TW509602B - Method of manufacturing a three dimensional object - Google Patents

Abstract

A three-dimensional object is manufactured by filling and hardening a powder material around a core. A powder material is first filled and layered around the core, and a beam is then selectively irradiated on the layer of powder material to form a hardened layer united with the core. These steps are repeated to form a plurality of hardened layers around the core, thereby manufacturing the three-dimensional object having the core embedded therein.

Description

509602 A7 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, I_1 " 'B7 V. Description of the invention (1) Background of the invention 1 Field of the invention The present invention relates to a method for manufacturing three-dimensional objects, in which three-dimensional objects Obtained by laminating the hardened layers of the hardened powder material. 2. Description of Related Art A method for manufacturing a three-dimensional object by continuously laminating a hardened layer 1 02 of a hardened powder material 101 as described in FIGS. 50A and 50B is known. This method is disclosed in Japanese Patent No. 2 62 0 3 5 3 entitled "Method of Manufacturing Parts by Selective Sintering". According to this patent, a powder material 1 0 1 which is an organic material such as a resin or an inorganic material such as a metal is first accumulated, and then an optical beam (laser) such as a laser or a directional energy beam is irradiated thereon. Beam 1 1 2) and hardened to form a hardened layer 10 2. The thus-obtained hardened layers 102 were stacked on top of each other to form a three-dimensional object. In this case, as shown in FIG. 5A, the powder material 1 01 is supplied from the funnel 1 2 9 to the closed structure 1 3 0, and as shown in FIG. 5 B, the laser beam 1 1 2 is selectively Irradiated on a predetermined position. Repeatedly. This step forms a stack of hardened layers 102. The laser beam 1 1 2 is emitted from the laser head 1 3 1 'and is operated so that the direction of its path is changed by the scanning system 1 3 3 including the prism 1 3 2 so that the most within the closed structure 1 3 0 A predetermined position on the upper powder material 101 is selectively irradiated. However, in the above-mentioned conventional technology, the powder material 〇1 塡 -f C, please read the precautions on the back before filling out this page} Packing -§1 I ^ OJa n I 1 n 1 Applicable to China National Standard (CNS) A4 specification (210 x 297 mm) -4-509602 A7 B7 Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economy Will become 100%. Therefore, there is a problem that the strength of the formed object is weak compared with the basic mechanical strength of the material. Another problem is that although the laser beam 1 1 2 must be scanned to form the hardened layer 102, the forming time becomes longer because the amount of scanning data in the contour line of the formed object is large. Another problem is that because the powder material 1 Q 1 shrinks during hardening, the hardened layer 102 is deformed, and thus a shaped object with satisfactory accuracy cannot be produced. SUMMARY OF THE INVENTION The present invention has been developed to overcome the above disadvantages. Therefore, an object of the present invention is to provide a method for manufacturing a three-dimensional object, which can easily manufacture a shaped object having high strength and high accuracy, even if its shape is complicated. To achieve the above and other objectives, the method according to the present invention is characterized by (a) filling a powder material around a core to form a powder material layer; (b > selectively irradiating a beam on the powder material layer to Forming a hardened layer combined with the core; and (c) repeating steps (a) and (b) to form a plurality of hardened layers surrounding the core. According to this method, if the core is formed to have high density and strength, the object is formed It has high strength as a whole. In addition, only the powder material in the outer area near the core must be continuously hardened to form a laminated structure '. Therefore, for a scan that provides a hardened beam at this time, the amount of scanning data is in the formed object The contour line is reduced. As a result, the scanning time is shortened, and the forming time can be shortened even if the shape is complicated. In addition, because of the hardened powder (please read the precautions on the back before filling this page) -------- 1. This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) -5- 509602 A7 B7___ 5. Description of the invention (3) The amount of final material is reduced, so Prevents distortion or deformation due to shrinkage during hardening, and can be made into highly accurate shaped objects. (Please read the note on the back? Matters before filling out this page.) In addition, The thickness is reduced to reduce the core, and the hardened layer is continuously stacked around the core. In addition, the powder material can be easily filled after each hardening, and the distance setting of the beam irradiated thereon and the like is also easy. It is formed of a plurality of sheet materials laminated on top of each other and bonded together before steps (a) and (b), and each of the sheet materials is an organic material or an inorganic material. Because the core is pre-integrated, so even The formed object has a complicated shape and can be easily produced. Alternatively, each of a plurality of sheet materials is laminated before step (a). Thereby, the sheet materials need not be laminated in advance as a whole, and only need to The core is formed by successively laminating the sheet material before the hardened layer is formed. Moreover, the filling of the powder material by the core does not form any obstacle. Economy The Intellectual Property Bureau employee consumer cooperative prints clothing. Advantageously, each of the plurality of sheet materials has a through hole, and the powder material is filled in the through hole and hardened to combine adjacent powder materials. In this case, in particular, The flake material is combined by the hardening of the powder material filled in the through hole, so the bonding strength between the flake materials is improved, and the flake material distortion caused by the thermal effect during the hardening of the powder material can be prevented, resulting in Higher-density and higher-precision shaped objects. In addition, the sheet material can be positioned approximately to each other without lateral offset. The through hole can be formed to extend through all the sheet materials of the plurality of sheet materials. The through hole can be inclined Each sheet material can be coated with a powder material, one of which is irradiated to the paper. The size of the paper applies to the Chinese National Standard (CNS) A4i grid (21G X 297 mm) " "

5. Description of the invention (4) The sheet material adjacent to the mouth leads to a shaped body with high strength. The powder material may have a lower melting point than the flake material. When a box-shaped object is manufactured, the powder material is filled in the space formed at the edge portion of each sheet material. The plurality of sheet materials are preferably positioned approximately by at least one positioning member. The positioning member is a movable member driven by a separate device, or is formed on at least one of a plurality of sheet materials. Alternatively, the positioning member is formed by irradiating a beam onto a powder material coated on at least one of the plurality of sheet materials. Alternatively, the plurality of sheet materials are substantially positioned by the protrusions formed thereon. Each of the plurality of sheet materials may have a positioning member integrally formed therewith, which is in contact with a separate positioning member. The sheet materials need not all have the same thickness, that is, a plurality of sheet materials may have different thicknesses. In this case, the thickness of the sheet material is set to be thicker at a position where the inclination of the outer surface of the core is steep, and thinner at a position where the inclination is moderate. Therefore, the level difference generated at the edge of the sheet material can be reduced, and the surface of the shaped object can be smoothly completed. A solidified powder layer can be interposed between adjacent sheet materials. In this case, in particular, even if the laminated surface of the sheet material has a complicated shape, it can be easily manufactured to have a fine and complicated shape by positioning the solidified powder layer between adjacent sheet materials. Shaped object. The layer of powder material filled around each sheet of material may have a push-like outer surface formed by vibration. By this, the smooth completion of the surface of the formed object can be achieved. In addition, when polishing is carried out, 'the amount to be removed is reduced' (please read the precautions on the back before filling this page) The paper size printed by the cooperative is applicable to China National Standard (CNS) A4 (210 297 mm) -7- 509602 A7 B7 V. Description of the invention (5) It can reduce the completion time. (Please read the notes on the back before filling out this page) The core and powder materials can be formed from different materials. In this case, a shaped object having a high surface hardness such as a cutter, a honing tool, and the like can be easily manufactured. Alternatively, the core may be paper, plastic resin, aluminum, or the like having a lower melting point than a powder material, and the powder material may be an iron or copper-based powder. Because the core has a lower melting point than the powder material, a beam having a lower energy density than the energy density of the beam used to harden the powder material can be used to firmly bond adjacent sheet materials, thus preventing the interposition of the sheet materials. There is bad adhesion. In this case, the core is removed from the multiple hardened layers, thereby forming a cavity. This cavity can be used, for example, as a water or air channel for cooling purposes. Alternatively, molten or fluid-like materials may be filled in the cavities. If copper or brocade is filled in a hollow object, its thermal conductivity will increase. In addition, by filling a hollow object with a resistive material or concrete, a heater or a foam object can be formed, respectively. In addition, by filling with a high polymer resin, a shaped object having a heat storage effect can be formed. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Or, the core is formed of a conductive material and the powder material is formed of an insulating material. With this configuration, a three-dimensional circuit can be simply formed in a reduced time period. Alternatively, the cooling tube or heater can be buried in a hardened layer or in a conductive material. Brief description of drawings -8-This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 509602 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ---- -B7 ___ V. Description of Invention (6 ) The above and other objects and features of the present invention will be made more apparent from the following description of the preferred embodiments with reference to the drawings. The same parts in the drawings are indicated by the same reference numerals. 1A to 1E show a method of manufacturing a three-dimensional object according to a first embodiment of the present invention, and are sectional views of a manufacturing process thereof. 2A to 2E are views similar to FIGS. 1A to 1E, but showing a method of manufacturing a three-dimensional object according to a second embodiment of the present invention. 3A to 3E are views similar to FIGS. 1A to 1E, but showing a method of manufacturing a three-dimensional object according to a third embodiment of the present invention. Fig. 4 is a sectional view showing a method for laminating sheet materials. ^ 12) ^ Figures 5 A to 5 | It shows another lamination method of the sheet material. Figs. 6A to _ 彳 are views similar to Figs. 1A to 1e, but showing a method of manufacturing a three-dimensional object according to a fourth embodiment of the present invention. Fig. 7 shows a manufacturing method of a three-dimensional object according to a fifth embodiment of the present invention, and is a sectional view of a manufacturing process thereof. 8A and 8B are cross-sectional views of different lamination patterns of the sheet material. Fig. 9 is a sectional view of another lamination pattern of the sheet material. FIG. 10 is a cross-sectional view of another lamination pattern of the sheet material. FIG. 11 is a cross-sectional view of another lamination pattern of the sheet material. Fig. 12 is a cross-sectional view of another lamination pattern of the sheet material. Figs. 13A to 1C are cross-sectional views of other lamination patterns of the sheet material. Fig. 14 shows a method of pressing a three-dimensional object according to a sixth embodiment of the present invention, and is a cross-sectional view of a manufacturing process thereof. (Please read the notes on the back before filling this page)

This paper scale is applicable to China National Tombs Standard (CNS) A4 specification stone w χ Nogong Dong --- Figure drawing method 509602 V. Description of the invention (7) Figure 1 5A and 1 5 B are cross-sectional views of sheet materials and display Its different cascading modes. Figures 16A and 16B are cross-sectional views of sheet materials and show other different modes. Fig. 17 shows a manufacturing method of a three-dimensional object according to a seventh embodiment of the present invention, and is a sectional view of a manufacturing process thereof. 8 is a cross-sectional view of another lamination pattern of the sheet material. 9 shows the fabrication of a three-dimensional object according to an eighth embodiment of the present invention and a sectional view thereof. 〇 A to 20 C are cross-sectional views of comparative lamination patterns of sheet materials. 21A to 21C are sectional views of a lamination pattern of a sheet material in the method of FIG. 19. Figures 2 A to 2 2C are cross-sectional views of the sheet material, and some of them show the filling and hardening process of the powder material. Fig. 23 is a sectional view of another lamination pattern of the sheet material. Figures 2A and 2B are top views of the sheet material with islands formed after and before the connection is removed, respectively. Figures 2C and 24D are side views of the sheet materials of Figures 2A and 24B after they have been laminated, respectively. Figures 2A to 2C are top views of different sheet materials after and before the connection portion is removed and during positioning of the sheet material, respectively. Figure 2A is a top view of another sheet material. (Please read the notes on the back before filling this page) 4 * mn I ϋ ϋ «I n 一 .ον _1 1 n tti ·· ϋ ϋ I National Standard (CNS) A4 specification (210 X 297 mm) -10- 509602 A7 _ B7 V. Description of the invention (8) Figure 2 6 B is a cross-sectional view of the sheet material in Figure 2 6 A during positioning (please first (Read the phonetic on the back? Matters and then fill out this page) Figure 2 7 A and 2 7 B are cross-sectional views of different sheet materials during positioning. Figures 2 A and 2 B are cross-sectional views of another different sheet material during positioning. Figures 2A to 2C are sectional views of another positioning process. Figure 30 is a cross-sectional view of another different sheet material during positioning. Figures 31A and 31B are cross-sectional views of another different sheet material during positioning. Figures 3A and 3B are cross-sectional views of another different sheet material during positioning. 3 3 A to 3 3 F are sectional views illustrating the positioning of another sheet material. Figures 3A to 34F are views similar to Figures 3A to 3F, but showing the positioning process of different sheet materials. Figures 3 A to 3 C are top views of the sheet material during positioning. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figures 3 A and 3 6B are cross-sectional views of different sheet materials during positioning. Fig. 37 is a side view of one of the sheet materials shown in Fig. 36A when the positioning protrusion is being formed. Figures 3A to 38E are sectional views of the sheet material, showing all steps including the final cutting process. Figure 3 9A to 3 9 E are -11 corresponding to Figure 3 8A to 3 8 E, respectively-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) System 509602 A7 --- B7 V. Description of the invention (9) A perspective view of the sheet material. 40A to 40D are cross-sectional views of different sheet materials. FIG. 41A is a cross-sectional view of a shaped object having a low-melting core. FIG. 4B is a cross-sectional view of a comparative example of the formed object of FIG. 4A. Fig. 4A is a cross-sectional view of a sheet material constituting the core shown in Fig. 41A. 4 2 B and 4 2 C are top views of the sheet material of FIG. 4 2A, and particularly show different laser irradiation modes. Figure 43 is a sectional view of different shaped objects. 4A is a cross-sectional view of another different shaped object. FIG. 4B is a horizontal cross-sectional view of the shaped object of FIG. 4A. Fig. 45 is a sectional view of another shaped object. 4 6 A to 4 6 E are cross-sectional views of a manufacturing process of another formed object. Fig. 47 is a sectional view of another shaped object. Fig. 48 is a view similar to Fig. 47, but showing another formed object. Figs. 4A and 4B show a method of manufacturing a three-dimensional object according to a ninth embodiment of the present invention. FIG. 5A is a perspective view of a conventional device for manufacturing a three-dimensional object. Fig. 50B is a perspective view of the hardened layers stacked on top of each other by the conventional device of Fig. 50A. Component comparison table This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) -12- (Please read the note on the back 咅 S before filling this page)

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 509602 A7 _B7___ 5. Description of the Invention (10) 1: Powder material 2: Hardened layer 3: Component or core, embedded component 4: Side wall component 5: Upright movable plate 6: Above Edge 7: space 8: sheet material 9: through hole 9 a: lower side through hole 9 b: upper side through hole, middle through hole 9 c: through hole, upper through hole 1 0: cured powder layer 1 1: slider 1 2: Beam 1 3: Combined powder layer 1 4: Independent area or island 1 5: Connection part 1 6: Positioning side piece 1 7: Positioning pin 1 8: Push rod driver 1 9: Push rod 2 0 : Pin driver 21: Removable pin The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -13- (Please read the precautions on the back before filling this page)

509602 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7____ V. Description of the invention (11) 2 2: Positioning hole 2 3: Expansion part 2 4: Hardened part 2 6: Positioning rib 2 7: Projection part 2 8: Processor 2 9: Substrate 3 0 = Positioning pin 3 1: Through hole 3 2: Rib 33: Water or air passage 34: Powder coating device 3 5: Cooling pipe 3 6: Cutout 1 0 1: Hardened powder material 1 0 2: Hardened layer 1 1 2: Optical beam (laser beam) 1 2 9: Funnel 1 3 0: Closed structure 1 3 1: Laser head 1 3 2: 稜鏡 1 3 3: Scanning system A: Required size A: Laser irradiation device The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -14-(Please read the precautions on the back before filling this page)-* n · mn · n Bi ϋ Yikou, I nnnn — ^ i I— I * A7 ------- B7 _ V. Description of the invention (12) B: Filling part size B: Material supply device C: Processing device K: Inclination L: detailed description of preferred embodiment of length and size This application is based on Application No. 1 1-8 2 3 0 9 filed in Japan on March 25, 1999. Reference is incorporated herein. 1A to 1E show a method of manufacturing a three-dimensional object according to a first embodiment of the present invention, in which the three-dimensional object is obtained by continuously laminating a hardened layer 2 of a hardened powder material 1. According to this method, a member or core 3 (this member is hereinafter referred to as a buried member) to be buried in a target object is first placed on an upright movable plate 5, and then a powder material 1 is placed around the buried member 3. Charge up. Then, the powder material 1 is hardened near the embedded member 3 to be integrated therewith. Under the downward movement of the upright movable plate 5 ', the charging and hardening of the powder material 1 are repeatedly performed, so that the hardened layer 2 is continuously stacked. More specifically, the embedded member 3 is placed on the plate 5 surrounded by the side wall member 4, and the plate 5 is gradually reduced by a length L from the upper edge 6 of the side wall member 4, each time this length L corresponds to each hardened layer Therefore, the powder material 1 is filled or filled and hardened each time the plate 5 is lowered into the space 7 surrounded by the side wall member 4. (Please read the precautions on the back before filling out this page) Packing · 111 1T --------- Printed by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is sized to the Chinese National Standard (CNS) A4 (210 X 297 mm) -15- 509602 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (13) As shown in Figure 1A, the embedded member 3 is placed on the plate 5 in advance, and as shown in Figure As shown in FIG. 1B, the plate 5 is lowered by a length L equivalent to the thickness of the hardened layer 2. Then, as shown in Fig. 1C, the powder material 1 is filled in the space 7 surrounded by the side wall member 4. A slider 11 that slides in close contact with the inner surface of the side wall member 4 is mounted on the outer peripheral surface of the plate 5 and a space 7 without any leakage of the powder material 1 is formed above the side wall member 4 Edge 6-at a predetermined depth (dimension l). Next, as shown in FIG. 1D, the beam 12 is irradiated to harden the powder material 1 only in the outer region in the vicinity of the embedded member 3. At this time, the hardened layer 2 is bonded to the outer surface of the embedded member 3. An optical beam such as a laser or a directional energy beam may be irradiated to become the beam 12 and the powder material 1 is hardened by sintering. The powder material 1 is an organic material such as a resin, or an inorganic material such as a metal, and since only necessary portions are selectively sintered by the above-mentioned beams 12, it is possible to perform efficient and reliable hardening. In addition, "the matter which is hardened from the powder material 1 and combined with the embedded member 3" The quality of the embedded member 3 is preferably the same as that of the powder material 1. However, separate expensive and high-strength materials can be used. Repeat the above steps of Figures 1 B to 1 D until the shaped object is finally completed as shown in Figure 1 E. In this case, a metal component or a metal mold or the like can be manufactured by hardening and lamination of the metal powder material 1, and the resin powder material 1 can be used to manufacture the resin component. Also, it is possible to manufacture a shaped object or a component part in which an organic material or an inorganic material is mixed. Therefore, by forming a strong embedded member 3 at a high density, a molded object having local strength can be manufactured. In addition, only near the embedded member 3 (Please read the precautions on the back before filling this page)

This paper rule has been obtained from the CNS A4 specification ⑽ X 297 mm_1- ^ | 6 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 509602 A7 ____________ B7 V. Powder in the outer area of the description of the invention (14) Material 1 must be continuously hardened into a layer structure, and at this time, the amount of scan data that provides a scan of the hardened beam 12 is reduced within the contour of the shaped object, thereby reducing the scan time. Even if the shape is complicated ', the molding time can be shortened. In addition, by the fact that the amount of the hardened powder material 1 is reduced, deformation due to shrinkage during hardening can be prevented 'and highly accurate formed objects can be manufactured. In addition, the 'embedded member 3 reduces the length l equivalent to the thickness of the hardened layer 2 each time while the hardened layer 2 is continuously stacked around it, so that an optimal manufacturing facility can be formed, wherein the powder material 1 can be formed after each hardening It is easy to be charged and the distance setting of the beam 12 irradiated thereon is also easy. Since the plate 5 is reduced from the upper edge 6 of the side wall member 4 by a length L equivalent to the thickness of the hardened layer 2 at a time, the powder material 1 is accurately filled with an appropriate amount for the length L. 2A to 2E show a method of manufacturing a three-dimensional object according to a second embodiment of the present invention, in which a plurality of sheet materials 8 are laminated together to form an embedded member 3. In this case, each sheet material 8 is an inorganic material or an organic material 'and after it has been laminated one upon the other and bonded together, the sheet material is placed on the board 5. Therefore, even if the shape of the target object is complicated, it can be easily manufactured by obtaining the embedded member 3 by laminating the sheet material 8 buried inside. It should be noted that the configuration of this embodiment is the same as the embodiment shown in FIGS. 1A to 1E except for this. FIGS. 3A to 3E show a method for manufacturing a three-dimensional object according to a third embodiment of the present invention, in which a sheet of paper is applied to Chinese National Standard (CNS) A4 specifications (210 X) before each hardened layer 2 is formed. 297 mm) -17-^ -------- ^ --------- (Please read the notes on the back before filling out this page) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 509602 A7 _______ B7 V. Description of the invention (15) The material 8 is placed on the plate 5 or another sheet material 8 to form the embedded member 3. In this case, the 'sheet material 8 is cut into a predetermined shape, and its thickness dimension becomes approximately equal to the dimension L of the thickness of the hardened layer 2. Although each sheet material 8 is placed on the plate 5 i before the plate 5 is lowered by the dimension L: ', the sheet material 8 may be placed on the plate 5 after the plate 5 has been lowered. That is, the steps of FIG. 3A and are interchangeable. In this case, 'because the sheet material 8 does not have to be fully laminated and bonded in advance to form the embedded member 3, the embedded member 3 can be manufactured simply by the continuous stacking configuration of the sheet material 8 before the hardened layer 2 is formed. . The filling of the powder material 1 by the embedded member 3 does not cause any obstruction. In addition, the 'embedded member 3 does not protrude upward from the filled powder material 1 and thus does not cause any interference with the hardening operation of the powder material 1 irradiated by the beam 12. It should be noted that the configuration of this embodiment is the same as the embodiment shown in FIGS. 2A to 2E above. In the above embodiment, as shown in FIG. 4, the powder material 1 is filled around the sheet material 8, and no powder material 1 is placed between the sheet materials 8. In this case, the gap between the edge surfaces of the sheet material 8 is blocked by the hardened layer 2 of the powder material 1 and is firmly bonded together, thereby preventing the sheet material 8 from being distorted from the edge surface. In addition, since the joint portion is small, it is also less affected by thermal strain or the like, so that it is possible to produce a structure that is precisely shaped with a raised height. In addition, as shown in FIGS. 5A to 5D, the powder material 1 can be coated and interposed between the sheet materials 8, and by melting or sintering the powder material 1 between the sheet materials 8, Combine each other. In this case, the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 18 (Please read the precautions on the back before filling this page)

509602 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. In the description of the invention (16) 'As shown in Figures 5 A and 5 B, the powder material 1 is first coated on the surface of the underlying sheet material 8 to form Combined powder layers 1 3. Then, as shown in FIG. 5C, the upper sheet material 8 is placed on the bonding powder layer 1 3 'and as shown in FIG. 5D', for example, the laser beam 12 is irradiated from above through the upper sheet material 8于 conjugate powder layer 1 3。 Thereby, the bonding powder layer 13 is melted or sintered, and the upper and lower sheet materials 8 are bonded. In this case, the bonding strength between the sheet materials 8 is increased to increase the mechanical strength of the shaped object. If a powder material 1 having a lower melting point than the sheet material 8 is used, the molding can be performed without any damage due to the thermal effect of the beam 12 on the sheet material 8. Therefore, a highly accurately shaped article without any deformation or distortion occurring in the sheet material 8 is obtained. 6A to 6D show a method of manufacturing a three-dimensional object according to a fourth embodiment of the present invention, in which a powder material 1 is filled in a through hole 9 provided in each of the laminated sheet materials 8 and the sheet material 8 is borrowed Bonded together with the hardened powder material 1. In this case, as shown in FIGS. 6A and 6B, 'from above the sheet material 8 having the plurality of through holes 9, the powder material worker is filled around the sheet material 8, and is also filled in the through hole 9, and As shown in FIG. 6C, for example, a laser beam 12 is irradiated from above the sheet material 8 to harden the powder material 1 surrounding the sheet material and the powder material 1 filled in the through hole 9. The steps of FIGS. 6A to 6c are repeated until the shaped object is finally completed as shown in FIG. 6D. Since the flake material 8 is bonded by the hardening of the powder material i filled in the through hole 9, the bonding strength between the flake materials 8 is increased, and flakes due to thermal effects during the hardening of the powder material 1 can be prevented ( Please read the precautions on the back before filling in this page) Binding _ ^ ------- I · This paper size is applicable _ Tsukazumi Standard (CNS) A4_ Regulations Q χ No public shame 19 509602 Ministry of Economy Wisdom Printed by A7 B7, Consumer Cooperative of the Property Bureau. 5. Description of the invention (17) Distortion of material 8, which can provide high-strength and highly accurate shaped objects. It should be noted that, except for this, the configuration of this embodiment is the same as the embodiment shown in Figs. 3A to 3E. Fig. 7 shows a method for manufacturing a three-dimensional object according to a fifth embodiment of the present invention, in which the through hole 9 extends over the sheet material 8. In this case, the through holes 9 extending through all the sheet materials 8 are formed at a plurality of positions. In this case, because the sheet materials 8 are bonded together by the hardening of the powder material 1 filled in the through-holes 9 that completely extend past the sheet materials 8, the sheet materials 8 can be accurate to each other without lateral offset Ground positioning and combining together can further increase the accuracy and strength of the shaped object. It should be noted that the configuration of this embodiment is the same as that shown in Figs. 6A to 6D. As shown in FIGS. 8A and 8B, the through hole 9 may be inclined. More specifically, as shown in FIG. 8A, the through-holes 9 in each layer of sheet material 8 may be inclined in a staggered and different direction, or as shown in FIG. 8B, the through-holes 9 in the multilayer sheet material 8 may be Staggered and tilted in different directions. In this case, in the direction in which the sheet materials 8 overlap, it is difficult for the sheet materials 8 to be separated from each other, thereby further enhancing the strength of the molded object. In addition, as shown in FIG. 9 'in a through-hole 9 extending through two adjacent sheet materials 8, the upper-side through-hole 9b can be used as a hardened powder material filled in the lower-side through-hole 9a. Escape hole for 1. In this case, when the powder material 1 filled in the lower side through-hole 9 a is hardened, since the rising distortion due to the condensation of the powder material 1 escapes through the upper side through-hole 9 and is absorbed by it, it can be The paper size for improving the adhesion between sheet materials 8 applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -20-(Please read the note on the back first? Matters before filling out this page) ---- Order ---------. 509602 A7 V. Description of the invention (18) Characteristic. As shown in FIG. 10, two adjacent sheet materials 8 may have a through-hole 9c not communicating with the through-hole 9a and a through-hole 9 ^ communicating with the through-hole 9a. In this case, 'the through-holes 9 b, 9 a communicating with each other can be used to perform positioning across the sheet material 8' and the through-holes 9 c not communicating with the through-holes 9 3 are used to increase the Adhesive strength. Alternatively, as shown in FIG. 11, the hole diameter of the through hole 9 extending through the sheet material 8 may be different across the layers of sheet material 8. In this case, the upper and lower through holes 9 c '9 a are formed to have a large diameter, and the middle through holes 9 b are formed to have a small diameter. In addition, as shown in FIG. 12, chamfering can be performed on the respective opening edges of the through holes 9b, 9a extending over the sheet material 8 of the upper and lower layers. In this case, it is difficult for the sheet materials 8 to be separated from each other in the overlapping direction of the sheet materials 8, so that the adhesive strength over the sheet materials 8 can be further increased. In addition, as shown in FIGS. 3A to 1C, the through hole 9 may be a push-out shape. More specifically, as shown in FIG. 1A, the lower side through hole 9a in which the powder material 1 is filled and hardened and the upper side through hole 9b forming the escape hole can be formed to have the same inclination and the same The same push-like holes of the same size. Alternatively, as shown in FIG. 1B, the through-holes 9 extending over a large number of layers may be formed as the same push-shaped holes having the same inclination and the same size. Alternatively, as shown in Fig. 1C, the through-hole 9 extending over a large number of layers may be formed as a push-shaped hole having a continuous side surface by continuously changing its size. In the plurality of through holes 9, the pushing direction of some holes may be opposite to that of other holes. In this case, in the overlapping direction of the sheet material 8, (please read the note on the back? Matters before filling out this page). -------- Order ---------. Ministry of Economic Affairs Printed by the Intellectual Property Bureau Staff Consumer Cooperatives The paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) -21-509602 A7 ____ — B7 V. Description of the invention (19) Sheet materials 8 are difficult to separate from each other, so The adhesion strength between the sheet materials 8 can be improved. And, it is easy to locate. (Please read the precautions on the back before filling in this page) Fig. 14 shows a method of manufacturing a three-dimensional object according to the sixth embodiment of the present invention, wherein the thickness of the sheet material 8 is changed and it is set to be the embedded member 3 The position where the inclination K of the outer surface is steep (the position where the inclination K is close to the vertical direction) is thicker, and at the position where the inclination K is gentle (the position where the inclination K is close to the horizontal direction) is thinner. In this case, as shown in FIG. 15A, the sheet material 8 can be thicker at a position where the inclination K is close to the vertical direction, so that the number of laminations is reduced, and thus the molding time can be reduced. In comparison, as shown in FIG. 15B, the sheet material 8 is thinner at a position where the inclination K is close to the horizontal direction, so the level difference generated at the edge thereof is relatively small, so that the formed object can be smoothly completed. surface. In addition, as shown in FIG. 16A, the sheet material 8 may be integrally formed at each layer, and its thickness may be formed uniformly, and as shown in FIG. 16B, the multilayer sheet material 8 may be integrally formed at a specific position. Formed, and its thickness may vary. It should be noted that the configuration of this embodiment is the same as the embodiment shown in FIGS. 3A to 3E except that it can provide the same effect. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs FIG. 17 shows a manufacturing method of a three-dimensional object according to a seventh embodiment of the present invention, in which a solidified powder layer 10 is interposed between sheet materials 8. In this case, the solidified powder layer 10 is placed in place of the sheet material 8 and a strong combination of the sheet material 8 on the upper and lower sides is provided. Therefore, 'Even if the shape of the laminated surface of the sheet material 8 is finely complicated, for example, even if the cut-out shape is complicated and a large number of independent contour lines of islands are formed, the solidified powder can be selectively or appropriately formed- 22- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) 509602 A7 B7 V. Description of the invention (20) Layer 10 replaces sheet material 8, thus facilitating the manufacture of complex objects. (Please read the notes on the back before filling this page) As shown in Figure 18, multiple cured powder layers 10 with different thicknesses can be formed. In this case, in order to obtain the cured powder layer 10, the coating and hardening of the powder material 1 may be repeated multiple times, which is easier than changing the thickness of the sheet material 8 and does not require any special mechanism or device. It should be noted that the configuration of this embodiment is the same as that shown in Figs. 3A to 3E. FIG. 19 shows a method of manufacturing a three-dimensional object according to an eighth embodiment of the present invention, wherein when the embedded member 3 has a stepped portion on the outer surface of the sheet material 8, the powder material 1 is filled in a stepped shape. It is hardened in and inside the recess so that its upper surface can form a push shape along the inclination of the step. Although in the case of FIGS. 2 A to 2 1 C, the level difference is quite large, it can be reduced along the step by the inclination K, as shown in FIGS. 2 A to 2 1C. Here, FIGS. 20A and 21A show the overall shape, FIGS. 2B and 2B show the state where the beam 12 is irradiated to harden the powder material 1, and FIGS. 20C and 21C show the powder material. 1 hardened layer 2 that has hardened. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In this case, the stepped outer surface of the embedded member 3 is charged.. The powder material 1 in the recessed portion of the stepped portion is hardened to form an approximate inclination K The shape of the push can smoothly finish the surface of the formed object. In addition, when polishing is performed, the amount to be scraped or removed is reduced, thereby shortening the completion time. An exciter can be effectively used to form the upper surface of the powder material 1 which has been filled in the recessed portion of the stepped portion into a push shape. Example 23- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 509602 A7 B7 ____ V. Description of the invention (21) (Please read the note on the back? Matters before filling out this page) For example As shown in FIGS. 2 2 A and 2 2 B, after the powder material 1 is charged, the plate 5 rises and applies vibration thereto, so the unnecessary powder material 1 is shaken off, so that the upper surface can be formed. For push shape. In this case, as shown in FIG. 2A, in the state where the plate 5 is lowered to a predetermined position, the 'powder material 1 is filled into the space 7 surrounded by the side wall member 4, and as shown in FIG. 2B, the plate 5 is raised to the highest position and is vibrated so that the unnecessary powder material 1 is shaken off, so that the upper surface of the powder material 1 is formed in a push shape. Then, as shown in Fig. 2C, the plate 5 is lowered to a predetermined position 'and in this state, the beam 12 is irradiated to the powder material 1 surrounding the sheet material 8 to form a hardened layer 2. It should be noted that, except for this, the configuration of this embodiment is the same as that shown in Figs. 3A to 3E. According to the present invention, by irradiating an optical beam such as a laser or a directional energy beam, the powder material 1 is hardened by sintering, and the sheet material 8 is cut into a predetermined shape. By employing an optical beam in this manner, localized, site-specific hardening can be performed without applying any undesired effects due to heat to the sheet material 8. In addition, the optical beam can be scanned accurately and freely according to the contour shape. In addition, when manufacturing box-shaped objects, as shown in Figures 2 and 3, the sheet material 8 is cut so that the space filled with the powder material 1 can be formed on each sheet. The edge portion of the material 8. That is, the sheet material 8 at the lowermost layer may be shaped to fit the shape of the shaped object (required size A), but the other sheet materials 8 are considered in consideration of the amount of the powder material 1 filled in the edge portion thereof. Cut to a slightly smaller size to ensure a space (filling part size B). In this case, the edge portions of the sheet material 8 are firmly bonded together ^ The paper size applies the Chinese National Standard (CNS) A4 specification (21〇X 297 public love) ----- Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the employee consumer cooperative 509602 A7 _________ Β7 __ V. Description of the invention (22) 'And a highly accurate shaped object forming a predetermined box shape having a desired size A can be obtained. As shown in FIGS. 2 4 A to 2 4 D, if an independent area or island 14 having an independent contour line exists on the laminated surface of the sheet material 8, the sheet material 8 is cut and formed to have an island shape. The shape of the connecting part 15 connected to the main part 14 and the main part. In this case, after the lamination of the sheet material 8 or after the manufacturing of the shaped object is completed, the connecting portion 15 is cut and removed, as shown in Figs. 2A and 24D. As a result, when the cut sheet material 8 is transported, since the island 14 is integrated with the main portion by the connecting portion 15 as shown in FIG. 2 4B, g is easy to lose. In addition, as shown in FIG. 24C, when the sheet material 8 is laminated, the $ 14 position can be easily implemented by the integrated structure of the island 14 and the main part. As shown in FIGS. 2B and 2C, the sheet material 8 can be cut to have positioning side members 16 formed integrally therewith. With this configuration, the positioning of the sheet rice bucket 8 can be easily performed by bringing the positioning side member 16 into contact with the positioning pin 17. In this case, as shown in FIG. 2 5B, the positioning side members 16 meeting with each other at right angles together with the islands 1 4 are connected to the main part through the connecting part 5 and the stomach as shown in FIG. 2 5 C No, the sheet material 8 is appropriately positioned for subsequent lamination and bonding by bringing the two positioning side members 16 into contact with at least three positioning pins 17. Finally, as shown in FIG. 2A, all the connecting portions 15 and the positioning side members 16 are cut and removed. It should be noted that the positioning pins 17 are, for example, mounted on the plate 5 so as to protrude therefrom. The sheet material 8 can be positioned as shown in Figure 2 6 A and 2 6 B. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm. Γ 1-(Please read the note on the back first. P Please fill in this page again for details) Install i _ 丨! --- Order -------- · 509602 Printed by A7, Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, V. Invention Description (23) to implement. That is, the sheet material 8 is cut into a shape having the positioning side member 16 over its entire circumference, and the positioning of the sheet material 8 is performed by bringing the positioning side member 16 into contact with the inner wall surface of the side wall member 4. Fig. 2 The sheet material shown in 6 A has four positioning side members 16 surrounding the main part, and an island 14. The positioning side members 16 and the islands 1 4 both pass through a plurality of connecting portions 15. Connected with the main part. Before the sheet material 8 is laminated and bonded together, it is properly positioned by bringing the outer edge of the positioning side member 16 into contact with the inner wall surface of the side wall member 4, as shown in Figure 2 6 B It should be noted that all the connecting parts 5 and the positioning side members 16 are cut and removed. When the sheet material 8 is fixed When the position is implemented in a manner not shown in FIGS. 2 5 A to 2 C or FIGS. 2 6A and 2 6 B, the positioning operation is easy. Moreover, the area to be filled with the powder material 1 is small, so the powder material The amount is reduced. As a result, a shaped object with high accuracy can be obtained. As shown in FIGS. 2A and 2B, the positioning of the sheet material 8 can be performed using a pusher driver 18 each having a pusher 19. In During positioning, the pusher 19 advanced and retracted by the pusher driver 18 is held in contact with the outer edge of the sheet material 8. Here, FIG. 2A shows the state during positioning 'and FIG. 2B shows the positioning Release state. As shown in FIGS. 2A and 2B, the sheet material 8 can be positioned by inserting the movable pin 21 pushed and retracted by the pin driver 20 into the positioning hole 22 defined in the sheet material 8. . Here, FIG. 2 A shows the state during positioning, and FIG. 2 B shows the state of positioning release. When the sheet material 8 is nippled in this way, the optical beam is irradiated along the contour of the sheet material 8 to the paper scale. Applicable to China National Standard (CNS) A4 (210 X 297 mm) -26 (Please read the Zhuyin? Please fill out this page again}

509602 A7 ________ B7 V. Description of the invention (24) The line accurately scans the cat 'and performs good adhesion between the sheet materials 8 to increase the adhesion strength and the accuracy of the formed object. As shown in FIGS. 2A to 2C, the sheet material 8 can be positioned by inserting a movable pin 2 1 mounted on the straight movable plate 5 to move with the sheet material 8 into the positioning hole 2 2 provided in the sheet material 8 Come to implement. In this case, 'while the positioning of the sheet material 8 is being easily carried out, the steps shown in FIGS. 2 9 A and 2 9 B and the steps of irradiating the beam 12 on the powder material 1 to form a hardened layer 2 are repeated, Until finally, the shaped object is completed as shown in Figure 2 9C. The movable pin 21 remains embedded in the molded object as a part of the embedded member 3. As shown in Fig. 30, the end of the movable pin 21 can be gapped (inflated portion 23). Or as shown in FIG. 3A, the powder material 1 is filled in the positioning hole 22 of the uppermost sheet material 8 and is hardened to be combined with the end of the movable pin 21 (hardened portion 2 4). In this case, as shown in FIG. 3B, the positioning hole 22 of the uppermost sheet material 8 may be chamfered (the chamfered portion 25). This makes it difficult for the sheet material 8 to be separated from the movable pin 21, and thus increases the strength in the laminating direction of the sheet material 8. When the positioning of the sheet material 8 is implemented by inserting the movable pin 21 into the positioning hole 22 provided in the sheet material 8, the movable pin 21 can be inserted into all the sheet materials 8, as shown in FIG. 3 2 As shown in A, or each of the plurality of movable pins 21 is only inserted into two adjacent (upper and lower) sheet materials 8, as shown in FIG. 3 2B. As shown in Figure 3 3 A to 3 3 F, the movable pin 2 1 can be formed in the following paper. The standard of China National Standards (CNS) A4 (210 X 297 mm) is applicable (please read the precautions on the back before filling in this Page) 4 * 0 nn I nn · n I 口 f I ϋ nnn In n I · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -27- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 509602 A7 --- B7 DESCRIPTION OF THE INVENTION (25) The layered sheet material 8 is projected therefrom. More specifically, as shown in FIG. 3A, the powder material 1 is first coated on the upper surface of the sheet material 8, and as shown in FIG. 3B, the spot beam 12 is selectively irradiated on the powder material. 1 to form a movable pin 21 by performing its hardening. Then, as shown in FIG. 3 3C, the powder material 1 ′ remaining unhardened is removed so that the movable pin 21 is protruded from the upper surface of the sheet material 8, and as shown in FIG. 3 3 D, another sheet material 8 The movable pin 21 is placed and appropriately positioned on the lower sheet material 8 by inserting the movable pin 21 into the positioning hole 22 of the upper sheet material 8. Then, as shown in FIGS. 3 3 e and 3 3 F, the separated powder material 1 is filled, and a beam 12 is irradiated on the powder material 1 surrounding the upper sheet material 8 to form a hardened layer 2. Repeat these steps until the target object is obtained. In this case, no separate movable pin is required, and the shape and size of the movable pin 21 can be freely determined according to the positioning hole 22. In addition, during the process of laminating the sheet material 8, the strength in the laminating direction of the sheet material 8 can be easily increased. The positioning of the sheet material 8 can be performed in a manner not shown in FIGS. 3A to 3F and FIGS. 3A to 3C. The two sheet materials 8 can be appropriately positioned with each other by bringing the outer edges of the upper sheet material 8 into contact with the positioning ribs 26 formed on the upper surface of the lower sheet material 8. More specifically, as shown in FIG. 3A, the powder material 1 is first coated on the upper surface of the lower sheet material 8, and as shown in FIG. 3B, a linear beam 12 is irradiated on a predetermined portion of the powder material 1. The positioning ribs 26 are formed by performing hardening. As shown in Figure 3 4 C and Figure 3 5 A, to maintain the unhardened paper size, the Chinese National Standard (CNS) A4 Regulation (210 X 297 mm) is applicable. _ 28 _ (Please read the note on the back first? Matters then (Fill in this page) Packing ----------- Order --------- si. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 509602 A7 ------ B7 V. Invention Description (26 The pulverized powder material 1 is removed, thereby causing the positioning ribs 2 6 to protrude from the upper surface of the sheet material 8. Then, as shown in FIGS. 3D and 3B, another sheet material 8 is stacked on the sheet material 8 having the positioning ribs 26. At this time, the outer edge of the upper sheet material 8 is kept in contact with the positioning rib 26, so that the two sheet materials 8 are positioned to each other. Then, as shown in FIGS. 3 4 E and 3 4 F and FIG. 3 5 C, the separated powder material 1 is filled, and the beam 12 is irradiated onto the powder material 1 wound around the upper sheet material 8 except that the positioning has been formed. Outside the ribs 26, a hardened layer 2 is formed. Repeat these steps until you get the target object. And in this case, no separate positioning rib is required, and the shape and size of the positioning rib 26 can be freely determined. In addition, the strength in the laminating direction of the sheet material 8 can be easily increased. As shown in FIGS. 36A and 36B, the positioning of the sheet material 8 can be performed by introducing the protrusions 27 formed on the lower surface of the sheet material 8 into the recesses of the upper surface of the sheet material 8 below. In this case, as shown in FIG. 37, the 'protrusions 27 and recesses can be formed by pressing the punches against the upper surface of each sheet material 8 using a processor 2 8 for moving the punches upright. . As shown in Figs. 38A to 38E and Figs. 39A to 39E, the final step after hardening all of the predetermined powder materials 1 by sintering is performed. All steps in this case are discussed below in the order of Figs. 3A to 3E and Figs. 3A to 3E. First, as shown in Figure 3 8A and Figure 3 9A, the gold paper size of a roll is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) -29- -------- --- ^-Order --------- (Please read the notes on the back before filling in this page) A7 -------- Β7 ___ 5. Description of the invention (27) It is a sheet material 8 It is rolled up, and the beam 2 is irradiated thereon to form a through hole 9 (hole for adhesion), and it is cut into a shape having a predetermined contour line. Next, a sheet material 8 cut into a predetermined shape is placed on a plate 5 surrounded by a side wall member 4. Then, as shown in FIGS. 3 8 B to 3 8 D and FIGS. 3 9 B to 3 9 D, the 'powder material 1 is filled around the sheet material 8 from above and filled in the through hole 9, and the beam 12 is from above The sheet material 8 is irradiated to harden the powder material 1 filled around the sheet material 8 and filled in the through-holes 9 as in the embodiment shown in FIG. 7. If these steps are repeated twice, a two-layer shaped object is completed. In this case, the beam 12 is irradiated from the laser irradiation device a, the powder material 1 is supplied and filled by the material supply device B, and the powder material 1 is sintered and hardened by the irradiation of the beam 12 In order to combine the sheet material 8 through the contour line portion and the through hole 9. In addition, as shown in FIGS. 3 8E and 3 9E, the final step is to perform a machining process on the upper surface of the molded object. Thereby, the portion of the hardened powder material 1 (around the sheet material 8 and the hardened layer 2 in the through hole 9) protruding from the upper surface of the molded object is cut and removed by the processing device C. In the above embodiment, the embedding member 3 and the powder material 1 may be made of different materials. For example, the embedded member 3 may be made of iron or steel plate, and the powder material 1 may be a ceramic powder or hard metal powder which is harder than the embedded member 3 after being hardened. In this case, the shaped object is manufactured in a manner as shown in FIGS. 40A to 40D. More specifically, as shown in FIG. 4A, the substrate 2 9 on which the positioning pins 30 are formed is first placed on the upright movable plate 5 and then thin (please read the precautions on the back before filling this page) Packing -------- Order --------- I. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with China National Standard (CNS) A4 (210 X 297 mm) -30- A7

The sheet material 8 is placed on the substrate 29 ±, and is appropriately positioned by 509602 by the positioning pin 30. V. Description of the invention (28). Then, the plate 5 is lowered so that the upper surface of the sheet material 8 can be at the same height as the upper edge of the side wall member 4, and the powder material 1 is filled around the substrate 29 and the sheet material 8, as shown in FIG. 4B. After the beam 12 is irradiated on the powder material 丄 near the sheet material 8, as shown in FIG. 4C, the plate 5 is further lowered to be equivalent to the next sheet material on the sheet material 8 placed on the substrate 29. The length L of the thickness. These steps are repeatedly performed until the required number of sheet materials 8 are laminated and bonded together by the hardened layer 2. However, in this case, the hardened layer 2 is also formed on the upper surface of the uppermost sheet material 8 so that the embedded member 3 may be completely covered by the hardened layer 2 as shown in FIG. 40D. The material of the substrate 29 may be the same as that of the embedded member 3, or may be the same as that of the powder material 1. According to this method ', it is possible to easily manufacture a shaped body having a high surface hardness, such as a cutter' honing tool, and the like. Alternatively, the embedded member 3 may be paper, plastic resin, aluminum, or the like having a lower melting point than the melting point of the powder material 1, and the powder material i may be a powder based on iron or copper. In this case, the sheet material 8 functions to support the powder material 1 only. Therefore, the powder material is not filled inside the embedded member 3, but is filled only around the embedded member 3. In this case, the shape of the embedded member 3 is determined so that the embedded member 3 can be entirely covered with the hardened powder material (hardened layer) 2 as shown in FIG. 4A. If the embedded member 3 is not or even partially covered by the hardened powder material (hardened layer) 2, as shown in Figure 4 1 B, it is likely to be (please read the precautions on the back before filling this page). --- Order --------- ^^ 1. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 31 509602 A7

V. Description of the invention (29) Some sheet materials 8 are melted during forming, resulting in deformation of the formed object. (Please read the notes on the back before filling in this page.) Since the embedded member 3 has a lower melting point than the melting point of the powder material 1, it can use a lower energy density than the energy density of the beam used to harden the powder material 1. The beam is firmly combined with the adjacent sheet material 8 as shown in FIG. 4 2A, thereby preventing bad adhesion between the sheet materials 8. Figure 4 2B shows the optical beam 12 continuously scanning the upper sheet material 8 from above to melt and combine the adjacent sheet material 8, while Figure 4 2C shows the optical beam 12 discontinuously scanning to Another way of selectively melting and joining adjacent sheet materials 8. Alternatively, the optical beam 12 may be irradiated discontinuously on the upper sheet material 8 to partially join the adjacent sheet materials 8 and then be continuously irradiated to integrally bind the sheet materials. Alternatively, ultrasonic vibration may be applied to the adjacent sheet material 8 to bond them. Since the bonding energy required for bonding the sheet material 8 can be reduced, a sheet material having a thickness larger than the thickness of the powder material can be used, thereby shortening the molding time. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs If the embedded member 3 has a melting point lower than that of the powder material 1, the embedded member 3 can be removed from the hardened powder material (hardened layer) 2. In this case, After the forming is started, only a few layers are formed with the powder material 1 to form a bottom wall of a formed object having a desired thickness. After the hardening of the powder material 1, the through hole 31 is formed in the bottom wall, as shown in FIG. 4 3. Thereby, the embedded member 3 can be removed from the hardened powder material (hardened layer) 2 through the through hole 3 1 by heating the formed object to melt or burn the embedded member 3 or to dissolve the embedded member 3 with a chemical substance. . The dimensions of this paper are in accordance with China National Standard (CNS) A4 (21〇X 297 mm) -32-" 一 " "-509602 A7 B7 V. Description of the invention (30) Instead of forming on the bottom wall of the shaped object Through-hole 3 1, a part of the bottom wall may be formed with a buried member 3. In this case, it is not necessary to subsequently form the through-hole 3 1 °. In order to prevent the molded object from being deformed after removing the embedded member 3, the embedded member 3 may be designed such that a plurality of ribs 32 are formed inside the molded object. 44A and 44B. Figures 4 and 5 show a mold, which is a typical example of a shaped body in which the embedded member has been removed. This mold has water or air channels 3 3 for cooling purposes, which are formed by removing the embedded member 3 from the formed object. With this configuration, a shaped object having a cavity or a complicated internal structure, such as a casting, can be easily manufactured, or the weight of the shaped object can be reduced. Referring again to FIG. 43, a molten metal or a fluid-like material (concrete, resin, or the like) can be filled in a hollow object through the through hole 31 to obtain an internal density of 100%. If copper is filled in a hollow object, its thermal conductivity will increase, and if aluminum is filled in the interior, not only its thermal conductivity will increase, but its weight will also be reduced. A heater can be manufactured by filling a hollow object with a resistive material. In addition, foaming molds can be made by filling concrete with hollow objects. In addition, by filling with a high polymer resin, a shaped object having a heat storage effect can be formed. Figures 4 A to 4 6 E show a method for manufacturing a laminated circuit, which is somewhat similar to the method shown in Figures 3 A to 3 E. As shown in Fig. 4A, after the conductive sheet material 8 is placed on the plate 5, the plate 5 is lowered by a distance L corresponding to the thickness of the conductive sheet material 8. As shown in Figure 4 6 B, 'Insulating powder material 1 is filled around the conductive sheet. The paper size applies Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page. ) I n I— n 11 ϋ in I. ΰτ aim · * Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 33 509602 A / Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy In addition, the upper surface of the powder coating device 8 is used to selectively coat the insulating powder. The 'beam 12' shown in FIG. 4C is irradiated onto the insulating powder material 1 near the conductive thin edge, thereby forming the structure shown in FIG. As shown in Fig. 4 6E, the plate 5 is lowered by a distance L, while the same material 8 is placed on the first conductive sheet material 8 as shown in Fig. 4 6E. The steps shown in 6 B to 4 6 E multiple times result in a stacked circuit structure, as shown in FIG. 4 7. The conductive sheet material 8 is preferably a copper sheet 1 and a resin powder is preferably used. According to this method, a three-dimensional circuit can be simply manufactured without a wet process, for example. Also, this method does not include a resist printing process, a water washing process, a process, and the like. In addition, there is no need to make a circuit in a short period of time. FIG. 4 8 shows that the cooling pipe 3 5 is embedded inside. Although in FIG. 4 8, the cooling pipe 35 is embedded in the hard and can be embedded in the conductive sheet material 8. Replaces the cold heater. 4 9 A and 4 9 B show a method for manufacturing a three-dimensional object according to the present invention, in which a three-dimensional object forms a sheep. More specifically, as shown in FIG. The surface is thinly conductive. Has three conductive sheets. Then, as in the peripheral edge 2 of 8, and as in the conductive sheet. Then, the layer 8 of the graphic circuit is repeatedly performed on the sheet material 8, and the insulating powder material must be printed under the plating or the like to form an insulating layer to remove the unnecessary copper overprint mask, so another layered circuit can be used. In the chemical layer 2, but the tube 35, the third embodiment of the ninth embodiment which can be buried is "the hardened layer 2." Sheets with cutouts 3 6 (Please read the note on the back? Matters before filling out this page) Loading -------- Order --------- This paper size applies to Chinese National Standards (CNS) A4 size (210 X 297 mm) -34- 509602 A7

V. Description of the invention (32) The material 8 is first placed and appropriately positioned on the plate 5, and the plate 5 is lowered by a distance L corresponding to the thickness of the sheet material 8. Then, the resin powder material 1 is filled in the space surrounding the sheet material 8 and in the cutouts 36. At this time, pressure is applied to the powder material 1 filled in the cuts 36 to increase its density, and the beam 12 is then irradiated on the powder material in the cuts 36 to form a hardened layer 2. By repeating these steps, a shaped object surrounded by the sheet material 8 is obtained, as shown in Fig. 4 9B. After the forming, the formed object is taken out by removing the sheet material 8. According to this method, any three-dimensional object having a dual structure, such as a bell, or any three-dimensional object having an overhanging portion can be easily manufactured because the sheet material 8 acts to support the powder material 1 or prevent deformation of the formed object. In addition, the unevenness of the side surface of the formed object or the unevenness of the lower surface of the overhang portion can be reduced, thereby improving the surface accuracy of the formed object. That is, the sheet material provided below the lateral or overhanging portion of the powder material 1 further prevents the powder material from being hardened due to heat conduction more than necessary. In the absence of the sheet material 8, even if the beam 12 is not irradiated, the powder material near the portion irradiated by the beam 12 will be melted by heat conduction, thereby deteriorating the surface roughness. Although the present invention has been described in detail by way of example with reference to the drawings, it should be noted that various changes and modifications will be apparent to those skilled in the art. Therefore, unless such changes and modifications depart from the spirit and scope of the present invention, they should be construed as being within the spirit and scope of the present invention. (Please read the precautions on the back before filling this page). -----------------------The paper size printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs applies the Chinese national standard (CNS) A4 size (210 X 297 mm) -35-

Claims (1)

509602 A8 B8 C8 D8 ---------- Sixth, the scope of patent application 1 · A method for manufacturing a three-dimensional object, including the following steps: (a) Filling a powder material around a core to form a powder material layer f Please read the notes on the back before filling this page) (b) Selectively irradiate a beam on the powder material layer to form a hardened layer combined with the core; and (c) Repeat steps (a) and (B) to form a plurality of hardened layers surrounding the core ', thereby manufacturing a three-dimensional object with the core embedded in the interior. 2 · The method for manufacturing a three-dimensional object according to item 1 of the scope of patent application, wherein the core comprises a plurality of sheet materials laminated on top of each other, which are combined before the steps (a) and (b), Each of the sheet materials is an organic material or an inorganic material. 3 · The method for manufacturing a three-dimensional object according to item 1 of the scope of patent application, wherein the core includes a plurality of sheet materials laminated on top of each other, and each of the plurality of sheet materials is an organic material or an inorganic material And are stacked before step (a). Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs4. The method for manufacturing a three-dimensional object according to item 3 of the scope of patent application, wherein each of the plurality of sheet materials has a through hole, and the powder material is filled in the through hole Medium and hardened to combine adjacent sheet materials. 5. The method for manufacturing a three-dimensional object according to item 4 of the scope of the patent application, wherein the through hole extends through all the sheet materials of the plurality of sheet materials. 6. The method for manufacturing a three-dimensional object according to item 4 of the scope of patent application, wherein the through hole is inclined. This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) -36-509602 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 ------ D8 VI. Application for patent scope 7 A method of manufacturing a three-dimensional object according to item 3 of the patent scope 'additionally includes a step of coating each thin material with a powder material after step (b)', wherein a beam is irradiated thereon to combine adjacent sheet materials . 8. The method of manufacturing a three-dimensional object according to item 7 of the scope of patent application ', wherein the powder material has a lower melting point than the sheet material. 9 · The method for manufacturing a three-dimensional object according to item 3 of the scope of the patent application, wherein each of the sheet materials has an independent region connected thereto through a plurality of connecting portions, and the plurality of connecting portions are being formed. Removed during or after. 1 0. The method of manufacturing a three-dimensional object according to item 3 of the scope of patent application ', wherein the powder material is filled in a space formed at an edge portion of each of the sheet materials. 1 1 The method of manufacturing a three-dimensional object according to item 3 of the scope of the patent application, wherein the plurality of sheet materials are substantially positioned by at least one positioning member. 1 2 · The method for manufacturing a three-dimensional object according to item 11 of the scope of patent application ', wherein the positioning member is a movable member driven by a separate device. 1 3. The method of manufacturing a three-dimensional object according to item 11 of the scope of patent application, wherein the positioning member is formed on at least one of the plurality of sheet members. 1 4 · The method for manufacturing a three-dimensional object as described in item 13 of the scope of the patent application, wherein the positioning member is coated on the device by irradiating a beam (please read the precautions on the back before filling this page) Binding --- 1-%! This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -37- __§1 — 509602 VI. Patent application powder on at least one of the sheet members Material. 1 5 · The method of manufacturing a three-dimensional object as described in item 3 of the scope of patent application (please read the precautions on the back before filling this page), wherein the plurality of sheet materials are formed by the protrusions formed thereon. It is roughly positioned. 1 6 · The method for manufacturing a three-dimensional object according to item 3 of the scope of patent application, wherein each of the plurality of sheet materials has a positioning member integrally formed therewith, and the positioning member is separated from a positioning member during positioning. contact. 1 7. The method for manufacturing a three-dimensional object according to item 3 of the scope of patent application, wherein the thickness of the plurality of thin sheet materials varies. [18] The method for manufacturing a three-dimensional object according to item 3 of the scope of patent application ', wherein a solidified powder layer is interposed between adjacent sheet materials. [19] The method of manufacturing a three-dimensional object according to item 3 of the scope of patent application ', wherein the powder material layer filled around each of the plurality of sheet materials has a push-up upper surface formed by vibration. 2 0. The method for manufacturing a three-dimensional object according to item 3 of the scope of patent application, wherein the core and the powder material are formed of different materials. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 1 · The manufacturing method of the three-dimensional object as described in the scope of patent application No. 20 ', wherein the core is removed from the plurality of hardened layers to thereby form a cavity. 2 2 · The method for manufacturing a three-dimensional object according to item 21 of the scope of patent application, wherein a molten or fluid-like material is filled in the cavity. 2 3 · The manufacturing method of the three-dimensional object according to item 20 of the scope of the patent application, wherein the core is formed of a conductive material, and the powder material is a national standard (CNS) A4 specification (210 X of the paper scale tile) 297 mm) —738 ^ --- 509602 A8 B8 C8 D8 6. The scope of patent application is formed by insulating materials (please read the precautions on the back before filling this page) The paper size printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs Applicable to China National Standard (CNS) A4 (210 X 297 mm) -39-