TW201141674A - Rapid prototyping apparatus for object realization using printing and rapid prototyping method - Google Patents

Abstract

A rapid prototyping apparatus for realizing a three dimensional object has a construction unit, a printing device, and a material feeding device. The printing device includes a printer head which sprays an adhesive agent toward the construction device, and a light source for curing the adhesive agent. The light source and the printer head move synchronously. The material feeding device includes a material feeder which fills the object's material into the space surrounded by the adhesive agent. A rapid prototype method for realizing a three dimensional object is to form an intermediate product of the object first. After a mold made of the adhesive agent is burned out in the sintering process, a final product of the object made of the object's material is formed. The method of the invention involves removing the mold by burning out the mold directly. The object thus formed has a high density and a good size precision.

Description

201141674 VI. Description of the Invention: [Technical Field] The present invention relates to a rapid prototyping machine and a rapid prototyping method, particularly to a printing aid-assisted material for forming a ceramic, metal or other material. Rapid prototyping machines and rapid prototyping methods. [Prior Art] Over the past decade, due to advances in comPuter Aided Manufacturing (CAM), the manufacturing industry has developed Rapid Prototyping (RP), which can quickly create original design ideas. Rapid Prototyping (RP) technology enables unlimited geometry, and the more complex parts, the greater the excellence of RP technology, the greater manpower and processing time, and the computer-aided design with the shortest time required (Computer Aided Design, referred to as CAD), the three-dimensional design parts are truly presented, not only can be touched, but also can truly feel its geometric curve, and can also test the assembly of parts, and even perform possible functional tests. There are many kinds of rapid prototyping methods, such as 3-D Printing, Stereo-Lithography (SLA), Selective Laser Sintering (SLS), and Solider Process (SP). Fused Deposition Modeling (FDM), Laminated Object Manufacturing (LOM), and the so-called Office RP - Rapid Concept Modeler (RCM). The inventor of the present invention based on the experience of the past in the field of R&D and manufacturing of rapid prototyping machines 201141674, which combines several major shortcomings of the known stereoscopic ceramic forming method. 1 Method and device 'listed strong ^ (4) type due to (four) Bad material 4 is very inferior. 'Processing is handed over and ancient is a, there is a corner at the corner, and the pottery and panties are damaged. The job time also causes precision.

Failed' and the complex shape of the ceramic parts is not easy to demould, and even can not demould. At present, several rapid prototyping methods are known as direct-type objects. 'In the manufacturing process, there is no mold protection on the outside of the material of the object. 'So-to' take or pick up objects, the external force directly acts on The object is also easy to damage, and without being protected by the mold protection, the object embryo is deformed by its own gravity, resulting in poor precision of the formed object. (2) When the ceramic element is poorly cured, it tends to shrink due to shrinkage of the material during drying and solidification, resulting in a change in the size of the object. (3) If NC (Numerical Control) cutting and hot-melt processing are used to cause residual stress on ceramic objects, micro-cracks are likely to occur during sintering, resulting in a decrease in strength. (4) For general rapid prototyping of ceramic objects, the layering effect of the powder coating and the density of the ceramic body are insufficient, resulting in a high surface roughness of the sintered ceramic article. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a rapid prototyping machine and a rapid prototyping method which are easy to demold, compact and high-precision molded articles, and have a small dimensional error. 201141674 In the present invention, the spray-assisted materialized rapid prototyping machine of the present invention is used for a three-dimensional object, and comprises: a base device comprising a construction unit, a printing device, and a feeding device.

The printing device comprises a material sliding device disposed on the base device and movable along an X direction, mounted on the material handling device and movable along a shape of the cutting contour of the object and facing The structuring unit ejects an adhesive nozzle, n illuminating members which move synchronously with the nozzle and emit light to cure the adhesive. The nozzle and the illuminating member can be synchronously moved along the x direction by the printing slide rail, and the nozzle and the illuminating member can also move along a y direction different from the χ direction with respect to the printing slide. . = the feeding device comprises a supply slide seated on one side of the printing slide and movably mounted on the base device along the X direction, and a combined use with the supply slide The feeding member for laying the material of the article on the construction sheet can also move in the Y direction relative to the feeding carriage. The rapid prototyping method of the printing aided physical material of the invention comprises: (A) printing the adhesive along the shape of the cut layer by means of printing according to a shape of a cut layer of the object to be formed, and being sprayed The printed adhesive forms a die cut layer defining a paving space, and provides a light to cure the adhesive while printing; (B) laying the material in the paving space; (C) Repeat step (A) and step (B) to form a layer of semi-finished products together with a layer of layers stacked from bottom to top, so that the semi-finished product has a coating on the outside and is made of an adhesive. a mold, and a body filled in the mold and made of the material of the object; and (D) sintering the semi-finished article to maintain a temperature at a first sintering temperature for a period of time, the adhesive being made The mold is burned out, leaving only the body of the material of the article, and the temperature is raised to a second sintering temperature to sinter the body into the desired article. [Embodiment] The foregoing and other technical contents, features and effects of the present invention are

The detailed description of a preferred embodiment of the present invention will be apparent from the following description. Referring to Figures 1, 2, and 3, a preferred embodiment of the spray-assisted materialized rapid prototyping machine of the present invention is used to form a three-dimensional object 6 (Fig. 6), which may be a shouting object (9), metal. The object (9), or the glass (four) piece (9), the rapid prototyping machine comprises: a base device, a printing device 2, a feeding device 3, a to knife cleaning device 4, and a nozzle cleaning device 8. Here, one χ direction, one γ direction, and one Ζ direction which are perpendicular to each other are defined first. The χ direction of the present embodiment is the left and right direction, the γ direction is the forward and backward directions, and the ζ direction is the up and down direction. The base unit 1 includes a base U, a construction unit 12, and two guide rails 13 which are spaced forward and backward and which extend in the weir direction and are disposed on the base 11. Among them, the construction sheet consists of 2 including - opening to the construction groove! 23, a construction plate 121 disposed in the construction groove 123 and movable up and down with respect to the base ^ in the ζ direction, and a drive rod 122 connecting and driving the construction plate 121 to move up and down. The manner in which the construction plate (2) is driven up and down by the 201141674 does not need to be limited. The printing device 2 includes a printing slide rail that is mounted on the guides 13 and can be moved left and right along the x direction. The printing slide rail 21 and the slide rail connecting member 22 of the guide rails 13 and the nozzles & erected on the printing slide rail 21 in the gamma direction (4) glue (4) storage bottle 24, a connection sputum storage bottle 24 and a supply hose 25 of the nozzle 23, a pump 26 connecting the glue supply tube 25 and the knee fluid storage view 24, connecting the glue supply f 25 And a pressure adjustment buffer 27 between the pump % and the nozzle 23, and two illumination members 28 respectively disposed on opposite sides of the nozzle 23 and coupled with the nozzle 23, the illumination member 28 may emit ultraviolet (uv) light or _ plain light, and the illuminating member 28 may move in the χ direction together with the head 23 or may move in the Y direction from the mouth. It is also possible to provide only one illumination member 28 when implemented. A liquid adhesive 7 i is stored in the glue storage bottle 24, and the adhesive 71 is a photosensitive resin material which is cured by light, and when the adhesive 71 is prepared, the external light curing adhesive (UV) When the adhesive is cured, an illuminating member 28 capable of emitting ultraviolet light is used. When the adhesive 71 is a material which can be cured by irradiation with halogen light (halogen curing adhesive), an illuminating member 28 capable of emitting halogen light is used. The adhesive 71 in the glue storage bottle 24 is transported through the pump 26 into the rubber hose 25 and the pressure adjustment buffer bottle 27 at an appropriate dose. The pressure adjustment buffer bottle 27 can be provided with a heating device for the bottle. After the adhesive 71 is heated and then transported to the nozzle 23 by the rubber hose 25, the viscosity of the heated adhesive 71 is reduced, and it is easier to transport, so that the subsequent printing process can be smoother than 201141674. The adhesive η in the head 23 is twisted. Further, the pressure adjustment buffer bottle 27 can adjust the injection pressure of the head 23. The final adhesive 71 is sprayed down on the surface of the construction flat plate 121 through a plurality of (four)-column orifices 231 of the nozzle μ. M4, the feeding device 3 comprises: a supply slide 31 which is mounted on the guide rails 13 and which is movable to the right and left in the direction of the printing slide 21, and (4) a feeding trough 32 on the base 11 and a feeding member 33 connected in series with the feeding chute 31 (4)

The feed chute 32 and the supply hose of the feed member 33% (4) are provided in the switch 37 for controlling the supply of the feed hose 34, and are disposed in the lower side of the feed chute 31. The knives % are supplied, and a raw material recovery tank 36 adjacent to the structuring plate 121 and used for recovering excess powder raw material or pulverized raw material.曰 wherein the supply trough 32 accommodates an object material 72 for molding an article, which may be a ceramic powder, such as a oxidized powder, a cerium oxide (si 〇 2 ) powder oxidized Zirconium (Zr〇2) powder, and may be a composite powder, a single-material powder, a single-metal powder, an alloy powder' or a glass powder, or may be a mixture of powder and other liquid or paste-like substances. The powder t (sl(10)y), for example, a UV slurry prepared by mixing ceramic (4) and (4) curing glue, or metal powder slurry or glass powder slurry. The present invention is not required to limit the composition and form of the article material 72. The feeding device 3 is configured such that the object material 72 in the supply tank 32 can be stably provided by a screw system (not shown), and the object material 72 is transferred to the material through the supply hose 34. With the supply part %, the feed piece μ 201141674 releases the object material 72 downwards. Moreover, when the switch 37 is supplied or not, when the switch 37 is opened, the supply hose 34 can be supplied to the supply member 33. When the switch 37 is closed, the supply hose % cannot be fed; The feed member 33 can be moved in the gamma direction relative to the feed slide, in addition to being spiked in the X direction with the feed carriage 3, and a proximity switch can be used. (ργ〇χ = one (10)) to control the movement stroke of the feed member 33 in the γ direction, and the width of the entire material material 72. "§

The spread scraper 35 is a 7-piece body extending longitudinally along the ¥ direction for flattening the article material 72. Referring to Figures 1, 2, and 3, the blade cleaning device 4 includes: a container 41 in the receiving groove 36, and a roller 42 that can be driven by a motor. Wherein, the container 41 and the cleaning roller 42 are repelled to the knife 35, and the container 41 is provided with a cleaning liquid, the water stain is 4 water' but not limited thereto, and the part of the cleaning roller 42 is : Soaking in the clear water, and then scrolling, as shown in the imaginary line in Figure 3, make Μ

42=:, cleaning one side of the roller 42 and pressing the cleaning roller to clean the material 72 of the material that has been affixed to the knives by the rotation of the roller 42. The rinsing material can be moved back to the original Position, continue to lay the next layer (4) The head cleaning device 8 includes: - a moving path of the squeegee b of the squeegee b disposed on the moving path of the head 23 and a waste glue spaced apart from the head 23 The collecting tank 44 is used to connect the nozzles 23 and the returning tubes of the waste rubber collecting tanks 44 for the smoothness of the printing process of the nozzle 23, and the cleaning nozzle 23 is cleaned by the setting of the board 23 to 201141674. As follows: the mouth ^ is moved back and forth along the direction of the gamma in the gamma direction, the hoe head a to the plate 43 嶋, the (four) plate 43 is soft (four) (four), the time head = = wipe the clean, in addition to the spray The dirt accumulated by the head U during work. The adhesive 71 adhered to the through hole 231 helps to keep the spray. The nozzle hole 231 will give off a trace amount of the clean shaft 71 at the time: (4) cleaning the sheet 43 for cleaning. The horse mouth g 45 is installed when the waste rubber is to be recycled. The recycling method is as follows: the adhesive 71 can be used to spray the waste pipe 231 through the waste pipe and through the rubber head 23 In the slot 44. It should be noted that since the head is moved in the X direction and the Y direction at this time, the cleaning head 23 is driven to drive the head 23 to move to the position of the blade 43. See Figures 1, 3, ς f: ,

Mm#, 6' The preferred embodiment of the rapid prototyping method of the invention relates to: The step of cutting each contour of the direction is to use the application software of the computer, and combine the CAW technology to create a 6-inch graphic, and output the graphic data to the software of the slice layer, and divide the object (9) by the calculation. The plurality of stacks are stacked one on top of the other, and the split layer calculation structure is transferred to the rapid prototyping mechanism of the present invention. "The rapid prototyping machine is controlled by a computer program to perform an action. Since the 1 graphic is not the improvement focus of the present invention, it is no longer explained in 2011-11674. (2) Performing step 5, the plant drives the left and right movement along the X direction, and *u drives the spray head 23 along the forward direction of the spray nozzle to the construction plate 21=3 while moving _" The surface of the plate 121, and then the primer - the primer 63 is fixedly bonded to the construction plate 12 = placed in a layer of wheel 3 into 53: the nozzle 23 is moved according to a cut V of the object 6〇' and moved along The path prints the adhesive 71 on the construction plate 121 on the bottom plate 121. The sound is 6U back (4) into a thin film cut θ 4 with a slice 611 defining one at M2. And, this, Zhaoguang The 28 θ 的 的 哈 哈 ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” 同步 同步 同步 同步 同步The mold slice layer is solidified by the ^63. The construction plate 121 is on the

疋 Effect to avoid mold shift. , U 33 along the Μ : (d) the _ 31 drives the feeder seat 31 ' and the feeder 33 itself can also slide relative to the supply ' thereby causing the feeder 33 to move correspondingly to: Above the space 612, while the feeding member 33 moves, the original piece 72 of the object is laid to fill the paving space 612, and the paving is driven to the knife 35 to make the object material 72 smooth and dusty. That is, when the line-making force of the first-cut layer is completed = when the raw material 72 is a slurry, the flat material heating or the infrared heat can be used to help the raw material to be solidified. The excess of the original object 72 (for example, the powder or the slurry of the evening) can be scraped and sent to the raw material 12 201141674 recovery tank 3 6 for recycling. (5) Performing step 55: driving the construction plate 121 to descend a predetermined height along the z direction to accommodate the quantitative thickness of the die cut layer 011 in the Z direction. Steps 53, 54 are then repeated to form a second layer of cut. Thereafter, steps 53 to 55 are repeatedly repeated, so that a layer of layers stacked from bottom to top together form an object semi-finished product 6, and the topmost layer is a die-cut layer 611, and a layer 611 can be reserved in the die-cut layer 611. a flow path 612 similar to the cast gate riser, the flow path 612 extending through the upper and lower surfaces of the die cut layer 611

〇 Therefore, the 5th article semi-finished product 6 has a mold 61 completely covered on the outside and made of the knee adhesive 71, and a body 62 filled in the mold n and composed of the article material 72 described above. 〇 (6) Performing step 56: removing the primer 63 to lift the article semi-finished product 6 from the construction flat plate 121 and take out the article semi-finished product 6. The object semi-finished product 6 can be taken by a clip or directly taken by the hand. Since the mold 62 is protected by the mold 61 outside, the force of the hand or the sink can be prevented from being directly applied to the body 62, thereby maintaining the precision of the body 62. A fineness ordering step 57. An additional item material 72 is replenished above the flow path 612, and (Fig. 6) 'and the item material 72 is pressurized to cause the supplementary item material 72' to be pressed against the body 62. Make the body 62 more sensitive. Of course, if the supplemental material 72' can be completely pressed into the body π:- portion, the primary and secondary materials and the compacting and compacting action of the body 62 can be performed to raise the body 62. 13 201141674 Density and helps to increase the strength of the formed article 60. (8) Performing step 58: first performing preliminary sintering, and when the sintering temperature reaches a first sintering temperature and maintaining for a suitable period of time, the mold 61 made of the adhesive 71 is burned out (burn_), leaving The body 62 of the article material 72 is finished and the initial sintering of the article is completed, and then the sintering temperature is raised to a second sintering temperature for a suitable period of time P to sinter the body 62 into the article 6 to be formed. Taking the article 60 made of a ceramic material as an example, the first sintering temperature is about a fine shed. c, the second sintering temperature is about a lot. c, but the present invention is not limited to the pottery member 6,, and the sintering temperature is not limited to the above values. 2 invention _ two money knotting process, first warming up to the mold & material loss of the degree 'such as the pre-sintering of the raw material layer to provide the initial strength required to shape the object 60 in the forming process 'and remains in the flow path The object material 72 in the 612 can be used as a supplementary material for the shrinkage of the object (6) during the final sintering, so that the phenomenon that the size of the component is excessively changed due to drying and solidification during the solidification of the material 72 can be reduced, so that the sintered object 60 can be There is high precision and density, and the object 60 manufactured each time can achieve repeatability. Since the material 72 of the above object can be a ceramic, metal or glass material, the invention is a three-dimensional printing technology, combined with ceramic powder molding technology, precision powder metallurgy technology and ceramic sintering technology. A multi-domain oriented innovation integration technology. In summary, 'the mold 61' is formed by printing the adhesive η by the printing device 2, and at the same time as the printing, the illuminating member 28 simultaneously moves and provides illumination 14 201141674 • The towel solidifies the rubber shaft 71, The processing time is shortened, and the feeding device 3 spreads the material of the object 72 inside the mold 61, and also lays the raw material in the area where the molded object 60 is required, and the portion where the molded object is not required (the outer circumference of the mold 61) does not need to be paved. In order to make the raw materials be used properly without wasting. Further, the present invention has the following advantages: + (In the nozzle 23 of the present embodiment, the piezoelectric head 23 is used, so that the resolution of the molding die 3L in the X-γ direction is greater than or equal to the instrument dpi, and the resolution in the x direction Up to 〇. (M6 mm, which is a fairly high resolution, and the mold 61 made of adhesive 71 is about the same strength as the acrylic, and the mold 61 covers the material 72' of the article to form a plus And the supporting force makes the material raw material μ 2 better in forming strength to reduce the generation of the micro slit (4), and the object material 72 can be supplemented by the flow path 612 of the visor 61 to increase the enthalpy density of the molded article. Therefore, the processing precision of the present invention Good, the surface roughness of the finished product is low, and the dimensional error is small. (2) The invention directly coats the inside of the mold 61 with a proper amount of material to reduce the waste of the raw material. The mold 6 j completely covers the material of the material, and has a branch. The effect of protecting the material raw material 72 is such that when the (four) object semi-finished product 6 is taken, the mold 61 can avoid the clamping force directly affecting the object raw material 72, so the object raw material 72 does not directly contact the external force, and the mold 61 is in the sintering process. It also has a protective effect, and the effect of the support of the mold 61 can also prevent the object original bucket 72 from being deformed by its own gravity, thereby maintaining the precision, fineness and density of the molded article 60. (3) Since the mold can be It is automatically burned out during the sintering process, so that it is not necessary to perform the demolding step additionally, and the removal of the mold 61 is quite convenient _[S.]. 15 201141674, and the invention can be used not only to produce objects having complicated shapes. Whether or not to make a simple object 60 is also applicable to the fact that the present invention does not need to consider the ease of demolding, but the above is only a limitation of the scope of the invention and the description of the invention. It is within the scope of the patents of the present invention. [Simplified description of the drawings] The preferred embodiment of the present invention, when not equivalent to the equivalent changes and modifications of the patent application form of the present invention,

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a top plan view of a preferred embodiment of a spray-assisted materialized rapid prototyping machine; Figure 2 is a left side view of the preferred embodiment; Figure 3 is a front elevational view of the preferred embodiment; 4 is a side view, mainly showing the relative relationship between a feeding device and a base device of the preferred embodiment; FIG. 5 is a step of a preferred embodiment of the rapid prototyping method of the printing aided physical material of the present invention; Flow chart; and

Figure 6 is a schematic illustration of the steps of the preferred embodiment. 16 201141674

[Description of main component symbols] 1...... .... Base unit 36-........Material recovery tank 11 ····.....Base 37. ........Switch 12• ...·...·Construction unit 4 ...........Scraper cleaning device 121···•...Construction plate 41 ·........Container 122...•...Drive rod 42.. .......Cleaning roller 123... •...Construction slot 43 .. ........ to board 13····· •... Guide rail 44··........ Collection tank 2............Printing device 45·.......Return hose 21...,•...Printing slide rail 51~ 5 8,· ♦ *Step 22·..····Slide rail connection Pieces 60-........objects 23....•...heads 6...........objects semi-finished products 231...··spray holes 61. •...moulds 24•... •... glue storage bottle 611, 61 Γ mold cut layer 25••... •...for hose 612 .......stitching space 26...· •...help·/甫613.......flow path 27···—Pressure buffer bottle 62.........body 28-·...•...illuminator 63" ........ primer 3... •...for Material device 71 ··........Adhesive agent 31·······Supply slide 72, 72' Object material 32•.... •...feed tank 8...............head cleaning device 33·...·•...feeder X ··· ........X direction 34 •... •...feed hose Y · ........Y direction 35•....·. Spreading scraper Z ........Z direction 17

Claims (1)

201141674 VII. Scope of application for patents·············································································· a nozzle slide rail disposed on the base device and movable on the nozzle rail is mounted on the nozzle print rail; and a slit layer contour shape moves toward the nozzle for constructing a single force ==, and a Move synchronously with the nozzle... The illuminating member with the viscous agent is cured, and the nozzle and the illuminating slide are driven to move along the X direction synchronously, and the nozzle and the illuminating member can also be along the printing slide. - a movement in the gamma direction different from the X direction; and L - the feeding device 'includes a side on the side of the printing slide rail and is movably mounted on the base device along the X direction a material slide, and a supply member coupled with the supply slide and used for laying an object material on the construction unit, the supply member being further movable along the supply slide Move in the Y direction. 2. The rapid-molding machine for printing-assisted materialization according to the first aspect of the patent application, wherein the printing device further comprises a glue storage bottle which is spaced apart from the nozzle and stores the adhesive. a glue connecting the glue storage bottle and the spray head and transferring the adhesive in the glue storage # to the supply hose of the spray head, and a pump connecting the glue supply tube and the glue storage bottle . 3. The rapid prototyping machine according to claim 2, wherein the printing device further comprises a connection between the pump and the nozzle and is used for connecting the rubber hose to the nozzle 18 201141674 A pressure regulating buffer bottle that heats the adhesive. 4. The rapid-molding machine for printing-assisted materialization according to the scope of patent application 帛1, wherein the supply device further comprises a combination with the supply slide and is used for laying on the construction unit The material of the material is flattened by a scraping scraper. 5. The jet forming machine according to claim 4, further comprising a m...w speed-3 to knife cleaning device, the blade cleaning device comprising a crucible, and a cleaning device for picking up the cleaning in the container a liquid, and rotatably abutting the squeegee blade to clean the cleaning roller of the screed squeegee 0. 6. The stencil assisted materialized (4) forming machine according to the scope of claim fi, wherein the feeding device The utility model also comprises a feeding trough for accommodating the (four) j material, a feeding brother connecting the feeding trough and the feeding member, a switch for controlling the feeding of the feeding hose or not. And a 7-construction unit and (4) a raw material recovery tank for recycling the material of the article. According to the scope of the patent application 丨 ^ ^ 迈 之 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 辅助 H H H H H H H H H H H H H H H H H H H H A plurality of nozzle holes of the nozzle, a waste plastic collecting tank spaced apart from each other, and a waste material collecting groove, and a waste pipe connecting the nozzle and conveying the waste collecting tank. The adhesive is directed toward the waste rubber by the nozzle. 8. According to the scope of the application of the scope of the invention, the base device further comprises a base for assisting physicalization, including a base for the construction unit, 19 201141674 And two guide rails spaced apart from each other and extending along the x direction, slid on the base, the print slide rail and the feed slide are movably mounted on the guide rails, the construction unit Also included is a construction panel that can be moved up and down relative to the base for laying the aforementioned adhesive and article materials. ° 9. A rapid prototyping method for printing aided materialization for forming an object comprising: (A) a shape along the shape of the cut layer by means of printing according to a shape of the cut contour of the object to be formed And the printing is glued together! The printed adhesive forms a die cut that defines a paving space, and provides light to cure the adhesive while printing; (B) laying in the paving space (C) repeating steps (A) and (B) to form a layer of semi-finished products together with a layer of layers stacked from bottom to top, so that the semi-finished product has a coating on the outside and is glued a mold made of the agent, and a body filled in the mold and made of the material of the object; and (D) sintering the semi-finished product to maintain a temperature at a first sintering temperature for a period of time The mold made of the agent is burned out, leaving only the body made of the material of the object, and then raising the temperature to a second sintering temperature to sinter the body into the object to be formed. 10. The rapid prototyping method according to the ninth aspect of the patent application, wherein the adhesive is a photosensitive resin material. 11. The rapid prototyping method according to claim 10, wherein the adhesive is a UV curable adhesive or a halogen light solid 20 201141674. 12. The rapid prototyping method according to claim 9 of the patent application, further comprising a step (E) between the step (C) and the step (D), wherein the step (E) is One of the flow passages replenishes the material of the article, and pressurizes the supplemental material to cause the supplemental material to be squeezed out of the body to compact the body. The rapid prototyping method according to the ninth aspect of the patent application scope, wherein the material of the object is ceramic powder, metal powder enamel, glass powder, ceramic powder, metal powder, or glass. Mortar. ” twenty one