WO2017163431A1 - 3次元積層造形装置、3次元積層造形装置の制御方法および3次元積層造形装置の制御プログラム - Google Patents
3次元積層造形装置、3次元積層造形装置の制御方法および3次元積層造形装置の制御プログラム Download PDFInfo
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- WO2017163431A1 WO2017163431A1 PCT/JP2016/059766 JP2016059766W WO2017163431A1 WO 2017163431 A1 WO2017163431 A1 WO 2017163431A1 JP 2016059766 W JP2016059766 W JP 2016059766W WO 2017163431 A1 WO2017163431 A1 WO 2017163431A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
- B22F12/37—Rotatable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/188—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
- B29C64/194—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control during lay-up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
- B22F12/33—Platforms or substrates translatory in the deposition plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the present invention relates to a control method for a three-dimensional additive manufacturing apparatus, a control method for the three-dimensional additive manufacturing apparatus, and a control program for the three-dimensional additive manufacturing apparatus.
- Patent Document 1 discloses a technique for removing a surface layer and an unnecessary part of a modeled object in the middle of formation of a modeled object in a powder bed type three-dimensional layered modeling apparatus.
- An object of the present invention is to provide a technique for solving the above-described problems.
- a three-dimensional additive manufacturing apparatus Material injection means for injecting the material of the three-dimensional layered object on a modeling table on which the three-dimensional layered object is formed; A light irradiation means for irradiating the injected material with light; Cutting means for cutting the beads formed by melting and solidifying the material irradiated with the light beam; With The cutting means cuts the upper surface of the bead at least once during a plurality of modeling steps by the material injection means and the light beam irradiation means.
- a method for controlling a three-dimensional additive manufacturing apparatus includes: A material injection step of injecting a material of the three-dimensional layered object on a modeling table on which the three-dimensional layered object is formed; A light irradiation step for irradiating the injected material with light; A cutting step of cutting a bead formed by melting and solidifying the material irradiated with the light beam; and Including In the cutting step, the upper surface of the bead is cut at least once during a plurality of modeling steps by the material injection step and the light beam irradiation step.
- a control program for a three-dimensional additive manufacturing apparatus is: A material injection step of injecting a material of the three-dimensional layered object on a modeling table on which the three-dimensional layered object is formed; A light irradiation step for irradiating the injected material with light; A cutting step of cutting a bead formed by melting and solidifying the material irradiated with the light beam; and To the computer, In the cutting step, the upper surface of the bead is cut at least once during a plurality of modeling steps by the material injection step and the light beam irradiation step.
- modeling accuracy can be improved without finishing.
- the three-dimensional additive manufacturing apparatus 100 is an apparatus that forms a three-dimensional additive object by injecting a material 130 onto the forming table 120 and irradiating the injected material 130 with a light beam 140.
- the three-dimensional additive manufacturing apparatus 100 includes a material injection unit 101, a light beam irradiation unit 102, a cutting unit 103, and a control unit 104.
- the material injection unit 101 injects the material 130 of the three-dimensional layered object 150 onto the modeling table 120 on which the three-dimensional layered object 150 is formed.
- the light beam irradiation unit 102 irradiates the material 130 with a light beam 140.
- the cutting unit 103 cuts the bead 160 formed by melting and solidifying the material 130 irradiated with the light beam 140.
- the cutting unit 103 cuts the upper surface of the bead with a dimension less than the stacking height and 1 ⁇ 2 or less of the bead thickness.
- the control unit 104 controls injection of the material 130 by the material injection unit 101, irradiation of the light beam 140 by the light beam irradiation unit 102, and cutting of the bead 160 by the cutting unit 103.
- FIGS. 1-10 a three-dimensional additive manufacturing apparatus according to a second embodiment of the present invention will be described with reference to FIGS.
- an LMD (Laser Metal Deposition) type three-dimensional additive manufacturing apparatus will be described as an example.
- the three-dimensional additive manufacturing apparatus 200 controls the output of the light beam 240 and the injection amount of the material 230, adjusts the width and height of the bead 260, and selectively uses high-efficiency modeling and high-precision modeling.
- the three-dimensional layered object 250 can be formed.
- high-efficiency modeling refers to forming a three-dimensional layered object 250 by forming a bead 260 having a relatively large width and height
- high-precision modeling is a bead having a relatively small width and height. It means that the three-dimensional layered object 250 is formed by forming 260.
- FIG. 2 is a diagram for explaining the configuration of the three-dimensional additive manufacturing apparatus according to the present embodiment.
- the three-dimensional additive manufacturing apparatus 200 includes a material injection unit 201, a light beam irradiation unit 202, a cutting unit 203, a control unit 204, and an inclined unit 205.
- the material injection unit 201 injects a material 230 such as metal powder onto the modeling table 220.
- the three-dimensional layered object 250 is modeled on the modeling table 220.
- the material 230 is not limited to metal powder, and may be, for example, resin powder.
- the light beam irradiation unit 202 irradiates the material 230 with a light beam 240 such as a laser beam or an electron beam emitted from the light beam irradiation unit 202 from the tip portion of the material injection unit 201.
- the light beam 240 is not limited to a laser beam or an electron beam, and may be a light beam having other wavelengths.
- the material 230 irradiated with the light beam 240 such as laser light is melted by the heat (energy) applied from the light beam 240 to form a molten pool (molten pool). Thereafter, the molten pool is cooled and solidified to form a bead 260.
- the material 230 is laminated by repeating the injection of the material 230 and the irradiation of the light beam 240, and the three-dimensional layered object 250 is formed.
- the cutting unit 203 cuts the surface of the bead 260 formed by melting and solidifying the material 230 by the heat given by the light beam 240.
- a bead 260 formed by melting and solidifying the material 230 has an elliptical cross-sectional shape.
- the cutting unit 203 cuts the surface of the bead 260, for example, the upper surface or the side surface, and the surface (upper surface or side surface) of the bead 260 is, for example, horizontal to the modeling surface of the modeling table 220 or perpendicular to the stacking direction. To do.
- the cutting amount of the cutting part 203 cuts the upper surface of the bead 260 is less than the stacking height and is less than or equal to 1/2 the thickness of the bead 260.
- the present invention is not limited to this. Any amount may be cut.
- the three-dimensional additive manufacturing apparatus 200 moves the modeling table 220 so that the bead 260 is positioned below the cutting unit 203.
- the cutting part 203 may be moved so that the bead 260 is positioned below the cutting part 203.
- the cutting unit 203 is, for example, a cutting tool such as an end mill, but is not limited thereto, and may be any tool as long as the surface of the bead 260 can be cut.
- the control unit 204 controls the injection of the material 230 and the irradiation of the light beam 240 and the cutting of the bead 260. For example, when the stacking for one layer is completed by the ejection of the material 230 by the material ejection unit 201 and the irradiation of the light beam 240 by the light beam irradiation unit 202, the control unit 204 may perform the cutting by the cutting unit 203. Moreover, the control part 204 may perform cutting by the cutting part 203, when lamination
- the inclination part 205 inclines the modeling stand 220.
- FIG. For example, when the material 230 having a high reflectance of the light beam 240 is used as the material 230 of the three-dimensional layered object 250, the light beam 240 applied to the material 230 is reflected. Then, the reflected light that is reflected damages a condensing lens (not shown) in the material injection unit 201, an oscillator (not shown) of the light beam 240, and the like. Therefore, the modeling table 220 is tilted by the inclined portion 205 so that the reflected light does not enter the material injection unit 201 so that the reflected light does not enter the material injection unit 201. Further, the modeling table 220 is also tilted when modeling a three-dimensional layered object 250 having a complicated shape.
- FIG. 3 is a diagram showing the shape of the bead 260 formed by the three-dimensional additive manufacturing apparatus 200.
- the bead 260 has an elliptical shape when viewed from the side.
- the major axis of this ellipse corresponds to the stacking width
- the minor axis corresponds to the bead thickness
- the portion protruding above the upper surface of the modeling table 220 corresponds to the stacking height.
- the three-dimensional additive manufacturing apparatus 200 forms a three-dimensional additive manufacturing object by stacking a plurality of such beads 260.
- FIG. 4 is a diagram for explaining an example of modeling of the three-dimensional layered object 250 by the three-dimensional layered object modeling apparatus 200 according to the present embodiment.
- the three-dimensional additive manufacturing apparatus 200 forms a bead 260 for one layer (401 in FIG. 4), and then cuts the upper surface of the bead 260 by a predetermined amount by the cutting unit 203 (402 in FIG. 4).
- the predetermined amount is, for example, 1/2 or more of the stacking height, but is not limited thereto. In this way, by cutting half or more of the stacking height, it is possible to cut off the elliptical curved portion 261 and leave the portion 262 close to the elliptical straight line.
- bead 260 which cut off the upper surface in this way has a substantially vertical side surface.
- the three-dimensional additive manufacturing apparatus 200 forms a new bead 260 on the bead 260 that has been cut and has a substantially vertical side surface (403 in FIG. 4), and then a new one is formed by the cutting unit 203.
- the upper surface of the bead 260 formed in this step is cut (404 in FIG. 4).
- the three-dimensional layered manufacturing apparatus 200 models the next bead 260 (405 in FIG. 4).
- the three-dimensional additive manufacturing apparatus 200 can stack a plurality of beads 260 whose side surfaces are substantially vertical, and can form a three-dimensional additive manufacturing object 250 with high side surface accuracy.
- the three-dimensional layered object 250 obtained by performing the cutting process with the three-dimensional layered object modeling apparatus 200 has a surface roughness of about 1 as compared with the three-dimensional layered object obtained without the cutting process. / 10.
- the timing of the cutting process has been described as the timing of the cutting process.
- the timing of the cutting process is not limited to this, for example, every predetermined number of layers (n layers). Cutting may be performed.
- FIG. 5 is a diagram illustrating a three-dimensional layered object modeled without cutting by the three-dimensional layered object modeling apparatus 200 according to the present embodiment and a three-dimensional layered object modeled through the cutting process. . Since the three-dimensional layered object formed without performing the cutting process by the three-dimensional layered object modeling apparatus 200 is formed by stacking the beads 260 having the elliptical cross-sectional shape, the side surface modeling roughness is increased (see FIG. 5 of 501).
- the three-dimensional layered object formed by performing the cutting process with the three-dimensional layered object modeling apparatus 200 is formed by stacking the beads 260 whose side surfaces are substantially vertical, the side surface roughness is small. It becomes a thing (502 of FIG. 5).
- FIGS. 6A to 6C are diagrams for explaining problems of another example of modeling of the three-dimensional layered object 250 by the three-dimensional layered object modeling apparatus 200 according to the present embodiment.
- the material 230 of the three-dimensional layered object 250 is a material 230 having a high reflectance of the light beam 240 such as copper (Cu), aluminum (Al), or iron (Fe), as shown in FIG. It is necessary to perform additive manufacturing by tilting.
- the reflected light 610 reflected from the molten pool 620 formed by melting the material 230 by the heat of the light beam 240 is incident on the material injection unit 201, and the light beam oscillator of the light beam 240. This is because the condensing lens of the light beam 240 is damaged.
- FIG. 6A when the modeling table 220 is tilted, as shown in FIG. 6B, a bead 260 that is offset due to the influence of gravity is formed. Then, as shown in FIG. 6C, when modeling is continued in a state where the deviation is generated in the bead 260, the deviation is accumulated and a three-dimensional layered object 250 having a large modeling error is modeled.
- FIG. 7 is a diagram for explaining another example of modeling of the three-dimensional layered object 250 by the three-dimensional layered object modeling apparatus 200 according to the present embodiment.
- the modeling table 220 is drawn horizontally on the paper surface, but is actually inclined.
- the formed bead 260 is offset. Therefore, as shown by 702 in FIG. 7, for example, after the lamination of the material 230 for one layer is completed, the formed bead 260 is cut by the cutting unit 203. Then, as shown at 703 in FIG. 7, the next material 230 is laminated on the shaved bead 260. By repeating these procedures, even if the modeling table 220 is tilted, the three-dimensional layered object 250 can be modeled with high accuracy and high efficiency.
- the material injection unit 201 and the cutting unit 203 may be tilted while the modeling table 220 is kept horizontal. Further, the formed bead 260 may be scraped by adjusting the inclination of the modeling table 220 after modeling and positioning the cutting unit 203 and the modeling table substantially vertically.
- FIG. 8A is a diagram illustrating an example of a three-dimensional layered object 250 having a structure that is advantageous for modeling by the three-dimensional layered modeling apparatus 200 according to the present embodiment.
- FIG. 8B is a diagram illustrating another example of the three-dimensional layered object 250 having a structure that is advantageous for modeling by the three-dimensional layered modeling apparatus 200 according to the present embodiment.
- the portions indicated by arrows 801 and 802 are intended to be cut after the completion of modeling.
- it was difficult to cut because the cutting tool did not reach.
- the three-dimensional layered object 250 having a structure advantageous for modeling by the three-dimensional layered object modeling apparatus 200 according to the present embodiment is not limited to the structure shown here.
- the three-dimensional layered object 250 having a more complicated structure or a three-dimensional layered object 250 having a simple structure may be used.
- FIG. 9 is a flowchart for explaining the processing procedure of the three-dimensional additive manufacturing apparatus 200 according to the present embodiment.
- the three-dimensional additive manufacturing apparatus 200 acquires a modeling model of the three-dimensional additive manufacturing object 250, and generates modeling data such as the type of the material 230 and the intensity of the light beam 240 to be irradiated based on the acquired modeling model. get.
- step S903 the three-dimensional additive manufacturing apparatus 200 determines whether the modeling table 220 needs to be tilted based on the acquired modeling data.
- the three-dimensional additive manufacturing apparatus 200 determines the necessity of the inclination of the modeling table 220 based on, for example, the acquired modeling data based on whether or not the material 230 is the material 230 having a high reflectance.
- the three-dimensional additive manufacturing apparatus 200 proceeds to the next step S905.
- step S905 the three-dimensional additive manufacturing apparatus 200 tilts the modeling table 220 by a predetermined angle.
- the three-dimensional additive manufacturing apparatus 200 proceeds to step S907.
- step S907 the three-dimensional additive manufacturing apparatus 200 performs additive manufacturing for one layer.
- step S909 the three-dimensional additive manufacturing apparatus 200 cuts the surface, for example, the upper surface, of the formed bead 260 by a predetermined amount.
- step S911 the three-dimensional additive manufacturing apparatus 200 determines whether the additive manufacturing of the three-dimensional additive manufacturing object 250 has been completed. When the layered modeling is completed, the three-dimensional layered modeling apparatus 200 ends the process. When the additive manufacturing is not completed, the three-dimensional additive manufacturing apparatus 200 repeats the steps after step S907.
- the modeling time can be shortened while modeling a highly accurate three-dimensional layered object.
- an intermediate layer when a three-dimensional layered object in which a plurality of materials having weak bonding strength are bonded is layered, a three-dimensional layered object in which different materials are bonded together while reducing the thickness of the intermediate layer is obtained. be able to.
- a three-dimensional layered object is formed using a material having a high light reflectivity, a bead with little offset can be formed even if the modeling table is inclined, so that a three-dimensional layered object with high modeling accuracy is obtained. Can do.
- the present invention may be applied to a system composed of a plurality of devices, or may be applied to a single device. Furthermore, the present invention can also be applied to a case where an information processing program that implements the functions of the embodiments is supplied directly or remotely to a system or apparatus. Therefore, in order to realize the functions of the present invention on a computer, a program installed on the computer, a medium storing the program, and a WWW (World Wide Web) server that downloads the program are also included in the scope of the present invention. . In particular, at least a non-transitory computer readable medium storing a program for causing a computer to execute the processing steps included in the above-described embodiments is included in the scope of the present invention.
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Abstract
Description
3次元積層造形物が造形される造形台上に、前記3次元積層造形物の材料を噴射する材料噴射手段と、
噴射された材料に光線を照射する光線照射手段と、
前記光線を照射した前記材料が、溶融し、凝固して形成されるビードを切削する切削手段と、
を備え、
前記切削手段は、前記ビードの上面を前記材料噴射手段と前記光線照射手段とによる複数回の造形工程中に少なくとも1回切削する。
3次元積層造形物が造形される造形台上に、前記3次元積層造形物の材料を噴射する材料噴射ステップと、
噴射された材料に光線を照射する光線照射ステップと、
前記光線を照射した前記材料が、溶融し、凝固して形成されるビードを切削する切削ステップと、
を含み、
前記切削ステップにおいて、前記ビードの上面を前記材料噴射ステップと前記光線照射ステップとによる複数回の造形工程中に少なくとも1回切削する。
3次元積層造形物が造形される造形台上に、前記3次元積層造形物の材料を噴射する材料噴射ステップと、
噴射された材料に光線を照射する光線照射ステップと、
前記光線を照射した前記材料が、溶融し、凝固して形成されるビードを切削する切削ステップと、
をコンピュータに実行させ、
前記切削ステップにおいて、前記ビードの上面を前記材料噴射ステップと前記光線照射ステップとによる複数回の造形工程中に少なくとも1回切削する。
本発明の第1実施形態としての3次元積層造形装置100について、図1を用いて説明する。3次元積層造形装置100は、造形台120に材料130を噴射し、噴射された材料130に光線140を照射して3次元積層造形物を造形する装置である。図1に示すように、3次元積層造形装置100は、材料噴射部101と、光線照射部102と、切削部103と、制御部104とを含む。
次に本発明の第2実施形態に係る3次元積層造形装置について、図2乃至図9を用いて説明する。なお、3次元積層造形装置200としては、LMD(Laser Metal Deposition)型の3次元積層造形装置を例に説明をする。また、3次元積層造形装置200は、光線240の出力や、材料230の噴射量を制御して、ビード260の幅や高さを調整して、高能率造形と、高精度造形とを使い分けて3次元積層造形物250を造形することができる。ここで、高能率造形とは、幅や高さが比較的大きいビード260を形成して3次元積層造形物250を造形することいい、高精度造形とは、幅や高さが比較的小さいビード260を形成して3次元積層造形物250を造形することをいう。
以上、実施形態を参照して本願発明を説明したが、本願発明は上記実施形態に限定されるものではない。本願発明の構成や詳細には、本願発明のスコープ内で当業者が理解し得る様々な変更をすることができる。また、それぞれの実施形態に含まれる別々の特徴を如何様に組み合わせたシステムまたは装置も、本発明の範疇に含まれる。
Claims (5)
- 3次元積層造形物が造形される造形台上に、前記3次元積層造形物の材料を噴射する材料噴射手段と、
噴射された材料に光線を照射する光線照射手段と、
前記光線を照射した前記材料が、溶融し、凝固して形成されるビードを切削する切削手段と、
を備え、
前記切削手段は、前記ビードの上面を前記材料噴射手段と前記光線照射手段とによる複数回の造形工程中に少なくとも1回切削する3次元積層造形装置。 - 前記切削手段は、前記ビードの積層高さの1/2以上を切削する請求項1に記載の3次元積層造形装置。
- 前記造形台を傾斜させる傾斜手段をさらに備える請求項1または2に記載の3次元積層造形装置。
- 3次元積層造形物が造形される造形台上に、前記3次元積層造形物の材料を噴射する材料噴射ステップと、
噴射された材料に光線を照射する光線照射ステップと、
前記光線を照射した前記材料が、溶融し、凝固して形成されるビードを切削する切削ステップと、
を含み、
前記切削ステップにおいて、前記ビードの上面を前記材料噴射ステップと前記光線照射ステップとによる複数回の造形工程中に少なくとも1回切削する3次元積層造形装置の制御方法。 - 3次元積層造形物が造形される造形台上に、前記3次元積層造形物の材料を噴射する材料噴射ステップと、
噴射された材料に光線を照射する光線照射ステップと、
前記光線を照射した前記材料が、溶融し、凝固して形成されるビードを切削する切削ステップと、
をコンピュータに実行させ、
前記切削ステップにおいて、前記ビードの上面を前記材料噴射ステップと前記光線照射ステップとによる複数回の造形工程中に少なくとも1回切削する3次元積層造形装置の制御プログラム。
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US15/125,454 US20180141159A1 (en) | 2016-03-25 | 2016-03-25 | Three-dimensional laminating and shaping apparatus, control method of three-dimensional laminating and shaping apparatus, and control program of three-dimensional laminating and shaping apparatus |
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JP2020066027A (ja) * | 2018-10-24 | 2020-04-30 | 株式会社神戸製鋼所 | 積層造形物の製造方法及び積層造形物 |
US11766824B2 (en) | 2017-05-26 | 2023-09-26 | Ihi Corporation | Apparatus for producing three-dimensional multilayer model, method for producing three-dimensional multilayer model, and flaw detector |
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CN108248011B (zh) * | 2017-12-20 | 2019-08-27 | 广东工业大学 | 一种激光冲击锻打与激光切割复合增材制造装置及方法 |
US11167375B2 (en) | 2018-08-10 | 2021-11-09 | The Research Foundation For The State University Of New York | Additive manufacturing processes and additively manufactured products |
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