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WO2004042481A1 - Procede et systeme de conception de moule - Google Patents

Procede et systeme de conception de moule Download PDF

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Publication number
WO2004042481A1
WO2004042481A1 PCT/SG2002/000226 SG0200226W WO2004042481A1 WO 2004042481 A1 WO2004042481 A1 WO 2004042481A1 SG 0200226 W SG0200226 W SG 0200226W WO 2004042481 A1 WO2004042481 A1 WO 2004042481A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
map
cavity
core
faces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SG2002/000226
Other languages
English (en)
Inventor
Peiling Liu
Yiqiang Lu
Yin Tai Ao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agency for Science Technology and Research Singapore
Singapore Institute of Manufacturing Technology
Original Assignee
Agency for Science Technology and Research Singapore
Singapore Institute of Manufacturing Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency for Science Technology and Research Singapore, Singapore Institute of Manufacturing Technology filed Critical Agency for Science Technology and Research Singapore
Priority to PCT/SG2002/000226 priority Critical patent/WO2004042481A1/fr
Priority to AU2002368320A priority patent/AU2002368320A1/en
Publication of WO2004042481A1 publication Critical patent/WO2004042481A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/005—Moulds or cores; Details thereof or accessories therefor characterised by the location of the parting line of the mould parts
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3835—Designing moulds, e.g. using CAD-CAM
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B29C2045/0034—Mould parting lines
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45204—Die, mould making
    • 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
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the present invention relates generally to a method and system for designing a mold. Specifically, the present invention relates to a method for generating a mold for use in an injection molding process.
  • a mold is typically used for producing a plastic part reproduction of an object.
  • the mold conventionally comprises a mold core and mold cavity cooperating to form a channel for molding the plastic part reproduction.
  • the design of the mold comprising of the mold core and the mold cavity, using a conventional mold design system requires a user to manually identify at least one parting line for generating a parting surface. This process is time-consuming and vulnerable to errors made by the user. As the geometry of the parting surface affects the surface quality of plastic part reproduction, the parting surface for the mold has to be accurately generated.
  • Nishiyama describes an injection mold design system for correcting a profile of a product to be fabricated into a releasable profile from a mold. An injection mold is then designed based on the corrected product shape.
  • the injection mold design system provides an inputting means for correcting the product shape or the mold profile.
  • the mold is manually designed and is dependent solely on the intuition and experience of a user of the mold design system.
  • Conventional mold design system also requires the user to manually define hole-lines for defining apertures that exist in the object. The hole-lines have to be manually segregated from other parting lines to enable a hole-filling algorithm to automatically fill the identified apertures.
  • An embodiment of the invention automatically detects at least one parting line for an object and automatically detects surface features and the ejection axis for facilitating the design and generation of a mold.
  • the use of z-map based representation for the object facilitates moldability analysis of the generated mold.
  • the embodiment of the invention modifies the opacity of a computer image of the object further facilitates analysis of the mold by a user.
  • a mold design method for generating a mold cavity and a mold core comprising the steps of: generating an extended z-map for an object having a plurality of faces, the extended z-map comprising a first z-map and a second z-map, and each of the plurality of faces having at least one geometric feature; determining the at least one geometric feature of each of the plurality of faces; analysing the moldability of the object from the at least one geometric feature of each of the plurality of faces, the moldability of the object indicating feasibility of generating the mold cavity and the mold core for molding the object; and generating the mold cavity and the mold core of the object in response to the object being moldable upon analysing the moldability of the object.
  • a mold design system for generating a mold cavity and a mold core
  • the mold design system comprising: means for generating an extended z-map for an object having a plurality of faces, the extended z-map comprising a first z-map and a second z-map, and each of the plurality effaces having at least one geometric feature; means for determining the at least one geometric feature of each of the plurality of faces; means for analysing the moldability of the object from the at least one geometric feature of each of the plurality of faces, the moldability of the object indicating feasibility of generating the mold cavity and the mold core for molding the object; and means for generating the mold cavity and the mold core of the object in " response to the object being moldable upon analysing the moldability of the object.
  • FIG. 1 shows a process flow diagram of a mold design method according to an embodiment of the invention
  • FIG. 2 shows a front sectional view of an object designed and generated using the mold design method of FIG. 1 ;
  • FIG. 3 shows a front sectional view of the object of FIG. 2 represented by an extended z-map generated by a mold design system implementing the mold design method of FIG. 2;
  • FIG. 4 shows a process flow diagram of generating an extended z-map in a step of the mold design method of FIG. 1;
  • FIG. 5 shows a process flow diagram of determining geometric features of the object of FIG. 2 in a step of the mold design method of FIG. 1;
  • FIG. 6 shows a process flow diagram of generating a mold core and a mold cavity for the object of FIG. 2 in a step of the mold design method of FIG. 1;
  • FIG. 7 shows a plan view a bounding box surrounding a parting line of the object of FIG. 2;
  • FIG. 8 shows a plan view of the bounding box of FIG. 7 with a pair of cut-planes;
  • FIG. 9 shows a plan view of the bounding box of FIG. 7 with sub-surfaces extruded from the parting lines of FIG. 7;
  • FIG. 10 shows a plan view of a parting surface generated from the sub-surfaces of FIG. 9;
  • FIG. 11 shows a process flow diagram of generating the parting surface of FIG. 10 for the object of FIG. 2;
  • FIG. 12 shows a process flow diagram of analysing the mold core and the mold cavity generated in the process of FIG. 6 in a step of the mold design method of FIG. 1;
  • FIG. 13 shows a perspective view of a cube for illustrating the process of analysing the mold core and the mold cavity of FIG. 12;
  • FIG. 14 shows a perspective view of the cube of FIG. 13 employing a "see through” effect.
  • FIG. 1 shows a process flow diagram of the mold design method 100
  • FIG. 2 which shows a first front sectional view of an object 26,
  • FIG. 3 which shows a second front sectional view of the object 26.
  • the mold design method 100 is implemented by a mold design system (not shown) for generating a mold cavity 22 and a mold core 24. Reproductions of the object 26 are made using the mold cavity 22 and the mold core 24.
  • the object 26 has a surface 28 formed by a plurality of faces 30.
  • an extended z-map 32 is generated for the object 26 in a step 102 of FIG. 1.
  • the extended z-map 32 is generated using an object representation method in the step 102.
  • the mold design system obtains geometric data for the object 26 in a step 122 of FIG. 4.
  • FIG. 4 shows a process flow diagram of generating the extended z-map 32.
  • the geometric data for example 3-D coordinates, is representative of the object 26.
  • a z-map plane 34 is first generated in a step 124.
  • the geometric data of the object 26 is preferably represented in one of standard template library (STL) format or XGL format.
  • STL format provides a standard template for representing parameters of the object 26.
  • the object 26 and its parameters are easily recognisable for data conversion as declarations within an STL data set which abides by a standard format.
  • XGL is a file format designed for representing 3D information for the purpose of visualisation.
  • the XGL format which uses the XML format, substantially captures all 3D information that can be rendered by Silicon Graphics Incorporated' s (SGI) OpenGL rendering library. Similar to the STL format, the XGL format is typically used when data must be exchanged between two graphics systems.
  • a first z-map 36 and a second z-map 38 are generated from the geometric data of the object 26 by first extracting mesh data from the geometric data.
  • the mesh data is generally indicative of the surface 28 of the object 26.
  • Using one of the STL or XGL format to represent the geometric data of the object 26 facilitates the extraction of the mesh data from the geometric data.
  • the first z-map 36 and the second z-map 38 are generated with reference to the z-map plane 34.
  • Each of the first and second z-maps 36/38 has a plurality of primary grid points 40, each of the plurality of primary grid points 40 having a z-value, being indicative of at least one of the plurality of faces 30.
  • the plurality of primary grid points 40 are coincident with a corresponding the z-map plane 34.
  • an extended map 42 is generated for each of the first and second z-map 36/38 of the z-map plane 34.
  • the extended map 42 comprises' a plurality of secondary grid point 44 spaced between at least one pair of primary grid points 40.
  • Each secondary grid points 44 has an e- value being indicative of at least one of the plurality of faces 30 having intricate features.
  • the extended map 42 provides for higher resolution for representing the intricate features.
  • the mold design method 100 requires that at least one geometric feature be determined for each of the plurality of faces 30 in a step 104 as shown in FIG. 1, which shows a process flow diagram of determining the at least one geometric feature.
  • step 104 at least one of the plurality of faces 30 indicated by the first z-map 36 is grouped to form a cavity face 48 in a step 132 of FIG. 5.
  • step 134 at least one of the plurality of faces 30 indicated by the second z-map 38 is grouped to form a core face 50.
  • the mold design system proceeds to analyse the moldability of the object 26 in a step 106 of FIG. 1 in response to the geometric feature, comprising the cavity face 48 and the core face 50 identified in the step 104. In the step 106, removability of the object 26 from the mold cavity 22 and mold core
  • the removability of the object 26, determined in relation to the first and second z-maps 36/38, is the ability for the object to be removed from the mold cavity 22 and mold core 24 without the mold cavity 22 or the mold core 24 obstructing any of the plurality of faces 30 of the object 26.
  • the step 106 includes identifying undercut features from the plurality of faces 30.
  • the undercut features are identified as at least one face 30 constituting the surface 28 of the object 26 that is not indicated by one of the first z-map 36 and the second z-map 38. It is essential to identify undercut features as an injection molding machine (not shown) requires sliders and lifters to produce the undercut features. The lifters and sliders translate into higher production cost.
  • the step 106 includes identifying crossover faces (not shown) from the plurality of faces 30.
  • Each crossover face is one of the plurality of faces 30 extending between the cavity face 48 and the core face 50 and being grouped to form both the cavity face 48 and the core face 50.
  • the mold design system proceeds to generate the mold cavity 22 and the mold core 24 in a step 108 of FIG. 1 in response to the object 26 being moldable as analysed in the step 106.
  • a process flow diagram of generating the mold cavity 22 and the mold core 24 in the step 108 is shown in FIG. 6.
  • the mold design system identifies at least one parting line 60 from the object 26 in a step 140 of FIG. 6.
  • an ejection axis 61 is generated with reference to the z-map plane 34 as shown in FIG. 2 with the ejection axis 61 being generally perpendicular to the z- map plane 34.
  • the ejection axis 6i is an axis along which a molded object (not shown) received onto a mold is removable from the mold.
  • the at least one parting line 60 is generated in the step 140 using a parting line algorithm.
  • Each of the at least one parting line 60 defines a portion of a periphery of an interface between the cavity face
  • Each of the at least one parting line 60 is categorised as one of an external parting line and an internal parting line in a step 142.
  • the mold design system identifies a presence of at least one aperture in the object 26 in a step 144.
  • the at least one aperture is identified from the parting line 60 being categorised as the internal parting line.
  • Each internal parting line forms a periphery of a corresponding one aperture.
  • the at least one aperture is filled to eliminate the corresponding at least one aperture in a step 145 of FIG. 6.
  • the at least one aperture is filled using a known filling algorithm pre-defined in the mold design system.
  • the mold design system constructs a parting surface 68 in a step 146, with the parting surface 68 being constructed from the at least one parting line 60 being categorised as an external parting line.
  • the parting surface 68 is generated by first constructing a bounding box 69a in a step 160 of FIG. 11 which shows a process for generating the parting surface 68 in the step 146.
  • the bounding box 69a comprises of four lines interconnected to form a rectangular periphery.
  • a vertex 69b is formed coincident with a point where an extremity of one line connects with an extremity of another line.
  • Four vertices 69b are formed from the four lines of the bounding box 69a.
  • the bounding box 69a is planar and generally parallel to the at least one parting line 60.
  • the bounding box 69a is dimensioned for completely receiving the at least one parting line 60 therein.
  • a pair of cut-planes 69c are generated and positioned within the bounding box 69a as shown in FIG. 8.
  • the pair of cut-planes 69c is generally perpendicular to a plane formed by the lines of the bounding box 69a.
  • Each cut-plane 69c extends between each pair of vertices 69b having the furthest distance apart.
  • Each cut-plane 69c intersects the at least one parting line 60 at two transition points 69d, with the pair of cut-planes 69c providing four transition points 69d.
  • the transition points 69d segregates the at least one parting line 60 into four boundary lines, each boundary line extending between each adjacent pair of transition points 69d.
  • a sub-surface 69e is extruded from each boundary line in outwardly opposing directions in a step 164 of FIG. 11.
  • Each of the extruded subsurface 69e extends from the boundary line to the corresponding line of the bounding box 69a.
  • the sub-surfaces 69e are then combined to form the parting surface 68 by extruding and joining adjacent sub-surfaces 69e as shown in FIG. 10 in a step 166 of FIG. 11.
  • the mold design system forms the mold core 24 on a core block 70 and the mold cavity 22 in the cavity block 72 in a step 148.
  • the core block 70 and cavity block 72 are shown in FIG. 2.
  • the mold cavity 22 is constructed from the parting surface 68 and cavity face 48 with the mold cavity 22 being generally a cavity formed in the cavity block 72, and the mold cavity 22 having a surface profile of the cavity face 48.
  • the mold core 24 is constructed from the parting surface 68 and the core face 50 with the mold core 24 being generally a protrusion formed on the core block 70, and the mold core 24 having a surface profile of the core face- 50.
  • the mold design method 100 further includes a step 110 of FIG. 1, of analysing the generated mold cavity 22 and mold core 24 by a user.
  • FIG. 12 shows a process flow diagram of analysing the generated mold cavity 22 and the mold core 24 according to the step 110.
  • the mold design system receives at least one input from the user in a step 150.
  • the at least one input includes at least one of a zoom factor, an object orientation and an object position.
  • the mold design system renders an image of the mold cavity 22 and the mold core 24 in accordance to the at least one input received from the user.
  • the mold design system displays the rendered image on a display device 78, for example a computer monitor, for viewing and analysis by the user in a step 154.
  • the at least one input received from the user in the step 150 further includes an opacity index.
  • the images of the mold cavity 22 and the mold core 24 are further rendered, in the step 152, with an opacity defined by the opacity index.
  • the core block 70 and cavity block 72 is rendered transparent in the image for display to the user, thereby allowing the user to "see-through" the core block 70 and the cavity block 72 for facilitating the analysis of both the mold cavity
  • the mold cavity 22 and the mold core 24 are rendered opaque for facilitating analysis of the mold cavity 22 and the mold core 24.
  • the parting surface 68 is displayed as a wire-frame model on the display device 78 in order not to obstruct the mold core 24 and mold cavity 22 from the view of the user.
  • FIG. 13 shows a perspective view of a cube 200 with a corner 202 hidden from view.
  • solid lines indicate visible lines and dashed lines indicate hidden lines.
  • dashed lines indicate hidden lines.
  • the mold cavity 22 and the mold core 24 are rendered in an exploded view in response to receiving further input from the user.
  • the core block 70 is displaced a distance from the cavity block 72 with the mold cavity 22 opposing the mold core 24 and the object 26 positioned between the core block 70 and the cavity block 72.
  • the image of the exploded cavity block 72 and core block 70 is virtually rotated by varying the object orientation through the at least one input by the user.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention concerne un moule servant généralement à la réalisation de la reproduction, sous forme d'une pièce de plastique, d'un objet. Conventionnellement, le moule comprend un noyau de moule et une cavité de moule coopérant de façon à former un canal pour mouler la reproduction sous forme d'une pièce de plastique. Lorsqu'il utilise un système conventionnel de conception de moule pour concevoir un moule constitué d'un noyau de moule et d'une cavité de moule, l'utilisateur doit identifier manuellement au moins une ligne de joint de moule correspondant à un plan de joint de moule. Ce processus, qui prend du temps, est vulnérable aux erreurs faites par l'utilisateur. Etant donné que pour la cavité du moule et le noyau du moule on fait abstraction de la géométrie du plan de joint de moule affectant la qualité superficielle de la reproduction sous forme de pièce de plastique, on doit identifier de façon précise le plan de joint de moule correspondant au moule et à d'autres caractéristiques de l'objet. Un mode de réalisation de l'invention détecte automatiquement au moins une ligne de joint de moule correspondant à l'objet e détecte automatiquement les caractéristiques superficielles et l'axe d'éjection pour faciliter la conception et la génération d'un moule utilisable.
PCT/SG2002/000226 2002-10-01 2002-10-01 Procede et systeme de conception de moule Ceased WO2004042481A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/SG2002/000226 WO2004042481A1 (fr) 2002-10-01 2002-10-01 Procede et systeme de conception de moule
AU2002368320A AU2002368320A1 (en) 2002-10-01 2002-10-01 Mold design method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2002/000226 WO2004042481A1 (fr) 2002-10-01 2002-10-01 Procede et systeme de conception de moule

Publications (1)

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WO2004042481A1 true WO2004042481A1 (fr) 2004-05-21

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WO (1) WO2004042481A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014126901A (ja) * 2012-12-25 2014-07-07 Hitachi Ltd Ｃａｍ装置及び製品形状加工方法
ES2594772A1 (es) * 2015-12-23 2016-12-22 Universidad De Jaén Método y sistema de obtención de geometrías virtuales y detección de zonas no moldeables en piezas
CN109459978A (zh) * 2018-12-18 2019-03-12 西安昆仑工业（集团）有限责任公司 一种开放复杂陡峭深型腔加工中防止扎刀的数控加工方法
JP2023065171A (ja) * 2021-10-27 2023-05-12 キヤノン株式会社 情報処理方法、プログラム、記録媒体、成形型の設計方法、成形型の製造方法、情報処理装置
WO2023236190A1 (fr) * 2022-06-10 2023-12-14 Siemens Industry Software Inc. Déterminations de direction d'éjection intelligente pour conceptions de moule d'injection

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5257203A (en) * 1989-06-09 1993-10-26 Regents Of The University Of Minnesota Method and apparatus for manipulating computer-based representations of objects of complex and unique geometry
JPH05303413A (ja) * 1992-04-27 1993-11-16 Makino Milling Mach Co Ltd 形状データ作成方法
US5458825A (en) * 1993-08-12 1995-10-17 Hoover Universal, Inc. Utilization of blow molding tooling manufactured by sterolithography for rapid container prototyping
EP1094412A1 (fr) * 1998-03-19 2001-04-25 Fujitsu Limited Systeme de conception de moule et support d'enregistrement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257203A (en) * 1989-06-09 1993-10-26 Regents Of The University Of Minnesota Method and apparatus for manipulating computer-based representations of objects of complex and unique geometry
JPH05303413A (ja) * 1992-04-27 1993-11-16 Makino Milling Mach Co Ltd 形状データ作成方法
US5458825A (en) * 1993-08-12 1995-10-17 Hoover Universal, Inc. Utilization of blow molding tooling manufactured by sterolithography for rapid container prototyping
EP1094412A1 (fr) * 1998-03-19 2001-04-25 Fujitsu Limited Systeme de conception de moule et support d'enregistrement

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014126901A (ja) * 2012-12-25 2014-07-07 Hitachi Ltd Ｃａｍ装置及び製品形状加工方法
ES2594772A1 (es) * 2015-12-23 2016-12-22 Universidad De Jaén Método y sistema de obtención de geometrías virtuales y detección de zonas no moldeables en piezas
CN109459978A (zh) * 2018-12-18 2019-03-12 西安昆仑工业（集团）有限责任公司 一种开放复杂陡峭深型腔加工中防止扎刀的数控加工方法
CN109459978B (zh) * 2018-12-18 2021-04-13 西安昆仑工业（集团）有限责任公司 一种开放复杂陡峭深型腔加工中防止扎刀的数控加工方法
JP2023065171A (ja) * 2021-10-27 2023-05-12 キヤノン株式会社 情報処理方法、プログラム、記録媒体、成形型の設計方法、成形型の製造方法、情報処理装置
JP7693509B2 (ja) 2021-10-27 2025-06-17 キヤノン株式会社 情報処理方法、プログラム、記録媒体、成形型の設計方法、成形型の製造方法、情報処理装置
WO2023236190A1 (fr) * 2022-06-10 2023-12-14 Siemens Industry Software Inc. Déterminations de direction d'éjection intelligente pour conceptions de moule d'injection

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