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Soluble material and process for three-dimensional modeling

A technology of three-dimensional objects and thermoplastic materials, which is applied in the direction of liquid material additive processing, additive processing, processing and manufacturing, etc., and can solve problems such as model damage

Inactive Publication Date: 2002-05-01
STRATASYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Fixing the model to this support structure solves the problem of building the model, but creates the problem of removing the support structure from the finished model without causing damage to the model

Method used

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  • Soluble material and process for three-dimensional modeling
  • Soluble material and process for three-dimensional modeling
  • Soluble material and process for three-dimensional modeling

Examples

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Effect test

example 1

[0041] The soluble thermoplastic component comprised 74% by weight base polymer and 26% by weight butylphenyl diphenyl phosphate plasticizer. The base polymer consists of copolymers of higher and lower molecular weight methacrylic acid and methyl methacrylate. The base polymer comprised roughly 50% by weight of the higher molecular weight copolymer and 50% by weight of the lower molecular weight copolymer with a tolerance of plus or minus 5% by weight of each. Each copolymer contained methacrylic acid and methyl methacrylate in a weight percent ratio of 1:2. Higher molecular weight copolymers are characterized by high viscosity (low flow) and low molecular weight copolymers are characterized by low viscosity (high flow). The melt flow rate of copolymer is determined by plasticizing every kind of copolymer with the butylphenyl diphenyl phosphate plasticizer of weight 26%, and the melt flow rate of the high molecular copolymer of plasticization is at 0.4~0.8g / The range of 10m...

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Abstract

A process for three-dimensional modeling in which an alkali-soluble thermoplastic material is used in an additive deposition process to form a soluble support structure (28) for a three-dimensional object (26) under construction. The alkali-soluble thermoplastic material includes a base polymer of carboxylic acid and a plasticizer. Following formation, the object (26) is placed in an alkaline bath to dissolve the support structure (28). The alkali-soluble material can be used to form an alkali-soluble three-dimensional object (26).

Description

[0001] The invention relates to the manufacture of three-dimensional objects using auxiliary model processing techniques. In particular, the present invention relates to the formation of three-dimensional objects by depositing curable material in a predetermined pattern and providing a support structure to support parts of the three-dimensional object during manufacture. Background technique [0002] The additional processing machine of the model makes a three-dimensional model through the establishment of the model medium according to the design data provided by the computer-aided design system (CAD). The use of 3D models includes functional aspects such as aesthetics, verification of mathematical CAD models, formation of permanent process equipment, study of interference and space allocation and testing. One technique is to deposit a curable pattern material in a predetermined pattern using layers that create a pattern based on design data provided by a CAD system. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C41/36C08K5/00
CPCB29K2055/02B29C67/0055C08K5/0016B29C67/0092B29C41/36B29C64/40B33Y80/00B29C64/118B29C64/106C08L33/02
Inventor 小威廉姆·R·泼利特曼安德烈·L·布罗斯
Owner STRATASYS LTD
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