Stage injection/carving composite fast shaping technology

A forming process and rapid technology, applied in the direction of manufacturing tools, metal processing equipment, control/adjustment systems, etc., can solve the problems affecting the surface quality of the workpiece, material shrinkage and deformation, poor surface quality, etc., to achieve improved strength, high forming accuracy, Density-enhancing effect

Inactive Publication Date: 2007-07-18
HUAQIAO UNIVERSITY
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  • Abstract
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Problems solved by technology

But on the other hand, the current RP also has the following deficiencies: 1) Low forming accuracy: At present, most of the RP processes realize the accurate positioning of the material through the precise displacement of the scanning mechanism, that is, the net shape, but the net shape faces many problems, the most prominent is The problem of material shrinkage and deformation is difficult to be solved well
2) Poor surface quality: Generally, the layering of RP technology is mostly plane layering, and the algorithm of this layering method is simple and practical
But from a mathematical point of view, plane delamination is an approximation method, and there is a principle error, usually called "step" effect, which affects the surface quality of the workpiece

Method used

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  • Stage injection/carving composite fast shaping technology
  • Stage injection/carving composite fast shaping technology
  • Stage injection/carving composite fast shaping technology

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Embodiment Construction

[0023] Cutting processing and injection molding are adopted respectively in the technology of the present invention, so must select the molding material that meets the requirement. Segmented forming requires that the model data of each segment directly drive the equipment for processing, so it is necessary to research and develop corresponding data processing software and integrated manufacturing equipment.

[0024] Forming materials include part materials and support materials, and have the following characteristics:

[0025] 1) Chemical properties: the two do not undergo chemical reactions, and do not inhibit each other for curing or polymerization;

[0026] 2) Physical properties: the two do not produce miscibility or blending;

[0027] 3) Processing and molding characteristics: the two materials have both good injection performance and good cutting performance;

[0028] 4) Temperature matching characteristics: the injection temperature of the two materials (or the meltin...

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Abstract

The present invention discloses a sectional injection / carving combined quick forming process, it is a integrated combined forming process including material accumulation, material removal and material injection forming. Said invention provides the working principle of said sectional injection / carving combined quick forming process and its concrete operation steps. Said invention can be used for making any complex component, and making said component have high accuracy and surface quality.

Description

technical field [0001] The invention relates to the technical field of rapid prototyping. Background technique [0002] With the fundamental changes in the world market since the 1970s, the life cycle of products has shortened, varieties have increased, and batches have decreased. Customers have higher and higher requirements for product delivery, price and quality. The main driving force for business competition is product development and time to market. The market share largely belongs to the company whose product is first on the market. In this situation, it is impossible for the traditional mass production method and manufacturing technology to meet this requirement, so the advanced forming concept and technology of rapid prototyping appeared. [0003] Rapid prototyping technology (RP) is a system technology that comprehensively utilizes CAD technology, numerical control technology, material science, mechanical engineering, electronic technology, laser technology and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/26B29C45/17B29C33/38B23C3/00B23C3/28G05B19/4099B29K91/00
Inventor 江开勇王霏顾永华黄常标
Owner HUAQIAO UNIVERSITY
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