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Quick precision mold preparation method

A precision mold and fast technology, applied in the field of rapid precision mold preparation, can solve the problems of inability to prepare mold equipment at one time, uneven heating, large shrinkage rate, etc., and achieve good sealing, fast welding speed, and small shrinkage fluctuation.

Inactive Publication Date: 2015-07-29
SHENZHEN XINLIYANG PRECISION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the working platform, laser sintering cannot prepare large-volume mold equipment at one time
At the same time, due to the uneven heating of the surface layer and the bottom layer of polystyrene during laser sintering, the shrinkage rate is relatively large, resulting in warping of the surface

Method used

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  • Quick precision mold preparation method

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] like figure 1 Shown, the specific embodiment described in the present invention is a kind of rapid precision mold preparation method,

[0017] The first step is to optimize the design of the mold through 3D modeling software, obtain and establish the overall 3D model of the target mold through modeling, and then split the modeled 3D model into multiple smaller structures through 3D modeling Simple part modules, while adding a connection reinforcement structure at the split;

[0018] The second step is to slice the 3D model of each part module, input the sliced ​​data into the industrial computer, and set the process parameters according to the thickness, size, radian and other parameters of different parts, and add polystyrene powder to the In the laser sintering 3D manufacturing machine, the polystyrene powder is evenly spre...

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Abstract

The invention discloses a quick precision mold preparation method which comprises the following steps: 1, constructing a three-dimensional model, and partitioning into part modules; 2, performing laser sintering to prepare part modules; 3, performing ultrasonic welding on the part modules. By adoption of laser sintering for manufacturing a mold, the mold materials are readily available, waste is avoided, and the cost is low; after 3D modeling, a prototype with complicated structure can be quickly manufactured; by adoption of partitioning design, the whole mold is split and then subjected to ultrasonic welding after laser sintering, so that the preparation requirement of a large-size mold can be met. The ultrasonic plastic welding has the advantages that the welding speed is high, the welding intensity is high, and the sealing property is high; polystyrene is colorless transparent thermoplastic plastic, has glass conversion temperature higher than 100 DEG C, is stable and quick in sintering and small in shrinking percentage fluctuation which is generally 0.2-0.6 percent; ultrasonic welding is pollution-free, and a workpiece cannot be damaged; the welding process is stable.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to a rapid and precise mold preparation method. Background technique [0002] Mold, various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. In short, a mold is a tool used to shape an object. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. Known as the "Mother of Industry". [0003] Under the action of external force, the blank becomes a tool with a specific shape and size. Widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, and compression molding or injection molding of engineering plastics, rubber, cera...

Claims

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Application Information

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IPC IPC(8): B29C33/38B29C69/00
Inventor 赵恺
Owner SHENZHEN XINLIYANG PRECISION TECH
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