Method for reducing light-cured rapid prototype component surface roughness

Abstract

The present invention discloses one kind of physical and chemical method to lower the surface roughness of stereo optically cured body. The method includes the following steps: compounding resin paint through adding surfactant not more than 0.1 %, active diluent in 5-30 % and leveling agent not more than 1 % into resin and regulating the viscosity of the resin paint to 0.25-0.70 Pa.S; and coatingthe resin paint to the surface of the body to form homogeneous coating of thickness within 300 micron, so as to reduce the roughness from 6-15 micron to 3 micron. The method can eliminate the step effect of stereo optically curing, and has excellent application foreground.

Description

A Method for Reducing Surface Roughness of Light-cured Rapid Prototype technical field The invention relates to a post-processing method for photocured three-dimensional molding prototypes, in particular to a method for reducing the surface roughness of photocured rapid prototypes. The method treats the surface of the prototypes by physical and chemical methods to quickly reduce the surface roughness of the prototypes Spend. Background technique Rapid prototyping technology is a processing and forming method based on material accumulation. Rapid prototyping technology can speed up product innovation and shorten product design and production cycles. Stereolithography is currently the most widely used and most precise method among various rapid prototyping methods. It has the advantages of high production efficiency and material utilization rate close to 100%, and it can form particularly complex shapes (such as hollow parts), Extra fine parts. However, there will still be...

AI Technical Summary

Problems solved by technology

At present, the commonly used post-processing methods include grinding, mechanical secondary processing and other mechanical processing methods. The disadvantage is that it is necessary to reserve a machining allowance during molding. Using mechanical processing for secondary processing requires a lot of manpower and material resources, which further increases Processing costs, and not suitable for parts with complex surface shapes

According to the data retrieval conducted by the applicant, there are no related literatures and patents about treating the surface of the prototype by physical and chemical methods to reduce the surface roughness of the prototype

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