Engineering plastic laser rapid prototyping method

Abstract

The invention discloses an engineering plastic laser rapid prototyping method and belongs to the field of rapid prototyping. The engineering plastic laser rapid prototyping method comprises the following steps of a model preparation stage, a three-dimensional model Z-direction discretization stage, a layer information processing and making stage and a prototyping and checking stage. At the model preparation stage, three-dimensional model design of a rapid prototyping product is completed with computer-aided design software, and after three-dimensional model design is completed, structural analysis is conducted on a three-dimensional model. At the three-dimensional model Z-direction discretization stage, the model is divided into layers of different thicknesses according to the needs of a rapid prototyping process, and the three-dimensional model of the product is converted into two-dimensional plane information through layering. At the layer information processing and making stage, thelayered two-dimensional plane information is represented by numerical control codes, and after the two-dimensional plane information is scanned by a laser, all two-dimensional plane models are processed sequentially in a plane processing mode. At the prototyping and checking stage, all the made two-dimensional plane models are bonded sequentially till a final three-dimensional product part is completed through stacking, the three-dimensional product is checked after making is completed, and whether the three-dimensional product meets design and quality requirements of the product is judged.

Description

technical field [0001] The invention relates to the field of rapid prototyping, in particular to a laser rapid prototyping method for engineering plastics. Background technique [0002] Laser rapid prototyping is a brand-new manufacturing technology that integrates advanced technologies such as CAD, CAM, CNC, laser, precision servo drive and new materials. Compared with traditional manufacturing methods, it has: high prototype replicability and interchangeability; and manufacturing The process has nothing to do with the geometric shape of the manufacturing prototype; the processing cycle is short, the cost is low, the general manufacturing cost is reduced by 50%, and the processing cycle is shortened by more than 70%; it has a high degree of technology integration and realizes the integration of design and manufacturing. [0003] However, at present, when laser rapid prototyping is used to make product prototypes, the whole process often takes a lot of time, and the final pr...

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Problems solved by technology

[0003] However, at present, when laser rapid prototyping is used to make product prototypes, the whole process often takes a lot of time, and the final product prototypes cannot meet the requirements of use or design, and then the product design needs to be improved again, until several times Improvement to meet the design and use requirements will result in waste of time and resources, which is contrary to the original short cycle and low cost of laser rapid prototyping, and is not conducive to the rapid production of rapid prototyping product prototypes