Research Of Slice Algorithm Metal Compound Rapid Prototyping

Rapid Prototyping manufacturing came of USA, and then it run to Japan and west Europe, it is a great breakthrough in manufacturing technology domain in late 20 years. RPM is an integration of CAD, numerical control, laser technology and material science, It can automatically and rapidly make designing become a prototyping which has some structure and function or directly fabricate parts, so it can rapidly evaluate and amend on product designing in answer to market demanding. Consequently it enhances enterprises' competing ability. In recent years, metal rapid prototyping became the focus of rapid prototyping study gradually, but shaping precision and surface quality of metal rapid prototyping have been problems of the research. To this question, this paper put forward mental compound rapid prototyping that is composed of traditional rapid prototyping and reduction rapid prototyping.This paper aims at the shortages, which are too much information, too long-processing time, of STL form file in the front processing of Laser Rapid Prototyping, it puts forward a method of 3-D CAD model direct slicing, and it will process section profile curve that direct slicing produces so that this section profile curve will be used in sequent numerical controlling machine tool. Direct slicing on the model can reduce data-processing time and file dimension, advance precision of work pieces.It proved the advantage of the slice algorithm which is based on structure of topology in efficiency on time and space. Slice algorithm which is based on structure of topology have solved the problems on efficiency during process of slice of CAD model, and it amply prepared for further research on metal power laser shape.