Because making use of the parameter turns the characteristic shape design with same database technique, making the type design of the product model data, molding tool have the track data to have got the inside contact with the type design model data, knife,The modification knife of the product model has the track to also modify automatically.
The molding tool processes the entity imitates the true technique more and more mature, also is more and more valued by people.It is mimicry machine bed that processing the entity imitate process the process on the computer, can keep the result that view reflect process.
Can takes the gauge of directly quantity that after processing spare parts, can check the mistake that process.At check quantity that after processing spare parts, can at the computer is last to process behind of the entity model proceeds the aleatoric design slices,Measure its size directly with the accuracy.Therefore, it can dissolve mistake at process the stage of craft plait distance design, reduce to repair after processing with return the work, increases consumedly the manufacturing efficiency of the molding tool with quantity.
5. plastics product and its molding tools take shape the manufacturing quickly
Plastics product and its molding tools use the computer CAD technique design after completing, can pass the fleetness take shape the technique make.This is the manufacturing technique of a kind of all new concept.
It abandoned the traditional machine processes the method.Its take shape principle is three design CAD entity models are long-lost set up a series of a layer data of the thickness, make use of the laser take shape machine or others take shape the equipments read these datas,Increase the method technique with the material, pile up the each layer to take shape one by one in order.This technique calls the fleetness to take shape the technique automatically.( Rapid Prototype)It is also a CAD to gather the technical importance constitutes the part.
The first pedestal takes shape the equipments quickly to bear in the United States a company in 1987, because of its characteristics is to has nothing to do with the complicated degree of the product of the manufacturing, bringing the manufacturing industry the enormous vibration.Henceforth decade.
Take shape quickly the technique be flown to develop soon, the category of the equipments also piles up one after another,Turn from the material ¹Ì the method can is pided into the laser with not the laser burns the knot method( SLS), solid surface layer shape method( SGC), layer a manufacturing method( LOM) and melt to sink to accumulate the method( FDM), district constituency glues the knot method( DSPC), laser spirit to sink to accumulate method( SALD) etc. mutually.Every kind of method characteristics is:The method of SLA is applied at the earliest stage of took shape the technique quickly, the early market occupied the bigger cent sum, but is narrow because of the material scope, the cost is higher, taking shape the piece was heat-proof and bore the burthen with applied color the ability low,The recent years was gradually replaced by the other method.The method of FDM because of taking shape the speed quick, the cost is low, get the good application in plastics product profession, because the size of the spare parts is small, accuracy bad.
Also suffer certainly of restrict.The method of LOM because of adoption paper or is outline edge that thin slice plastics, the cost is low, and the laser projects light upon each layer only, as a result take shape the speed quick.
But the product surface quantity is bad.The method of SLS proceeds to burn the knot with the laser, adoptive material than wide, if the plastics, design anticipates, porcelain and ceramics, metals etc. all can take shape, taking shape the piece is heat-proof and bear the burthen with apply color the ability stronger.
Have the extensive and applied foreground.The other method also gets the application in some special kinds process. 塑料模具CAD集成技术英文文献和中文翻译(4):http://www.751com.cn/fanyi/lunwen_5731.html