RP process selection method combined with qualitative analysis and quantitative computation by using computer

Abstract

A RP process selection is a combination of qualitative and quantitative computation of computers. The process adopts qualitative and quantitative combined method to decide the proper RP manufacturing equipment based on specific requirement of RP customer. Firstly, it gets RP manufacturing equipment candidate plan based on computer assisted qualitative system based on expert system, then deciding the most proper RP process using fuzzy synthetic judgment assisted with qualitative analysis. The obvious feature of this method is the combination of qualitative analysis and quantitative computation, with more reliable and accurate RP manufacturing equipment. It can also be used to other process plan, plan selection, material selection and so on, providing a relatively ideal solution.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology, relates to rapid prototyping (RP), expert system and fuzzy comprehensive evaluation technology, in particular to an RP process selection method combining qualitative analysis and quantitative calculation by using a computer. Background technique [0002] In the rapid development of new products, the use of RP technology can shorten the product development cycle and reduce manufacturing costs. However, only by selecting the most suitable RP production equipment according to the specific manufacturing task requirements of different users, can the advantages of RP technology be fully utilized. However, due to the wide variety of RP equipment and processes; each RP equipment and process has its own characteristics and scope of application; the diversity of RP and subsequent RT process combinations. Therefore, for most RP users, it is particularly difficult to choose suitable RP produ...

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Problems solved by technology

These factors are both qualitative and quantitative; different factors have different influences on the selection of RP production equipment; and most of the factors are vague and uncertain; many evaluation indicators are interdependent and contradictory, and each indicator The dimension and unit of the value are often not uniform, and there are both cost-type attribute indicators and benefit-type attribute indicators; the advantages and disadvantages of various RP production equipment under a certain evaluation factor are relative, and there is no clear boundary , there is ambiguity, which determines that the quality of a scheme cannot be directly determined by the size of a certain index

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