快速成型制造的介紹及外文翻譯-其他專業(yè)(編輯修改稿)
2025-02-24 11:36 本頁面
【文章內(nèi)容簡介】 the traditional fields, attracting the interest of artisans whose skill any knowledge has led to 3D objects being used directly and indirectly as patterns and model for soft tooling. of models by machining has a number of limitations. 7. Material removed during forming is difficult to reclaim. in the form of drilling turning milling spark erosion etc., is limited by the shapes it can produce. the event of design change, conventional tooling such as patterns ,core boxes, dies, jigs etc. ,bee expensive to alter ， and in many cases, may require plete remanufacture. What RPamp。M CAN DO? To substantially shorten the time for developing patterns, moulds, and prototypes, some manufacturing enterprises have started to use rapid prototyping methods for plex patterns making and ponent prototyping. Over the past few years, a variety of new rapid manufacturing technologies, generally called Rapid Prototyping and Manufacturing(RPamp。M),have emerged 。the technologies developed include Stereo lithography(SL),selectedlaser sintering(SLS),fused deposition modeling(FDM),laminated object manufacturing(LOM),and three dimensional printing (3D Print).They have a mon important feature 。the prototype part is produced by adding materials rather than removing materials. This simplifies the 3D part producing processes to 2D layer adding processes so that a part can be produced directly from its puter model. rapid prototyping differs with conventional manufacturing methods by adding material layer by layer until the desired sharp is achieved, immediately reducing or avoiding the loss of material. THE BASIC PROCESS IN RP RP machines process CAD data by slicing the puter model into layers ,each layer being typically thick the machine then uses this data to construct the model layer by layer ,each layer being bonded to the previous until a solid object is formed. Due to this laminated method of construction a stepped surface is developed on curved faces, the removal of which is essential if maximum advantage of the process
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