关键词: 大型零件, 抗变形工艺, 分割, 拼合

Abstract: Major problems of Rapid Prototyping (RP) in StereoLithography (SL) were deformation and overall joint effect. To deal with these problems, based on the part's deformation rules in SL, the types and deformation characteristics of different layer sections of parts were analyzed. With regards to the deformation problems in parts' manufacturing, the antideformation technique was studied from 3 aspects: manufacturing orientation, supportive structure and antideformation auxiliary structure. Then, the segmentation and jointing technique of largesized parts for SL were discussed. Finally, a case study was provided to verify the feasibility of segmenting and jointing technique of largesized parts.

Key words: largesized parts, antideformation technique, segmentation, joint