摘要
介绍了一种已获得国家发明专利的消失模铸造模样加工技术——聚苯乙烯快速成形技术.该技术采用计算机控制点热源非接触分层气化聚苯乙烯泡沫塑料材料,从而实现模样的三维快速加工.通过理论分析,确定了模样的表面粗糙度与聚苯乙烯快速成形技术加工参数之间的关系,并通过正交试验方法获得了最佳的加工参数组合:加工速度35 mm/s、刀具温度400℃、分层厚度0.1 mm.按照最佳加工参数组合加工的铸造模样,表面粗糙度达到了消失模铸造要求,从而实现了高效、低成本、高精度地制作消失模铸造模样的目标.
A novel technology, rapid prototyping for expandable polystyrene pattern, is introduced, where unnecessary part of the pattern is evaporated by the laminated method with a pin hot knife. The influence of process parameters on the surface roughness of expandable polystyrene pattern is analyzed. The optimal process parameters, such as cutting speed 35mm/s, knife temperature 400℃ and layered thickness 0. 1 mm, are experimentally obtained and combined to meet the surface roughness criterion of lost foam casting. The proposed technology is of higher efficiency and precision, and lower cost.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2007年第3期344-347,382,共5页
Journal of Xi'an Jiaotong University
基金
陕西省工业攻关计划资助项目(2006K05-G23)
关键词
聚苯乙烯泡沫塑料模样
快速成形
加工参数
表面粗糙度
expandable polystyrene pattern
rapid prototyping
process parameter
surface roughness
