选择性激光烧结快速成形技术铺粉装置的设计.docVIP

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选择性激光烧结快速成形技术铺粉装置的设计.doc

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选择性激光烧结快速成形技术铺粉装置的设计

湘潭大学兴湘学院毕业设计说明书题目：选择性激光烧结快速成形技术铺粉装置的设计专业：机械设计与制造及其自动化学号：姓名：指导教师：完成日期： 2014年5月15日目录中文摘要································································3 Abstract·································································4 1绪论···································································5 1.1课题来源···························································5 1.2研究目的和意义·····················································6 1.3选择性激光烧结概述·················································7 1.4 SLS技术的发展历程和现状···········································9 1.5 SLS铺粉装置的目前现状············································10 1.6本章小结··························································12 2选择性激光烧结的铺粉装置的设计·······························13 2.1铺粉装置的总体设计················································13 2.2铺粉装置的第一种方案··············································13 2.3铺粉装置的第二种方案··············································15 2.4方案的比较及最终选择··············································16 2.5设计方案的设计要求················································16 2.6本章小结··························································17 3 铺粉装置的结构设计··········································18 3.1主机······························································18 3.2成型工作缸························································18 3.3丝杠设计··························································18 3.4 齿轮的设计························································27 3.5步进电机设计······················································31 3.6废料回收缸························································33 3.7铺粉滚筒装置······················································33 3.8送料工作缸························································34 3.9激光器········································