摘要
在对某焊接管路支架进行一体化设计和分析选区激光熔化(selectire laser melting,SLM)技术约束要点的基础上,采用SLM技术制造了四种不同材料的管路支架,分析了所制备支架的宏微观结构和力学性能,并对支架进行了拓扑优化设计。结果表明:SLM技术加工的管路支架在宏微观结构无明显的冶金缺陷,力学性能满足标准要求;在边界和承载能力相同的情况下,拓扑优化后的管路支架重量较初始设计减轻36.6%。结果验证了基于增材制造和拓扑优化的设计方法在结构设计方面的可行性,为同类结构的轻质高强设计、制造提供了有益参考。
Based on the integrated design of a welded pipe bracket and analysis of key constraint points of SLM,four brackets made of four different materials were manufactured by using SLM technology.The macro-microstructure and mechanical properties of the brackets were analyzed,and the topology optimization design of the bracket was carried out.The results show that the macro-microstructure of the brackets processed by SLM has no significant metallurgical defects,and the mechanical properties of the brackets meet the standard requirement.Under the condition of same boundary and load,the weight of the bracket after topology optimization is reduced by 36.6% compared with the initial design.The results verify the feasibility of the proposed method in structural design,and it provides a helpful reference for the lightweight design and manufacture of similar structure.
作者
吴云峰
曹文利
史淑娟
霍毅
李丁丁
WU Yunfeng;CAO Wenli;SHI Shujuan;HUO Yi;LI Dingding(Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China)
出处
《热加工工艺》
北大核心
2023年第11期109-113,117,共6页
Hot Working Technology
关键词
支架
增材制造
拓扑优化
bracket
additive manufacturing
topology optimization
作者简介
吴云峰(1985-),男,天津人,高级工程师,硕士,主要研究方向为结构设计及分析,电话:010-68199136,E-mail:wuyunfeng201@163.com;通讯作者:李丁丁(1995-),男,山东滨州人,工程师,硕士,主要研究方向为结构设计及分析电话:010-68199136,E-mail:dut_ldd@outlook.com。
