期刊文献+

金属粉末床粘结剂喷射3D打印关键问题的研究现状与展望 被引量:1

Research Progress and Prospects of Key Problems in Metal Powder-bed Binder Jetting
下载PDF
导出
摘要 针对金属粉末床粘结剂喷射3D打印技术存在薄层铺粉难、粘结剂不匹配、初坯及烧结件密度低等问题,首先从原材料特征、铺粉机构及数值模拟等方面总结当前粉末铺展研究现状;接着阐述了粘结剂与粉床作用、粘结剂类型和性能以及残留问题的研究进展,指出优化粘结剂体系、限制残留物,有利于提升粘结剂喷射成形金属零件性能;然后介绍了烧结和浸渗等当前常见致密化方法,指出致密化过程中需考虑变形和精度控制,并通过热等静压、固溶和时效等后处理方法对零件孔隙及相组成进行调控;最后指出高精度、高性能和难成形材料打印是未来发展趋势。 Recently,metal powder-bed binder jetting(MPBJ)has the problems of low green density,binder mismatch and densification difficulty.In order to address these problems,the current status of powder spreading is firstly summarized in terms of raw material characteristics,powder spreading mechanism,and numerical simulation.Subsequently,the type of binder,its role with the powder bed and the residue problem are elaborated.Optimizing the binder system,limiting the residue,are all beneficial to the performance of the binder jet-formed metal parts.Sintering and immersion infiltration are common densification methods,during which deformation and precision control need to be considered,in addition to post-treatment methods such as hot isostatic pressing and solution aging are usually required to further regulate the pore and phase composition of the parts.Finally,it is pointed out that high-precision,highperformance and difficult-to-form material printing is the future development trend.
作者 衡玉花 毛贻桅 冯琨皓 陶健全 向林 魏青松 HENG Yuhua;MAO Yiwei;FENG Kunhao;TAO Jianquan;XIANG Lin;WEI Qingsong(State key Laboratory of Material Processing and Die and Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Southwest Technology and Engineering Research Institute,Chongqing 430039,China)
出处 《电加工与模具》 北大核心 2024年第2期1-14,72,共15页 Electromachining & Mould
基金 国防基础科研计划项目(JCKY2023209B001) 湖北省重点研发项目(2020BAB049) 武汉市科技项目(2020010602012037)。
关键词 金属粉末床粘结剂喷射 粉末铺展 粘结剂 致密化 metal powder-bed binder jetting powder spreading binder densification
  • 引文网络
  • 相关文献

参考文献3

二级参考文献11

共引文献18

同被引文献4

引证文献1

;
使用帮助 返回顶部