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鳞片石墨粉末选择性激光烧结成型工艺研究

Research on Forming Process of Flake Graphite Powder by Selective Laser Sintering

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摘要

将选择性激光烧结成型技术应用于酚醛树脂/鳞片石墨混合粉末的成型中,以酚醛树脂粉末作为粘接剂,制作出具有高导电、高导热等优良性能的功能器件。揭示了此类混合粉末激光烧结成型的机理,利用有限元法分析了激光烧结成型过程中热影响区的变化规律,并确定了一组合理的烧结成型工艺参数。基于该参数组合,实现了多孔石墨骨架的快速制备,验证了工艺的可行性。

Abstract

The selective laser sintering technology is applied to the formation of phenolic resin/flake graphite hybrid powder by using the phenolic resin powder as the binder and the functional devices with excellent properties such as high conductivity, high thermal conductivity, and so on are produced. The forming mechanism of such hybrid powder via laser sintering is clarified. The finite element method is used to analyze the variation of the heat affected zone during the laser sintering process, and a set of reasonable process parameters for sintering are determined. Based on the combination of the aforementioned parameters, the rapid preparation of porous graphite skeleton is realized, which verifies the feasibility of the above-mentioned process.

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中图分类号:TH145.1+3;TF124

DOI:10.3788/lop53.101409

所属栏目:激光器与激光光学

基金项目:国家自然科学基金(51575313)、湖北省自然科学基金(2014CFB678)

收稿日期:2016-06-24

修改稿日期:2016-06-27

网络出版日期:2016-09-19

作者单位    点击查看

吴海华:三峡大学水电机械设备设计与维护湖北省重点实验室, 湖北 宜昌 443002
李腾飞:三峡大学水电机械设备设计与维护湖北省重点实验室, 湖北 宜昌 443002
肖林楠:三峡大学水电机械设备设计与维护湖北省重点实验室, 湖北 宜昌 443002
熊盼:三峡大学水电机械设备设计与维护湖北省重点实验室, 湖北 宜昌 443002

联系人作者:吴海华(652146213@qq.com)

备注:吴海华(1970—),男,博士,教授,硕士生导师,主要从事石墨增材制造及其工程应用技术方面的研究。

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引用该论文

Wu Haihua,Li Tengfei,Xiao Linnan,Xiong Pan. Research on Forming Process of Flake Graphite Powder by Selective Laser Sintering[J]. Laser & Optoelectronics Progress, 2016, 53(10): 101409

吴海华,李腾飞,肖林楠,熊盼. 鳞片石墨粉末选择性激光烧结成型工艺研究[J]. 激光与光电子学进展, 2016, 53(10): 101409

被引情况

【1】吴海华,鄢俊能,李腾飞,肖林楠. 石墨/酚醛树脂混合粉末选择性激光烧结成型精度实验研究. 激光与光电子学进展, 2017, 54(8): 81405--1

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