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基于次级烧结区域调控的SLS制件控形控性研究

Accuracy and Performance Controlling of Part Made by Selective Laser Sintering Based on Secondary Sintering Region Regulation

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摘要

提出了一种将中能量密度高速面域扫描粘接与高能量密度轮廓碳化分割相结合的复合扫描方法,并采用该方法及常规扫描方法对宝珠覆膜砂进行烧结实验;研究了烧结件的拉伸断口形貌、抗拉强度、成形精度和变形量,结果表明:复合扫描方法能有效去除次级烧结体,提高烧结件的精度及烧结初强度,减小后处理加热强化过程的变形量,最终获得了高精度、高性能的烧结件。

Abstract

In this paper, a composite scanning method combining high energy density contour carbonization with high energy density contour bonding is proposed, and the proposed method and ordinary scanning method are used to implement sintering experiment. The tensile fracture, tensile strength, forming accuracy and deformation are studied. The results show that the composite scanning method can effectively remove the secondary sinter, improve the precision and initial sintering strength of the sinter, and reduce the deformation in the process of post-treatment heating strengthening. At lase, sintered parts with high precision and high performance are obtained.

Newport宣传-MKS新实验室计划
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中图分类号:TN249

DOI:10.3788/cjl201845.1202001

所属栏目:激光制造

基金项目:国家高技术研究发展计划(SS2015AA042502)

收稿日期:2018-06-12

修改稿日期:2018-07-16

网络出版日期:2018-07-26

作者单位    点击查看

童强:大连理工大学材料科学与工程学院, 辽宁 大连 116023
薛铠华:大连理工大学材料科学与工程学院, 辽宁 大连 116023
姚山:大连理工大学材料科学与工程学院, 辽宁 大连 116023

联系人作者:姚山(yaoshan@dlut.edu.cn)

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引用该论文

Tong Qiang,Xue Kaihua,Yao Shan. Accuracy and Performance Controlling of Part Made by Selective Laser Sintering Based on Secondary Sintering Region Regulation[J]. Chinese Journal of Lasers, 2018, 45(12): 1202001

童强,薛铠华,姚山. 基于次级烧结区域调控的SLS制件控形控性研究[J]. 中国激光, 2018, 45(12): 1202001

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