基于SLM的工艺参数对TC4合金成形件性能的影响

黄建国; 余欢; 徐志锋; 汪志太; 刘志权

doi:10.15980/j.tzzz.2018.04.008

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基于SLM的工艺参数对TC4合金成形件性能的影响
Effects of Processing Parameters on Performance of TC4 Alloy Samples by Selective Laser Melting
2018年38卷第4期页码：375-379
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.04.008

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[1]黄建国,余欢,徐志锋,汪志太,刘志权.基于SLM的工艺参数对TC4合金成形件性能的影响[J].特种铸造及有色合金,2018,38(04):375-379.

Huang Jianguo, Yu Huan, Xu Zhifeng, et al. Effects of Processing Parameters on Performance of TC4 Alloy Samples by Selective Laser Melting[J]. Special Casting & Nonferrous Alloys, 2018,38(4):375-379.
[1]黄建国,余欢,徐志锋,汪志太,刘志权.基于SLM的工艺参数对TC4合金成形件性能的影响[J].特种铸造及有色合金,2018,38(04):375-379. DOI： 10.15980/j.tzzz.2018.04.008.

Huang Jianguo, Yu Huan, Xu Zhifeng, et al. Effects of Processing Parameters on Performance of TC4 Alloy Samples by Selective Laser Melting[J]. Special Casting & Nonferrous Alloys, 2018,38(4):375-379. DOI： 10.15980/j.tzzz.2018.04.008.

摘要

以Ti-6Al-4V（TC4）粉末为材料

采用正交试验方法

主要研究激光功率、扫描速度和扫描间距等工艺参数对TC4合金粉末的SLM成形件的质量、微观组织及力学性能的影响

并引入能量密度来确定TC4粉末的SLM最优工艺成形域。结果表明

随着能量密度增加

TC4合金粉末的SLM成形性能先变好后变差

而其最优的工艺成形域是激光功率为400W

激光扫描速度为800

200mm/s

扫描间距为0.08mm

铺粉厚度为0.05mm。

Abstract

The effects of laser power

scanning speed and hatch spacing on the quality

microstructure and mechanical properties of SLM formed Ti-6 Al-4 V（TC4）powder parts were investigated by orthogonal experimental method.The energy density was introduced to confirm optimal forming domain of TC4 power in SLM.The results reveal that with the increase of energy density

the SLM forming performance of TC4 powder exhibits a tendency of improvement firstly and then worse.The optimum forming processing parameters are presented as follows:laser power of 400 W

scanning speed of 1 800

200 mm/s

hatch spacing of 0.08 mm and spreading thickness of 0.05 mm.