摘要
基于SLM技术,探究激光功率、扫描速度、铺粉厚度3个工艺参数对H13钢成型性能的影响程度,采用L9(33)的正交试验方案,并对试验数据进行极差、方差分析以及相关性检验,得到了工艺参数对尺寸精度、硬度、表面粗糙度、冲击韧性以及在同权重情况下试样综合性能的影响。试验结果表明,铺粉厚度对硬度、尺寸精度、综合性能的影响最大;扫描速度对表面粗糙度、冲击韧性影响最大;激光功率对表面粗糙度、尺寸精度、综合性能的影响介于二者之间,对硬度、冲击韧性的影响程度最小;铺粉厚度与尺寸精度、综合性能有较强的负线性关系。
Based on SLM technology, the laser power, scanning speed, and powder spreading thickness were studied to explore the influence of the three process parameters on the forming properties of H13 steel. The L9(33) orthogonal test scheme was adopted, and the influence of process parameters on dimensional accuracy, hardness, surface roughness, impact toughness, and comprehensive properties of the sample under the same weight was obtained by range analysis, variance analysis, and correlation test of the test data. The results showed that the powder spreading thickness had the greatest influence on hardness, dimensional accuracy, and comprehensive properties,the scanning speed had the greatest influence on surface roughness and impact toughness, the influence degree of laser power on surface roughness, dimensional accuracy, and comprehensive properties was between them, and the influence degree on hardness and impact toughness was the least. There was a strong negative linear relationship between the powder spreading thickness and dimensional accuracy and comprehensive performance.
作者
涂尊鹏
潘健怡
董艺
唐广
吴玉广
翁育武
胡哲鑫
TU Zun-peng;PAN Jian-yi;DONG Yi;TANG Guang;WU Yu-guang;WENG Yu-wu;HU Zhe-xin(School of Mechanical Engineering,Guangzhou City University of Technology,Guangzhou,Guangdong 510800,China)
出处
《模具工业》
2022年第2期57-62,共6页
Die & Mould Industry
基金
广州城市理工学院学科建设项目(CQ200014)。
