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SLM成形角度对316L不锈钢成形精度的影响 被引量:4

Influence of SLM Sloping Angle on Forming Accuracy of 316L Stainless Steel
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摘要 为了提高选区激光熔化(SLM)成形316L不锈钢成形精度,采用选区激光熔化成形工艺设备制备了不同成形角度的316L不锈钢成形件。通过致密度测量、成形尺寸测量和表面粗糙度测量,研究了成形角度对316L不锈钢成形件成形精度的影响。结果表明:随着成形角的增大,试样的致密度呈先减小后增大的趋势,成形角为0°时致密度最大,为99.82%;x、z方向的尺寸误差先增大后减小,y方向的尺寸误差呈"W"形变化;A、C平面的表面粗糙度先增大后减小,0°与90°时试样上表面粗糙度最小,分别为6.79μm、6.43μm,B平面的表面粗糙度基本不变。 In order to improve the forming accuracy of the selective laser melting part, 316 L stainless steel parts with different sloping angles were fabricated by selective laser melting equipment. The influence of sloping angle on the forming accuracy of 316 L stainless steel was studied by density measurement, forming dimension measurement and surface roughness measurement. The results show that with increasing the sloping angle, the density of SLM samples decreases firstly, and then increases to the maximum value of 99.82% at 0°. The dimension error in the x and z directions increases first and then decreases, while the dimensional error in the y direction changes in the shape of "W". The surface roughness of A and C plane increases firstly and then decreases, the upper surface roughness of the sample is the minimum at 0° and 90°, which is 6.79 μm and 6.43 μm, respectively. The surface roughness of the B plane is basically the same.
作者 李彬 戴善波 顾海 姜杰 杨建春 孙健华 张捷 Li Bin;Dai Shanbo;Gu Hai;Jiang Jie;Yang Jianchun;Sun Jianhua;Zhang Jie(School of Mechanical Engineering,Nantong Institute of Technology,Nantong,Jiangsu 226002,China;Jiangsu Key Laboratory of 3D Printing Equipment and Application Technology,Nantong,Jiangsu 226002,China)
出处 《应用激光》 CSCD 北大核心 2021年第3期454-459,共6页 Applied Laser
基金 南通理工学院中青年科研骨干培养工程资助项目(ZQNGG203) 江苏省高校自然科学研究项目资助项目(18KJB460023,18KJA460006) 江苏高校“青蓝工程”资助项目(苏教师[2019]3号) 江苏省重点建设学科资助项目(苏教研[2016]9号) 南通市科技计划项目(JC2020149)。
关键词 选区激光熔化 316L不锈钢 成形角度 尺寸误差 表面粗糙度 selective laser melting 316L stainless steel sloping angle dimension error surface roughness
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