汽车液压油缸316L不锈钢复合增材工艺及性能研究  

Research on Composite Additive Technology and Performance of 316L Stainless Steel for Automobile Hydraulic Cylinder

作　　者：王卫军[1] 郭紫威 代孝红 王鑫 Wang Weijun;Guo Ziwei;Dai Xiaohong;Wang Xin(Automobile Application College,Chang Chun Automobile Industry Institute,Changchun,Jilin 130013,China;Changchun Yidong Clutch Co.,Ltd.,Changchun,Jilin 130022,China)

机构地区：[1]长春汽车工业高等专科学校汽车运用学院,吉林长春130013 [2]长春一东离合器股份有限公司,吉林长春130022

出　　处：《应用激光》2022年第12期59-65,共7页Applied Laser

基　　金：吉林省职业教育与成人教育教学改革研究课题(2020ZCY199)。

摘　　要：采用光纤激光-电弧复合增材方式对316L不锈钢进行增材制造,利用高速摄像研究了焊接电流对激光-电弧复合增材制造过程稳定性的影响,选取焊接稳定性最高的工艺参数进行堆积试验。试验结果表明,当电流为210 A、激光功率为1 500 W时,焊接稳定性最佳;气孔率是影响试样力学性能的关键因素,制备的多层堆积试样抗拉强度为569.9 MPa,延伸率为16.8%。In the experiment, 316 L stainless steel component was manufactured by fiber laser-arc hybrid additive manufacturing. The influence of welding current on the stability of laser-arc hybrid additive manufacturing process was studied by high-speed camera, and the process parameters with the highest welding stability were selected for the stacking experiment. Experimental results show that when the current is 210 A and the laser power is 1 500 W, the welding stability is the best, and the porosity is the key factor affecting the mechanical properties of the sample. The tensile strength and elongation of the multilayer stacking sample prepared are 569.9 MPa and 16.8%, respectively.

关 键 词：316L不锈钢 微观组织 熔滴过渡 

分 类 号：TG456.7[金属学及工艺—焊接]