GCr15轴承钢零件边缘激光精整工艺试验研究  

Experimental research on laser finishing process of GCr15 bearing steel part edge

作　　者：华希俊[1] 王炳文 张加力 李云蕾 解玄[1] 李春晓 HUA Xijun;WANG Bingwen;ZHANG Jiali;LI Yunlei;XIE Xuan;LI Chunxiao(School of Mechanical Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China;ASIMCO Camshaft(Yizheng)Co.,Ltd.,Yizheng Jiangsu 211400,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013 [2]亚新科凸轮轴(仪征)有限公司,江苏仪征211400

出　　处：《激光杂志》2020年第4期111-115,共5页Laser Journal

基　　金：江苏省产业前瞻与共性关键技术项目(No.BE2017122);扬州市科技成果转化项目(No.YZ2018125);镇江市重大科技专项项目(No.ZD2018001);镇江市高技术研究重点实验室项目(No.SS2018007)。

摘　　要：为了探究GCr15轴承钢纳秒激光精整工艺,采用单因素轮换法,进行了激光功率、扫描速率、重复次数对激光精整质量影响规律的试验研究。研究结果表明:利用纳秒激光可实现对GCr15轴承钢零件边缘的精整加工,随着激光功率的增大,精整去除量逐渐增大,而单位去除量缓慢下降,当激光功率为4.02 W、5.22 W(即电流参数19 A、20 A)时,加工效率相对较高;扫描速率较低时,纳秒激光可以有效去除边缘材料且边缘轮廓较为平滑,增大扫描速率会导致光斑搭接率变小,进而精整去除量相应地减小;重复次数的增加降低了加工效率,重复次数增加至原来的4倍,去除量仅增加26.31%。研究结果验证了采用纳秒激光精整零件边缘的可行性,为零件边缘精整方法提供新的思路。In order to explore the nanosecond laser finishing process of GCr15 bearing steel,the single factor rotation method is used to test the influence of laser power,scanning rate and repetition times on laser finishing quality.The research result shows that the finishing of the edge of GCr15 bearing steel can be realized by nanosecond laser.As the laser power increases,the amount of finishing removal increases gradually,and the unit removal decreases slowly.When the laser power is 4.02 W,5.22 W(current parameters 19 A,20 A),the processing efficiency is relatively high.When the scanning rate is low,the nanosecond laser can effectively remove the edge material and the edge contour is smoother.Increasing the scanning rate will cause the spot lap rate to become smaller,and the amount of finishing removal correspondingly decreases.The increase in the number of repetitions reduces the processing efficiency,the number of repetitions is increased by four times,and the removal amount is only increased by 26.31%.The results verify the feasibility of using nanosecond laser to trim the edge of the components,and provide a new idea for the edge finishing method of the components.

关 键 词：激光技术 GCR15轴承钢 激光精整 工艺试验 

分 类 号：TN249[电子电信—物理电子学]