体育器材SAE1008低碳钢高速磨削砂轮工艺优化  

Process Optimization of SAE1008 Low Carbon Steel High Speed Grinding Wheel for Sports Equipment

作　　者：张楠[1] 李强 ZHANG Nan;LI Qiang(Department of Normal,Xinxiang Vocational and Technical College,He’nan Xinxiang 453006,China;School of Mechanical Engineering,He’nan Polytechnic University,He’nan Jiaozuo 454000,China)

机构地区：[1]新乡职业技术学院师范学院,河南新乡453006 [2]河南理工大学机械工程学院,河南焦作454000

出　　处：《机械设计与制造》2024年第8期223-226,231,共5页Machinery Design & Manufacture

基　　金：河南省高等学校重点科研项目(20B513011)。

摘　　要：利用CBN砂轮高速磨削处理技术,对体育器材用SAE1008钢开展单因素测试,对比了不同磨削工艺下表层残余应力变化特征,并分析了相关影响因素。研究结果表明:当砂轮线速度到达60m/s时,获得了较大切向力,残余压应力相对其它工艺条件明显减小。当砂轮进给速增大后,形成线性降低的残余压应力,获得了更大比磨削能和更小残余压应力。位于(0.5~0.6)mm/min范围内呈现拉应力状态,应力作用造成的层深介于(100~150)μm,形成了更高磨削温度。230/270砂轮相对其它砂轮在磨削阶段形成更小表面残余应力,沿深度方向也产生了残余拉应力。该研究为设计减小残余拉应力以及改善钢材工件表面组织结构完整性的高速磨削技术提供了一定的参考价值。The SAE1008 steel used in sports equipment was tested by single factor using CBN wheel high-speed grinding technology.The variation characteristics of surface residual stress under different grinding processes were compared,and the related influencing factors were analyzed.The results show that when the grinding wheel linear velocity reaches 60m/s,a larger tangential force is obtained,and the compressive residual stress is significantly reduced compared with other process conditions.When the feed speed of grinding wheel increases,the residual compressive stress decreases linearly,and greater specific grinding energy and smaller residual compressive stress are obtained.Tensile stress is present in the range of(0.5~0.6)mm/min,and the layer depth caused by stress is between(100~150)μm,resulting in higher grinding temperature.Compared with other grinding wheels,the 230/270 grinding wheel forms smaller surface residual stress,and also produces residual tensile stress along the depth direction.This study provides some reference value for the design of high speed grinding technology to reduce the residual tensile stress and improve the structural integrity of steel workpiece surface.

关 键 词：高速磨削 残余应力 工艺参数 单因素测试 SAE1008钢 

分 类 号：TH16[机械工程—机械制造及自动化] TG581[金属学及工艺—金属切削加工及机床]