摘要
为获得SUS440不锈钢的低/无损伤加工表面,实现高效加工,本文采用了一种半固着磨具。该磨具能够有效地阻止加工过程中大颗粒磨料对工件表面造成的异常深划痕,实现效率与加工质量平衡。本文使用了800#碳化硅磨料的半固着磨具对SUS440不锈钢进行研磨试验,研究了不同的加工参数对工件表面粗糙度和材料去除率的影响。试验结果显示在27kPa压力、60r/min转速下加工12min后,工件表面粗糙度Ra从250nm下降到50nm,材料去除率保持在1μm/min,实现了高精、高效的加工性能。
A semi-fixed abrasive mould machining is used in order to obtain the SUS440 stainless steel for low/no damage on the surface processing and to achieve the high efficiency machining.The semi-fixed abrasive mould is developed for preventing lapped surface from damage caused by large particles and realizing the balance of efficiency and quality.The effects of different parameters on the surface quality and the material removal rate(MRR)of SUS440 stainless steel which is lapped by 800# SiC semi-fixed abrasive plate are investigated in this paper.Experimental results indicate that the surface roughness Ra of the workpiece could be improved from 250nm to 50 nm after machining for 12 minutes under the conditions with 27kPa pressure and rotation speed of 60r/min.And the MRR is 1μm/min in this condition.A high surface quality and high efficiency machining can be obtained.
出处
《新技术新工艺》
2008年第12期46-49,共4页
New Technology & New Process
基金
国家自然科学基金重点资助项目(50535040)
关键词
半固着磨具
SUS440不锈钢
表面粗糙度
材料去除率
semi-fixed abrasive mould
SUS440 stainless steel
surface roughness
material removal rate
