摘要
镍基单晶高温合金性能优越是航空发动机热端部件如涡轮盘的理想材料,然而镍基单晶高温合金车削加工存在切削力大和刀具磨损严重等问题,限制了零件的加工质量和效率。通过镍基单晶高温合金单因素车削试验,分析了不同车削工艺参数对车削力F_(∑)的影响规律,探究了镍基单晶高温合金刀具磨损机理,提出了防止切削力过大和减缓刀具磨损的措施。试验结果表明车削镍基单晶高温合金车削力F_(∑)随着切削速度vs的增大而减小,而随着进给速度v_(w)和切削深度a_(p)的增大而变大;刀具主要出现磨粒磨损、粘结磨损和涂层剥落3种损伤形式。
Nickel-based single crystal superalloys with superior performance are ideal materials for hot end parts such as turbine disks of aeroengines.However,there are many problems in turning Nickel-based single crystal superalloys,such as high cutting force and serious tool wear,which limit the machining quality and efficiency of parts.Through the single factor turning test of Nickel-based single crystal superalloy,the influence law of different turning parameters on turning force was analyzed,the tool wear mechanism of Nickel-based single crystal superalloy was explored,and the measures to prevent excessive cutting force and slow tool wear were putforward.The experimental results show that the turning force of nickel-based single crystal superalloy decreases with the increase of cutting speed v s,but increases with the increase of feed speed v_(w)and cutting depth a_(p).There are mainly three tool′s damage forms:abrasive wear,adhesivewear and coating peeling.
作者
周云光
王书海
陈晗
田川川
ZHOU Yunguang;WANG Shuhai;CHEN Han;TIAN Chuanchuan(School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819,China)
出处
《组合机床与自动化加工技术》
北大核心
2023年第10期30-32,39,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金项目(51905083,51975113)
河北省自然科学基金项目(E2022501004)
中央高校基本科研业务费项目(2023GFYD002,N2123025,N2203015)
中国博士后科学基金资助项目(2021MD703912)。
关键词
镍基单晶高温合金
车削力
刀具磨损机理
单因素试验
nickel-based single crystal superalloy
turning force
tool wear mechanism
single factor test
