摘要
针对陶瓷刀具高速切削高温合金时刀具磨损严重的问题,采用微喷砂处理技术对Sialon基陶瓷刀具表面进行处理,研究喷砂时间对Sialon基陶瓷刀具表面完整性(微观形貌、表面粗糙度、维氏硬度、断裂韧度、残余压应力)的影响规律,提升陶瓷刀具表面完整性,从而提高刀具耐磨性。研究表明:在喷砂4 min、喷砂压强0.4 MPa的条件下,陶瓷表面微观缺陷得到改善,断裂韧度提升32%,残余压应力提升12%,可以获得综合水平较高的表面完整性,为陶瓷刀具微喷砂处理参数的选择提供理论性指导,有助于提升陶瓷刀具表面完整性。
In view of the serious problem of tool wear in high-speed cutting of high-temperature alloys with ceramic tools,micro-blasting technology was used to treat the surface of Sialon-based ceramic tools.The effect of blasting time on the surface integrity(morphology,surface roughness,Vickers hardness,fracture toughness,residual compressive stress)of Sialon-based ceramic tools was studied.The surface integrity and wear resistance of the ceramic tool can be improved.The results showed that the surface integrity can be obtained under the conditions of blasting for 4 min and blasting pressure of 0.4 MPa.The micro-defects on the ceramic surface were improved,and.The fracture toughness was increased by 32%.The residual compressive stress was increased by 12%.This study can provide theoretical guidance for the selection of micro-blasting treatment parameters of ceramic tools and help to improve the surface integrity of ceramic tools.
作者
骆传跃
郑光明
杨先海
张国栋
刘焕宝
赵光喜
LUO Chuan-yue;ZHENG Guang-ming;YANG Xian-hai;ZHANG Guo-dong;LIU Huan-bao;ZHAO Guang-xi(School of Mechanical Engineering,Shandong University of Technology,Zibo 255000,China;Shandong Yaohua Tenai Technology Co.,Ltd.,Binzhou 256619,China)
出处
《组合机床与自动化加工技术》
北大核心
2022年第2期125-127,132,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
山东省自然科学基金资助项目(ZR2020ME156)
国家自然科学基金资助项目(52075306)
国家重点研发计划项目(2018YFB2001400)。
关键词
微喷砂时间
陶瓷刀具
表面处理
表面完整性
micro-blasting time
ceramic tools
surface treatment
surface integrity
