表面技术Issue(5)：29-32,4.
高速钢钻头电火花沉积 Ti（C,N）/Al2 O3复合涂层的组织及切削性能
Microstructure and Cutting Performance of Ti(C,N)/Al2 O3 Composite Coating on High-speed Steel Drill Produced by Electro-spark Deposition
摘要
Abstract
Objective To prepare electro-spark deposited Ti(C,N) / Al2 O3 coating on high-speed steel (HSS) drills, and to in-vestigate the cutting performance of the coating. Methods Ti(C,N) / Al2 O3 composite coatings on high-speed steel (HSS) drills were prepared by electrospark deposition technique using Ti(C,N) / Al2 O3 as electrode material. The phase composition, morpholo-gy and hardness distribution of the coating were investigated, and the cutting performance tests of the HSS drill coated by Ti(C,N) / Al2 O3 were also conducted. Results The microstructure of Ti(C,N) / Al2 O3 coating was homogeneous with a thickness of 32 ~ 36 μm. The phase composition of the coating was mainly C0. 3 N0. 7 Ti, Al2 O3 , AlTi3 , Fe7 W6 , Fe4 N, TiN and AlN. The ave-rage hardness of the coating was 2. 6 times higher than that of HSS. Conclusion Crack-free Ti(C,N) / Al2 O3 coating could be pre-pared on HSS drill by electrospark deposition technique. The cutting performance of HSS drill with Ti(C,N) / Al2 O3 coating was improved and the service life was prolonged.关键词
电火花沉积/高速钢钻头/Ti(C, N)/Al2O3复合涂层/切削性能Key words
electrospark deposition/high-speed steel drill/Ti(C, N)/Al2O3 composite coating/cutting performance分类
矿业与冶金引用本文复制引用
高玉新,易剑,方淳..高速钢钻头电火花沉积 Ti（C,N）/Al2 O3复合涂层的组织及切削性能[J].表面技术,2014,(5):29-32,4.基金项目
浙江省工量刃具检测与深加工技术重点实验室开放基金项目( ZD201209) （ ZD201209）
台州市科技计划项目(1202ky09) （1202ky09）
浙江省科技计划项目(2012C21107)@@@@Fund：The Open Research Fund Program of Zhejiang Provincial Key Laboratory for Cutting Tools(ZD201209), Taizhou Municipal Science and Technology Project(1202ky09), and Science and Technology Plan of Zhejiang Province(2012C21107) （2012C21107）
