Wear Behavior of Diamond-Coated Drawing Dies

作     者：林子超 孙方宏 沈彬 LIN Zichao ,SUN Fanghong,SHEN Bin (School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

作者机构：School of Mechanical Engineering Shanghai Jiao Tong University 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2011年第17卷第4期

页      面：259-263页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Supported by National Natural Science Foundation of China (No. 50975177 and No. 51005154) China Postdoctoral Science Foundation (No. 20100470029) Tribology Science Fund of State Key Laboratory of Tribology (No. SKLTKF10B02) 

主　　题：金刚石涂层 磨损行为 拉丝模 化学气相沉积法 扫描电子显微镜 拉拔模具 有限元法 性能测试 

摘      要：The failure behavior of diamond-coated die was investigated experimentally and analytically through finite element method (FEM) simulation in the present work. Diamond coatings were fabricated by straight hot filament chemical vapor deposition (CVD) passing through the interior hole of the drawing die using a mixture of hydrogen and acetone as source gases. The performance tests were made under real drawing condition. Scanning electron microscopy (SEM) was used for the study of coating wear after die service. The coating wear appears on two regions of the reduction zone: one is near the entrance where the contact begins, and the other is at the end of the reduction zone. FEM simulation was made for calculating the von Mises stresses distribution on the coating and substrate during the drawing process. The present work was of great practical significance for the improvement of drawing performance of diamond-coated drawing dies.