热丝法批量制备金刚石涂层钻头参数仿真优化

摘要/Abstract

摘要：

摘要：基于有限容积法，研究了采用热丝化学气相沉积法常规工艺在批量化YG6硬质合金钻头工作表面制备金刚石涂层过程中基体表面的温度场分布状况，并通过测温对照试验验证了仿真方法及仿真结果的合理性和正确性.在传统的等间距热丝排布方式基础上系统研究了不同热丝参数（间距D、长度L、半径r、温度T和高度H）对基体温度场分布的影响，并进一步提出了不等间距的热丝排布形式以提高批量化基体表面温度场分布的均匀性，据此确定了用于批量制备金刚石涂层钻头的最优沉积参数.采用最优参数批量制备的金刚石涂层钻头具有较好的涂层质量和一致性，进一步验证了基于仿真的沉积参数优化方法的可靠性.
关键词：中图分类号：文献标志码： A
optimization

关键词: 热丝化学气相沉积, 批量化, 金刚石涂层钻头, 温度场分布, 参数优化

Abstract:

Abstract： Based on the finite volume method (FVM), the substrate temperature distributions in HFCVD diamond films growth on large quantities of drills with the conventional deposition parameters were investigated. The corresponding temperature measurement tests were also conducted, verifying the rationality and correctness of the simulation method and results. Based on the traditional equidistant filament arrangement, the influences of different deposition parameters on substrate temperature distributions were systematically studied, including the filament separation D, filament length L, filament radius r, filament temperature T and filament height H. Furthermore, a novel nonequidistant filament arrangement was proposed to further improve the uniformity of the substrate temperature distribution, and the optimized deposition parameters were finally determined. The diamond coated drills fabricated with such optimized parameters present satisfying uniformity coating quality, further testifying the reliability of the parameters optimization method based on the simulations.

Key words: hot filament chemical vapor deposition(HFCVD), large quantities, diamond coated drills, temperature distribution, parameter

中图分类号:

程雷,张建国,王新昶,张韬,沈彬,孙方宏. 热丝法批量制备金刚石涂层钻头参数仿真优化[J]. 上海交通大学学报（自然版）, 2014, 48(11): 1600-1605.

CHENG Lei,ZHANG Jianguo,WANG Xinchang,ZHANG Tao,SHEN Bin,SUN Fanghong. Simulation Optimization of Deposition Parameters in HFCVD Diamond Films Growth on Large Quantities of Drills[J]. Journal of Shanghai Jiaotong University, 2014, 48(11): 1600-1605.

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