试验研究的表面质量,杆转由电线电流放电转过程
Sujeet Kumar Chaubey1, Kapil Gupta1
1Department of Mechanical and Industrial Engineering Technology, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa.
Materials (Basel, Switzerland)
|June 10, 2023
概括
这项研究优化了微型条的线电放电回转 (WEDT),实现了表面粗度 (Rz) 的减少37%. 这些发现为具有挑战性的材料提供了改进的微转方法.
科学领域:
- 材料科学与工程 材料科学与工程
- 制造过程 制造过程 制造过程
- 表面工程是什么?表面工程是什么?
背景情况:
- 微型圆柱形条 (MCTB) 由于其材料特性而存在加工挑战.
- 实现高表面质量对于微组件的性能和寿命至关重要.
- 电线放电转换 (WEDT) 是微加工的一种可行但复杂的工艺.
研究的目的:
- 研究和优化通过WEDT生产的MCTB的表面质量.
- 确定影响表面粗度的关键WEDT参数.
- 通过优化实现平均粗度深度 (Rz) 的显著降低.
主要方法:
- 为了WEDT,使用了一根涂线 (直径250微米).
- 采用响应表面方法 (RSM) 的盒式设计 (BBD),进行了17次实验运行.
- 应用灰色关系分析 (GRA) 用于多目标优化WEDT参数.
主要成果:
- 火花持续时间 () 被确定为对表面粗度 (Rz) 最有影响力的参数.
- 优化的WEDT参数 (Ton-0.9 μs,SV-30 V,DOC-0.35 mm) 产生了7.42 μm的最小Rz.
- 与基线条件相比,表面粗度 (Rz) 降低了37%.
- 在优化的MCTB中观察到有利的部落学特征.
结论:
- 该研究成功优化了WEDT,以提高MCTB的表面质量.
- 开发的方法比以前的微转研究提供了显著的改进.
- 这些发现适用于各种难以加工的材料的微转,提高组件性能.
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