通过铣削、研磨和抛光组合工艺实现 GH4169 的表面完整性和疲劳寿命

IF 1.9 3区工程技术 Q3 ENGINEERING, MANUFACTURING

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pub Date : 2024-01-16 DOI:10.1177/09544054231219042

Chuan-Hui Cui, Zheng-Qing Zhu, Zhi-Tong Chen, Yi-Meng Li

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引用次数: 0

摘要

本文研究了 M（铣削）、G（磨削）、MMP（铣削和手工抛光）、GMP（磨削和手工抛光）、MCP（铣削和数控抛光）、GCP（磨削和数控抛光）等六种工艺对 GH4169 表面完整性和疲劳寿命的影响。结果表明，与铣削相比，磨削产生的硬化程度更大，磨削表面和铣削表面的残余应力分别为压缩应力和拉伸应力。抛光可明显降低前一道工序形成的表面粗糙度。铣削表面的拉伸残余应力在抛光后转化为压缩应力，而磨削表面的硬化程度和残余应力在抛光后没有明显变化。手工抛光和数控抛光的粗糙度、残余应力和硬化程度相似，但手工抛光表面存在许多微小的表面缺陷。GCP、MCP、GMP 和 MMP 的疲劳寿命逐渐降低。因此，GCP 的整合工艺可以产生更好的表面完整性，包括表面粗糙度、硬化程度和残余应力分布。

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Surface integrity and fatigue lifeof GH4169 by combined process of milling, grinding, and polishing

The effect of six processes including M (milling), G (grinding), MMP (milling and manual polishing), GMP (grinding and manual polishing), MCP (milling and CNC polishing), GCP (grinding and CNC polishing) on surface integrity and fatigue life of GH4169 are studied in this paper. The results show that grinding produce a larger degree of hardening compared to milling, and residual stress of grinding surface and milling surface are respectively compressive and tensile. Polishing can significantly reduce the surface roughness formed by the previous process. Surface tensile residual stress of milling is converted into compressive stress after polishing, while the degree of hardening and residual stress of grinding surface has no significant change after polishing. The roughness, residual stress, and hardening degree of the manual polishing and CNC polishing are similar, but there are many micro surface defects in the manual polishing surface. The fatigue life of GCP, MCP, GMP, and MMP gradually decreases. Therefore, the integration process of GCP can produce better surface integrity including surface roughness, hardening degree, and residual stress distribution.

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 工程技术-工程：机械

CiteScore

5.10

自引率

30.80%

发文量

167

审稿时长

5.1 months

期刊介绍： Manufacturing industries throughout the world are changing very rapidly. New concepts and methods are being developed and exploited to enable efficient and effective manufacturing. Existing manufacturing processes are being improved to meet the requirements of lean and agile manufacturing. The aim of the Journal of Engineering Manufacture is to provide a focus for these developments in engineering manufacture by publishing original papers and review papers covering technological and scientific research, developments and management implementation in manufacturing. This journal is also peer reviewed. Contributions are welcomed in the broad areas of manufacturing processes, manufacturing technology and factory automation, digital manufacturing, design and manufacturing systems including management relevant to engineering manufacture. Of particular interest at the present time would be papers concerned with digital manufacturing, metrology enabled manufacturing, smart factory, additive manufacturing and composites as well as specialist manufacturing fields like nanotechnology, sustainable & clean manufacturing and bio-manufacturing. Articles may be Research Papers, Reviews, Technical Notes, or Short Communications.