锻压技术

铜合金表面织构冷压成形实验研究

英文标题：Experimental research on cold press forming for copper alloy surface texture

分类号：GT306

出版年,卷(期):页码：2022,47(1):196-202

摘要：

研究了一种高效低成本的表面织构加工方法——表面织构冷压成形工艺，并验证了其制备功能性表面织构的可行性。将铜合金在不同温度下退火制备不同晶粒尺寸的试样，通过自行开发的表面织构冷压成形系统，对铜合金进行圆形凹坑表面织构冷压成形实验。使用超景深三维显微镜对织构形貌进行分析，并研究了不同载荷、晶粒尺寸对单点表面织构冷压成形结果的影响，以及不同凹坑间距对两点织构冷压成形结果的影响。通过表面织构冷压成形实验在H62铜合金表面制造了变形影响区中直径为Φ336.0~Φ720.6 μm、深度为27.33~110.10 μm的圆形凹坑织构。研究结果表明，载荷、晶粒尺寸、凹坑间距对表面织构的成形结果有显著影响。实验确定了冷压成形表面织构的工艺参数，验证了冷压成形制备表面织构的可行性。

A high-efficiency and low-cost surface texture processing method, namely, surface texture cold press forming process was studied, and the feasibility of preparing functional surface textures was verified. Then, the copper alloy was annealed at different temperatures to prepare samples with different grain sizes, and the cold press forming experiment of the circular pit surface texture for copper alloy was conducted by the self-developed surface texture cold press forming system. Furthermore, the texture topography was analyzed by a three-dimensional microscope with ultra-depth of field, and the influences of different loads and grain sizes on the cold press forming results of single-point surface texture and the influence of different pit spacings on the cold press forming results of two-point texture were studied. Finally, through cold press forming experiments of surface texture, the circular pit textures with the diameter of Φ336.0~Φ720.6 μm and the depth of 27.33~110.10 μm for deformation affected zone were fabricated on the surface of H62 copper alloy. The research results show that the load, grain size and pit spacing have a significant effect on the surface texture structure. The experiment determines the process parameters of the cold press forming for surface texture and verifies the feasibility of cold press forming to prepare the surface texture.

基金项目：

国家自然科学基金资助项目（51975396）；山西省留学人员科技活动择优资助项目（20200023）；山西省回国留学人员科研经费资助项目（2021-138）

作者简介：高壮（1997-），男，硕士研究生 E-mail：1056840225@qq.com 通信作者：刘志奇（1972-），男，博士，教授 E-mail：liuzhiqi@tyust.edu.cn

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