铜合金表面织构冷压成形实验研究

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...

Experimental research on cold press forming for copper alloy surface texture

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.