Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2021 , Vol. 55 >Issue 6: 750 - 756

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2020.195

Surface Micro-Texture and Cutting Characteristics of Milling Cutter for Die-Casting Aluminum Alloy

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  • 1. School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
    2. Special Equipment Institute, Hangzhou Vocational and Technical College, Hangzhou 310018, China

Received date: 2020-10-21

  Online published: 2021-06-08

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Abstract

Aimed at the problems of low processing accuracy and surface quality of die-casting aluminum alloy under the influence of cutting force, a method of using surface micro-textured milling cutter with groove and V-shaped arrays on the rake face was proposed. The variations of milling forces were monitored and analyzed by using tri-direction-force transducer, and the spectrum characteristics of the y-direction milling force (Fy) was emphatically analyzed. The spectrum analysis diagrams of Fy of three different milling cutters were obtained by fast Fourier transform. The milling performance of the micro-textured milling cutters was evaluated by surface topography and surface roughness. The results show that compared with the average values in the x, y, and z directions of the conventional milling cutter, the values of the groove micro-structured milling cutter are reduced by 3.8%, 0.29%, and 11.7%, while those of the V-shaped micro-structured milling cutter are reduced by 8.5%, 14.3%, and 12.4%. The relationship between high frequency amplitudes of Fy at 6 times spindle frequency are proposed as conventional milling cutter>groove arrays milling cutter>V-shaped arrays milling cutter. Compared with the conventional milling cutter, the surface roughness is decreased when using micro-textured milling cutters, and the surface quality of the workpiece processed by the V-array milling cutter is the best. This paper will provide a theoretical basis for precision milling of die-cast aluminum alloys.

Key words： surface micro-texture; milling die-casting aluminum alloy; milling force; spectrum characteristics; surface roughness

Cite this article

HE Lihua, PAN Jianfeng, NI Jing, FENG Kai, CUI Zhi . Surface Micro-Texture and Cutting Characteristics of Milling Cutter for Die-Casting Aluminum Alloy[J]. Journal of Shanghai Jiaotong University, 2021 , 55(6) : 750 -756 . DOI: 10.16183/j.cnki.jsjtu.2020.195

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