Study on the surface constitute properties of high-speed end milling aluminum alloy

2017 3rd International Conference on Applied Materials and Manufacturing Technology

Huang, Xiaoming^1 ; Li, Hongwei^1 ; Yumeng, Ma^2

Mechatronics Engineering Department, Binzhou University, China^1

College of Aeronautical Engineering, Binzhou University, China^2

关键词: Characteristics parameters;    Constitutive properties;    High speed end milling;    Machining parameters;    Milling parameters;    Physical and mechanical properties;    Strain-hardening exponent;    Stress strain microprobe systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/242/1/012039/pdf
DOI  :  10.1088/1757-899X/242/1/012039

来源: IOP

【 摘 要 】

The physical and mechanical properties of the metal surface will change after the metal cutting processing. The comprehensive study of the influence of machining parameters on surface constitute properties are necessary. A high-speed milling experiment by means of orthogonal method with four factors was conducted for aluminum alloy7050-T7451. The surface constitutive properties of the Al-Alloy surface were measured using SSM-B4000TM stress-strain microprobe system. Based on all the load-depth curves obtained, the characteristics parameters such as strain hardening exponent n and yield strength σyof the milling surface are calculated. The effect of cutting speed, feed rate, and width and depth of cut on n and σywas investigated using the ANOVA techniques. The affecting degree of milling parameters on n and σywas v>fz> ape. The influence of milling parameters on n and σ y was described and discussed.