Experimental Study on the Axis Line Deflection of Ti6A14V Titanium Alloy in Gun-Drilling Process

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Li, Liang^1 ; Xue, Hu^1 ; Wu, Peng^1

Yancheng Institute of Technology, Yancheng, China^1

关键词: Axis line deflection;    Deep hole drilling;    Diameter error;    Difficult-to-cut materials;    Drilling process;    Large aircraft;    Optimized process;    Surface integrity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012012/pdf
DOI  :  10.1088/1757-899X/301/1/012012

来源: IOP

【 摘 要 】

Titanium alloy is widely used in aerospace industry, but it is also a typical difficult-to-cut material. During Deep hole drilling of the shaft parts of a certain large aircraft, there are problems of bad surface roughness, chip control and axis deviation, so experiments on gun-drilling of Ti6A14V titanium alloy were carried out to measure the axis line deflection, diameter error and surface integrity, and the reasons of these errors were analyzed. Then, the optimized process parameter was obtained during gun-drilling of Ti6A14V titanium alloy with deep hole diameter of 17mm. Finally, we finished the deep hole drilling of 860mm while the comprehensive error is smaller than 0.2mm and the surface roughness is less than 1.6μm.