Research on Hybrid Manufacturing Technology of TC4 Titanium Alloy Connecting Box for Aircraft
Author of the article:WANG Rui;FENG Jun;LI Hui;YANG Jian;MA Jiankai
Author's Workplace：First Aircraft Institute of AVIC,Xi'an 710089,China;State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China
Key Words：TC4 titanium alloy forging substrate additive manufacturing hybrid manufacturing
Abstract：Taking TC4 titanium alloy connecting box as the object,the hybrid manufacturing technology of TC4 forging and laser three-dimensional forming was studied. By studying the influence of laser processing parameters and substrate preheating temperature on the hybrid manufacturing process of forging and laser three-dimensional forming,the optimal processing parameters of material additive manufacturing were determined. According to the design model,the TC4 titanium alloy connecting box was fabricated on the forging matrix by the optimal manufacturing process. The dimensions and internal defects of the parts were tested nondestructive,and the mechanical properties were evaluated. The load bearing test of TC4 titanium alloy connecting box was carried out. The results show that when the laser power is 1 500 W,the scanning speed is 15 mm/s,and the preheating temperature of the matrix is 400 ℃,the TC4 titanium alloy connecting box part manufactured by additive meets the manufacturing requirements,and passes the 100% bearing test.
