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飞机用TC4钛合金连接箱体复合制造技术研究
Research on Hybrid Manufacturing Technology of TC4 Titanium Alloy Connecting Box for Aircraft
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- DOI:
- 作者:
- 王瑞 冯军 李辉 杨健 马健凯
WANG Rui;FENG Jun;LI Hui;YANG Jian;MA Jiankai
- 作者单位:
- 航空工业第一飞机设计研究院 西北工业大学凝固技术国家重点实验室
First Aircraft Institute of AVIC,Xi'an 710089,China;State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China
- 关键词:
- TC4钛合金 锻件基体 激光立体成形 复合制造
TC4 titanium alloy forging substrate additive manufacturing hybrid manufacturing
- 摘要:
- 以TC4钛合金连接箱体为对象,研究了TC4锻件与激光立体成形复合制造技术。通过研究激光工艺参数及基体预热温度对锻件与激光立体成形复合制造工艺的影响,确定了増材制造最佳工艺参数;按照设计模型,在锻件基体上用该増材制造最优工艺制备了TC4钛合金连接箱体;对零件尺寸、内部缺陷进行了无损检测,评价了力学性能,并对TC4钛合金连接箱体进行了承载试验研究。结果表明,当激光功率为1 500 W,扫描速度为15 mm/s,基体预热温度为400℃时,增材制造的TC4钛合金连接箱体零件满足制造要求,并通过了100%承载试验考核。
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.