锻压技术

基于FEA的TC4钛合金激光/超声辅助V型弯曲工艺

英文标题：Laser/ultrasonic assisted V-type bending process of TC4 titanium alloy based on FEA

分类号：TG302

出版年,卷(期):页码：2025,50(8):64-71

摘要：

针对钛合金室温下成形难度大、成形精度低等问题，提出在弯曲过程中施加激光/超声复合能场的辅助弯曲工艺。基于ANSYS软件对TC4钛合金普通V型弯曲、激光辅助V型弯曲、激光/超声辅助V型弯曲3种工艺进行有限元分析，通过分析弯曲件几何形状、回弹角度和等效应变等结果，确定了弯曲力、激光和超声振动对钛合金弯曲工艺的影响规律。研究结果表明，激光/超声辅助V型弯曲过程中，利用激光产生局部高温和超声振动产生的表面效应与体积效应，以及激光/超声振动能量的复合效应，较好地抑制了钛合金弯曲件的回弹，进一步提高了钛合金弯曲件质量,并且该方法具有工艺简单、可实现性强的优点。

Aiming at the problems of significant forming difficulty and low forming accuracy of titanium alloy at room temperature, an auxiliary bending process with laser/ultrasonic composite energy field during bending process was proposed. Based on the ANSYS software, finite element analyses of three processes, namely, ordinary V-type bending, laser assisted V-type bending and laser/ultrasonic assisted V-type bending of TC4 titanium alloy, were carried out. The influence laws of bending force, laser and ultrasonic vibration on the bending process of titanium alloy were determined by the analysis results of geometric shape, springback angle and equivalent strain of the bent part. The results show that during the laser/ultrasonic assisted V-type bending process, the springback of titanium alloy bent parts is better suppressed by utilizing the local high temperature generated by the laser,and the surface and volume effects produced by the ultrasonic vibration, as well as the composite effect of the laser/ultrasonic vibration energy, and the quality of titanium alloy bent parts is further improved. Moreover, this method has the advantages of process simplicity and excellent implementability.

基金项目：

国家自然科学基金资助项目（52075347）；辽宁省自然科学基金资助项目（2022-MS-295）

作者简介：冯卓（2000-），男，硕士研究生 E-mail：2573879247@qq.com 通信作者：高铁军（1977-），男，博士，教授 E-mail：tiejun_gao@163.com

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