Transactions of Materials and Heat Treatment

Title：Path planning of curved surface laser cladding based on five-axis linkage

Authors： Chen Wei1 Liu Jie1 Wu Hao1 Cao Yishu2 Bai Ying2 Zhang Xiaoji2 Chen Chungang2

Unit：（1. School of Mechanical Engineering Jiangsu University Zhenjiang 212013 China 2. Wuxi Shuguang Precision Industry Co. Ltd. Wuxi 214145 China)

KeyWords： curved surface part five-axis linkage path planning laser cladding hot stamping die

ClassificationCode：TN249；TH117.1

year,vol(issue):pagenumber：2025,50(4):165-172

Abstract：

In order to improve the forming precision and quality of laser cladding for curved surface die， laser cladding processing based on five-axis linkage was carried out， which adopted the strategy that the axis of nozzle coincided with the normal vectors of curved surface machining points. Firstly， the curved surface equidistant trajectory generation method was adopted according to curved surface features， and the intersection line was described by NURBS curve. Secondly， the laser focal depth was used as the chord height constraint condition of laser cladding processing trajectory to obtain the interpolation point， the cladding surface was fitted by NURBS curved surface,and the interpolation point processing normal vector was analyzed by differential analysis. Finally， the experiment of five-axis linkage curved surface laser cladding was carried out， and the macroscopic morphology， microstructure and mechanical properties of cladding layer obtained in the experiment were analyzed. The results show that the shape control and quality of curved surface cladding layer are good， which verifies the applicability of the path planning method.

Funds：

基金项目:国家自然科学基金资助项目（51875263）；无锡市“太湖之光”科技攻关（产业化关键技术攻关）项目（WX0304-B010301220019PD）

作者简介：陈炜（1965-），男，博士，教授

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