摘要
金属增材制造是制造强国战略下推动我国高端装备制造业转型升级的重点发展方向。电弧增材制造以其高沉积效率、低成本、可进行复杂结构直接成形等优势受到了广泛的关注。但增材过程中涉及的物理过程复杂,成形质量与精度面临很大挑战。针对电弧增材制造技术短流程、长周期的制造特征,讨论如何从热源上降低成形偏差、从过程上降低制造误差、从结果上改善成形精度,介绍了一系列创新的热源调制、过程控制与结果优化的方法策略,总结了现有技术存在的问题与面临的挑战,为如何进一步提升电弧增材过程的成形控制效果提出了几点思考。
Metal additive manufacturing is a key direction for promoting the transformation and upgrading of China's high-end equipment manufacturing industry under the strategy of becoming a manufacturing powerhouse,and arc additive manufacturing,with its advantages of high deposition efficiency,low cost and the ability to directly form complex structures,has attracted widespread attention.The physical processes involved in additive manufacturing,however,are complex,and the forming quality and precision face geeat challenges.This paper focusing on the manufacturing characteristics of short process and long cycle in arc additive manufacturing,discusses how to reduce forming deviations from the heat source,deminish manufacturing errors from the process and improve forming precision from the results.A series of innovative methods and strategies for heat source modulation,process control and result optimization are introduced,the existing problems and challenges faced by current technologies are summerized,and some cogitations on how to further enhance the forming control effect of the arc additive process are put forward.
作者
蒋凡
杨迪
张国凯
许志合
蔡新翰
闫朝阳
陈树君
JIANG Fan;YANG Di;ZHANG Guokai;XU Zhihe;CAI Xinhan;YAN Zhaoyang;CHEN Shujun(Engineering Research Center of Advanced Manufacturing Technology for Automotive Components,Ministry of Education,Beijing University of Technology,Beijing 100124,China;State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin 150001,China)
出处
《机械制造与自动化》
2024年第2期1-10,共10页
Machine Building & Automation
基金
国家自然科学基金项目(52322508)
现代焊接与连接国家重点实验室开放课题项目(AWJ-23M21)。
关键词
电弧熔丝增材制造
解耦热源
轨迹规划
增减材复合制造
成形控制
wire arc additive manufacturing
decoupled heat source
path planning
hybrid additive and subtractive manufacturing
forming control
