摘要
针对再制造工程在发展和应用中面临的挑战和需求,阐述了增材再制造技术的概念,探讨了基于激光、电子束、电弧的熔敷成形技术以及电弧-激光复合熔敷、电弧-磁场复合熔敷、激光-磁场复合熔敷、双激光复合锻打成形等技术的特点及应用,重点分析了纵向磁场对电弧温度场以及旋转磁场对激光熔敷层组织的影响。结果表明:电弧熔敷成形过程引入纵向磁场,电弧中心温度降低,电弧对基体的热影响减小;激光熔敷成形铝基非晶材料过程加入旋转磁场,有利于非晶相的形成和组织缺陷的减少,熔敷层的耐蚀性和力学性能提高。最后指出能束能场增材再制造技术的发展趋势是向多能束能场及后处理复合、再制造全过程智能化和装备集成移动式方向发展。
To address the challenges and needs of remanufacturing engineering in its development and application,additive remanufacturing technology was elaborated,and the characteristics and applications of additive forming technologies were discussed in details including laser cladding,arc cladding,electron beam cladding,laser-arc hybrid cladding,arc-magnetic field hybrid cladding,laser-magnetic field hybrid cladding,and dual-laser forging cladding.The influence of longitudinal magnetic field on the arc temperature field and the rotating magnetic field on the microstructure of the laser cladding layer were emphatically analyzed.The results show that with the longitudinal magnetic field the center temperature of the arc decrease and the thermal influence of the arc on the substrate reduced during arc cladding.When rotating magnetic field is introduced in laser cladding forming of Al-based amorphous materials,it is beneficial to the formation of amorphous phase and the reduction of tissue defects,as well as improvement of the corrosion resistance and mechanical properties of the deposited layer.Finally,it is pointed out that additive remanufacturing technologies based on energy beam and energy field developed towards the combination of multiple energy beams and energy fields and post-processing,intellectualization of the remanufacturing process and mobile integrated equipment in the future.
作者
王启伟
朱胜
陈春良
王晓明
李卫
WANG Qiwei;ZHU Sheng;CHEN Chunliang;WANG Xiaoming;LI Wei(Institute of Advanced Wear &Corrosion Resistant and Functional Materials,Jinan University,Guangzhou 510632,China;National Key Laboratory for Remanufacturing,Army Academy of Armored Forces,Beijing 100072,China;Department of Equipment Support and Remanufacturing,Army Academy of Armored Forces,B eijing 100072,China)
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2018年第6期1-8,共8页
China Surface Engineering
基金
国家重点研发计划(2018YFB1105800)~~
关键词
能束
能场
增材成形
再制造工程
energy beam
energy field
additive forming
remanufacturing engineering
