摘要
为了提高模具钢EX1性能,课题组采用5kW光纤激光加工制造系统激光器,对EX1钢表面进行激光强化处理。采用扫描电子显微镜、显微硬度计和摩擦磨损试验机等研究了激光强化工艺参数(激光功率P,扫描速度v)对EX1钢激光淬火层的组织、硬度及摩擦磨损的影响。研究结果表明:激光强化处理后硬化层的显微组织明显细化,淬火区硬度明显高于基体。该研究提高了EX1钢表面的光滑度,降低了摩擦因数。
In order to improve the performance of die steel EX1,the surface laser hardening was treated on EX1 steel with the laser of the 5 kW fiber laser processing and manufacturing system. The scanning electron microscope,microhardness tester and friction tester were used to study the influence of laser processing parameters ( laser power P,scanning speed v) on the microstructure,hardness and wear resistance of EX1 steel. The results show that the microstructure of the hardened layer can be significantly refined,the hardness is significantly higher than that of the matrix,the smoothness of the surface is improved and the friction coefficient is reduced.
作者
陈成
苏钰
桑震
李莹
冯萧萧
崔浩田
雷佳乐
CHEN Cheng;SU Yu;SANG Zhen;LI Ying;FENG Xiaoxiao;CUI Haotian;LEI Jiale(School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;Chongqing Youte Tooling Co.,Ltd.,Chongqing 401329,China)
出处
《轻工机械》
CAS
2019年第3期41-45,共5页
Light Industry Machinery
基金
国家自然科学基金(51301105)
关键词
压铸模具
EX1钢
激光硬化
激光加工工艺参数
摩擦磨损性能
die casting mould
EX1 steel
laser hardening
laser processing parameters
friction and wear properties
