摘要
为了探索增材制造成型螺杆转子的可成型性,利用激光选区熔化技术对螺杆转子进行增材试验。在成型过程中发现阳转子经退火处理后凸齿顶端产生了裂纹,并结合ANSYS软件验证发现,裂纹易出现在尖角过渡处;通过分析其扫描策略的显微组织特性,成功成型了螺杆转子;随后对其内部组织进行硬度检测后发现,符合要求,并采用三坐标对阴阳转子尺寸精度进行了检测,其平均误差在0.1mm左右,可进入精磨阶段,极大减少了减材成形工序。
In order to explore the formability of forming screw rotor by adding materials,the laser selective melting technology is used to add materials to the screw rotor.During the forming process,it is found that cracks are found on the top of the male rotor's convex teeth after annealing treatment,which is verified by ANSYS software.It is found that the cracks are easy to appear at the sharp corner transition.By analyzing the microstructure characteristics of the scanning strategy,the screw rotor is successfully formed.Subsequently,the internal organization and hardness of the rotor is tested to meet the requirements,and the accuracy of the male and female rotors is tested using three coordinates.It is found that the average error is about O.1mm,which could enter the fine grinding stage,greatly reducing the reduction and forming process.
作者
赵佳磊
李志峰
刘安林
Zhao Jialei;Li Zhifeng;Liu Anlin(School of Aeronautical Materials Engineering,Xi'an Aeronautical Polytechnic Institute,Xi'an710089,China)
出处
《工具技术》
北大核心
2023年第9期98-103,共6页
Tool Engineering
基金
陕西省重点研发计划(2017ZDXM-GY-138)
陕西省教育厅科研计划(22JK0430)
陕西省教育厅2023年度一般专项科研计划项目(空压机复杂螺杆转子的增材成形技术研究)
西安航空职业技术学院2022年校级科研计划(22XHZK-07)。
关键词
螺杆转子
激光选区熔化技术
裂纹
screw rotor
laser selective melting technology
additive manufacturing
作者简介
第一作者:赵佳磊,硕士,助教,西安航空职业技术学院航空材料工程学院,710089西安市。
