铁芯叠装强度与护套过盈量分析  

作　　者：雷乾勇 王燕 柴进 

机构地区：[1]贵州航天林泉电机有限公司航空航天精密微特电机技术重点实验室,贵阳550000

出　　处：《科技创新与应用》2024年第25期1-4,共4页Technology Innovation and Application

基　　金：航天科工集团国防基础科研项目(JCKY2022204C024)。

摘　　要：该文采用有限元法对电机铁芯加工中典型的叠铆工艺进行仿真分析,分别计算量中过盈量状态下的叠铆强度,随着过盈量的增加,冲片之间的叠铆强度越高。采用高频加热护套后当过盈量为0.03 mm时,护套上的应力约为75 MPa;当过盈量为0.04 mm时,护套内的应力大于300 MPa达到了330 MPa。为避免护套在装配和翻遍过程中破损,应选择转子护套的过盈量为0.03 mm。This paperuses the finite element method to simulate and analyze the typical lamination riveting process in the machining of motor core.The lamination riveting strength under the interference state of quantity 4 is calculated separately.As the interference amount increases,the lamination riveting strength between the punched pieces becomes higher.When using a high-frequency heating sheath,the stress on the sheath is about 75 MPa when the interference is 0.03 mm,as shown in the following figure.When the interference is 0.04 mm,the stress inside the sheath is greater than 300 MPa and reaches 330 MPa.In order to avoid damage to the sheath during assembly and flipping,the interference fit of the rotor sheath should be selected as 0.03 mm.

关 键 词：有限元 铁芯 高频加热 跌落 强度 过盈量 

分 类 号：TG385[金属学及工艺—金属压力加工]