壳体压套工艺技术研究  

Research on Press-fitting Technology of Shells

作　　者：王军 张昌菊 张理博 罗成 Wang Jun;Zhang Chang-ju;Zhang Li-bo;Luo Cheng(AECC Guizhou Honglin Aviation Power Control Technology Co.,Ltd.,Guizhou Guiyang 550009)

机构地区：[1]中国航发贵州红林航空动力控制科技有限公司,贵州贵阳550009

出　　处：《内燃机与配件》2024年第24期23-26,共4页Internal Combustion Engine & Parts

摘　　要：针对航空发动机燃油附件壳体压套时频繁出现衬套压偏、压不到底的质量问题,分析了常规压套经验给定的工艺参数不能满足产品压套需求的原因及压套技术难点,为了确定不同压套条件的工艺参数,选取典型壳体压套结构,开展不同材料、不同加工方法条件下的压套实验。在已知过盈量的条件下,通过计算确定壳体加热温度、保温时间及衬套冷却温度,再根据计算出的压套瞬间间隙来确定加工过程需要控制的尺寸及形位公差要求,实验结果验证了理论计算的正确性,为壳体压套工艺的确定提供了理论依据。经过实际加工验证,实验方法得到的加工工艺及工艺参数可行,切实提高了壳体压套质量。Aiming at the quality problems that the bushings are frequently pressed askew and cannot be pressed to the bottom during the pressing of bushings in the fuel accessory housings of aero-engines,the reasons why the process parameters given by conventional pressing experience cannot meet the requirements of product bushing pressing and the technical difficulties of bushing pressing were analyzed.In order to determine the process parameters under different bushing pressing conditions,typical housing bushing pressing structures were selected,and bushing pressing experiments were carried out under the conditions of different materials and different processing methods.Under the condition of a known interference amount,the heating temperature of the housing,the heat preservation time and the cooling temperature of the bushing were determined through calculation.Then,according to the calculated instantaneous clearance during bushing pressing,the dimensions and geometric tolerance requirements that need to be controlled during the processing were determined.The experimental results verified the correctness of the theoretical calculations and provided a theoretical basis for the determination of the housing bushing pressing process.After verification in actual processing,the processing technology and process parameters obtained by the experimental method are feasible and have effectively improved the quality of housing bushing pressing.

关 键 词：壳体 压套 过盈量 瞬间间隙 工艺参数 

分 类 号：V23[航空宇航科学与技术—航空宇航推进理论与工程]