轮毂轴承外圈亚热闭式精锻成形技术  

Semi-Hot Closed Type Precision Forging Process for Outer Rings of Hub Bearings

作　　者：李振红[1] 黄英娜[1] 孔凡新[1] 

机构地区：[1]南京工程学院材料工程学院,南京211167

出　　处：《轴承》2014年第4期23-26,共4页Bearing

基　　金：国家自然科学基金项目(51075197);南京工程学院科研基金项目(YKJ201003)

摘　　要：提出了轮毂轴承外圈的亚热闭式精锻成形工艺,与传统开式热模锻工艺比较,具有简化工艺、提高材料利用率、节约能源的优点。采用DEFORM-3D软件对轮毂轴承外圈的亚热闭式精锻工艺进行了数值模拟,分析了外圈亚热闭式锻造中金属流动、填充、载荷、应力、应变、温度及模具受力等问题。结果表明,当始锻温度为1 000℃,模具压下速度为20 mm/s时,采用该闭式精锻工艺能获得质量较好的外圈锻件。A semi - hot closed type precision forging process for outer rings of hub bearings is presented. Compared with traditional open type hot die forging process, the semi - hot closed type forging process has the advantage of simpli- fying process, improving material utilization and saving energy. The numerical simulation of semi - hot closed type pre- cision forging process for outer rings of hub bearings is carried out by using DEFORM -3D software. The metal flow, filling, load, stress, strain, temperature and die stress in semi - hot closed type forging of outer rings are analyzed. The results show that when the initial forging temperature is 1 000 ℃and the punch speed is 20 ram/s, the good outer ring forging is manufactured by using closed type precision forging process.

关 键 词：轮毂轴承 闭式模锻 精锻 亚热成形 数值模拟 

分 类 号：TH133.33[机械工程—机械制造及自动化] TG312[金属学及工艺—金属压力加工]