轴承
軸承
축승
BEARING
2014年
4期
23-26
,共4页
轮毂轴承%闭式模锻%精锻%亚热成形%数值模拟
輪轂軸承%閉式模鍛%精鍛%亞熱成形%數值模擬
륜곡축승%폐식모단%정단%아열성형%수치모의
hub bearing%closed type die forging%precision forging%semi-hot forming%numerical simulation
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1000℃，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。
提齣瞭輪轂軸承外圈的亞熱閉式精鍛成形工藝，與傳統開式熱模鍛工藝比較，具有簡化工藝、提高材料利用率、節約能源的優點。採用DEFORM-3D軟件對輪轂軸承外圈的亞熱閉式精鍛工藝進行瞭數值模擬，分析瞭外圈亞熱閉式鍛造中金屬流動、填充、載荷、應力、應變、溫度及模具受力等問題。結果錶明，噹始鍛溫度為1000℃，模具壓下速度為20 mm/s時，採用該閉式精鍛工藝能穫得質量較好的外圈鍛件。
제출료륜곡축승외권적아열폐식정단성형공예，여전통개식열모단공예비교，구유간화공예、제고재료이용솔、절약능원적우점。채용DEFORM-3D연건대륜곡축승외권적아열폐식정단공예진행료수치모의，분석료외권아열폐식단조중금속류동、전충、재하、응력、응변、온도급모구수력등문제。결과표명，당시단온도위1000℃，모구압하속도위20 mm/s시，채용해폐식정단공예능획득질량교호적외권단건。
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 mm/s,the good outer ring forging is manufactured by using closed type precision forging process.
