带仓连皮闭式锻造齿轮坯预锻成形过程的CAE分析  

CAE analysis on the process of gear pre-forging forming with flashless

作　　者：李东成[1] 姚朋[1] 何东野[1] 李松阳[2] 李兴华 陈雪梅 

机构地区：[1]吉林大学辊锻工艺研究所,吉林长春130025 [2]中国汽车工业工程公司,天津300113 [3]一汽解放有限公司长春特种车分公司,吉林长春130000

出　　处：《锻压技术》2014年第12期6-9,共4页Forging & Stamping Technology

基　　金：吉林省教育厅资助项目(3d514z712459)

摘　　要：带仓连皮可以容纳多余金属,可以自动调整坯料体积的变化。为了实现无飞边带仓连皮的齿轮坯热闭式锻造,针对一汽巴勒特锻造有限公司的开式锻造齿轮坯,采用Deform软件对带仓连皮闭式锻造齿轮坯的预锻件进行了成形过程模拟分析。模拟分析结果表明,立式飞边处由于内部生成热的温度升高而使该处材料塑性增加,促进此处材料的进一步流失而不利型腔充填;采用凹陷冲头可以抑制立式飞边的产生;预锻过程的连皮位置变形剧烈,变形抗力大,采用材质良好的镶块可以提高模具寿命。Flash with gutter has a capacity of storing unnecessary metal and adjusting the changing volume of billet automatically. In order to realize the heating closed forging of gear without flash and gutter, the process of gear per-forging forming was analyzed by Deform soft- ware for a flashless open-forging piece from Balat FAW Foundry Co. , Ltd. The results show that more heat will be generated, which in- creases the plasticity at vertical flash, meanwhile the material will drain out and be unfavorable for filling the cavity. The generating of vertical non-flash can be avoided by the sunken punch. In the pre-forging process, the location with skins produces greater deformation and larger deformation resistance. The lifetime of die can be prolonged by the application of high-quality inserts.

关 键 词：带仓连皮 锻造齿轮 无飞边 数值模拟 

分 类 号：TG316[金属学及工艺—金属压力加工]