20CrNiMo与17Cr2Ni2Mo齿轮件性能差异

yaojm1960

20CrNiMo与17Cr2Ni2Mo齿轮件性能差异
2 |: l1 }" h1 K; Y- Ahttp://ads001.ebrun.com/delivery/lg.php?bannerid=1025&campaignid=785&zoneid=238&loc=http%3A%2F%2Fwww.3dportal.cn%2Fdiscuz%2Fviewthread.php%3Ftid%3D621029%26pid%3D3037178%26page%3D1%26extra%3Dpage%253D1%2526amp%253Bfilter%253Dtype%2526amp%253Btypeid%253D9%23pid3037178&referer=http%3A%2F%2Fwww.3dportal.cn%2Fdiscuz%2Fviewthread.php%3Ftid%3D621029%26extra%3Dpage%253D1%2526amp%253Bfilter%253Dtype%2526amp%253Btypeid%253D9&cb=de8f40c2e2


, ~5 a: B/ t' z( y此贴在减速机区讨论不够热烈，今移至此区请高手讨论：最近我单位在给外行星减速机图纸审查时遇到此类问题，设计方对行星减速机中的外啮合齿轮选用材料20CrNiMo,用户要求17Cr2Ni2Mo。用户认为20CrNiMo与17Cr2Ni2Mo相比，其热处理性能和机加工性能较差。正常热处理后残余奥氏体较多，机加时易产生裂纹！请大家谈谈看法！

[ 本帖最后由 yaojm1960 于 2008-12-7 12:30 编辑 ]