| 发明名称 | Method for producing a motor vehicle axle component | ||
| 摘要 | A method for producing a motor vehicle axle component includes the method steps of providing a metal strip made of a hardenable steel material, hot rolling the metal strip and subsequent cold rolling with more than 4% rolling reduction degree, annealing at 600 to 800° C., in particular at 650 to 750° C. for a time period between 10 and 20 hours, in particular 13 to 17 hours, cutting the heat treated metal strip to cut sheet metals, forming the metal cut into a motor vehicle axle component, austenizing and quenching the motor vehicle axle component, wherein the motor vehicle axle component has at least in a surface region a grain size characteristic value according to ASTM-E 112 of greater than 9. | ||
| 申请公布号 | US9475107(B2) | 申请公布日期 | 2016.10.25 |
| 申请号 | US201414172427 | 申请日期 | 2014.02.04 |
| 申请人 | BENTELER AUTOMOBILTECHNIK GMBH | 发明人 | Frehn Andreas;Ilskens Ralf;Howekenmeier Dominik;Hatt Jeffrey M. |
| 分类号 | C21D9/00;B21B1/08;C21D1/18;C21D1/20;C21D1/673 | 主分类号 | C21D9/00 |
| 代理机构 | Henry M. Feiereisen LLC | 代理人 | Henry M. Feiereisen LLC |
| 主权项 | 1. A method for producing a motor vehicle axle component, comprising: providing a metal strip made of a hardenable steel material; hot rolling the metal strip and subsequent cold rolling with more than 4% rolling reduction degree; annealing the metal strip at 600 to 800° C. for a time period between 10 and 20 hours; cutting a metal sheet from the heat treated metal strip; forming the cut metal sheet into the motor vehicle axle component; and austenitizing and quenching the motor vehicle axle component, wherein the motor vehicle axle component has at least in a surface region a grain size characteristic value according to ASTM-E 112 of greater than 9. | ||
| 地址 | Paderborn DE | ||