| 发明名称 |
PROCESS FOR PRODUCING A CAST MACHINE PART WITH A MULTIPLE-PART BEARING ASSEMBLY FORMED BY FRACTURE |
| 摘要 |
<p>PCT No. PCT/EP96/05484 Sec. 371 Date Apr. 6, 1999 Sec. 102(e) Date Apr. 6, 1999 PCT Filed Dec. 7, 1996 PCT Pub. No. WO97/22812 PCT Pub. Date Jun. 26, 1997A core is formed and a prefabricated bearing bore is provided. Two separate projections are provided on the core wherein free projection edges of the two separate projections have a respective shaping radius between R=0mm and R</=0.45mm. Subsequently indentations are produced in a circumferential area of the bearing bore by the two separate projections on the core wherein the indentations serve as fracture notches. The cast engine part is then formed by casting metal around the core using said fraction notches as incipient crack sites.</p> |
| 申请公布号 |
EP0868614(A1) |
申请公布日期 |
1998.10.07 |
| 申请号 |
EP19960942374 |
申请日期 |
1996.12.07 |
| 申请人 |
BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT;FRITZ WINTER EISENGIESSEREI GMBH &, CO. KG |
发明人 |
LUCHNER, CLEMENS;HENKEL, HORST |
| 分类号 |
B22C9/10;B22D15/02;B22D29/00;B23D31/00;F02F7/00;F16C9/02;F16C9/04;(IPC1-7):F16C9/02 |
主分类号 |
B22C9/10 |
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