Flash removal |
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| 申请号 | US3772946D | 申请日 | 1972-05-04 | 公开(公告)号 | US3772946A | 公开(公告)日 | 1973-11-20 |
| 申请人 | KIEKHAEFER AEROMARINE MOTORS; | 发明人 | SARRA S; | ||||
| 摘要 | Following die casting of an aluminum alloy cylinder block with an insert liner having openings extending through the liner and block to the outside, the flash across the opening is removed by employing a mandrel in the liner with a passage through the mandrel registering with the liner opening, and inserting a male punch through the opening from the outside to shear the flash around the edge of the opening and break it loose after which it falls out through the passage in the mandrel upon removal of the punch and mandrel. | ||||||
| 权利要求 | 1. The method of removing flash from port openings in a die cast cylinder block having an insert cylinder liner, comprising supporting the block upon a mandrel substantially fitting within the cylinder liner, forcing a punch axially into the port opening and through the interface between the liner and the die cast material to loosen the flash at its root, and thereafter retracting the punch and removing the cylinder block from the mandrel whereby the loosened flash falls away. 2. The method of claim 1 and employing the punch to force the severed flash into an enlarged passage through the mandrel to facilitate release of the flash upon removal of the cylinder block from the mandrel. |
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| 说明书全文 | |||||||
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