Method of producing castings with means to facilitate burr remov

Details Method of producing castings with means to facilitate burr remov Method of producing castings with means to facilitate burr remov

1982-09-29

1985-01-22

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

29418, 29DIG5, 29DIG26, 164 691, 164262, 219 69R, 219121PC, 219121LG, B22D 11126, B22D 11128

Patent

active

044942974

ABSTRACT:
A method is described for producing castings and removing burrs produced during the casting at the parting line of the casting mold and in regions where cores are supported in core-supporting holes formed in the mold. The casting mold is so shaped that a well-defined burr, which includes a substantially uninterrupted flange projecting from the casting, is formed in the region of the casting which solidifies opposite the mold parting line. The mold may also be so shaped that a further well-defined burr, which includes a further substantially uninterrupted flange projecting from the casting, is formed in the region of the casting which solidifies where a core of the casting mold enters a core-supporting hole. After removal of the casting from the mold, the or each flange is removed by a mechanical cutting tool or by gas cutting, preferably by employing an industrial robot to effect relative movement between the flange and the flange-removing means.

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