Mold making

Details Mold making Mold making

1987-05-04

1991-05-28

Larson, Lowell A.

Metal deforming

By pulling workpiece through closed periphery die

Utilizing plural metal-deforming tools

72285, B21C 3715

Patent

active

050183788

ABSTRACT:
Molds for continuous casting machines are made by providing a plurality of different tubular blanks of copper or copper based alloys; selecting a particular blank and feeding same to a first working station in which the blank is provided with a thrust mount such as a rim against which a mandrel to be inserted can abut during subsequent working; a particular mandrel is selected from among a plurality of stored mandrels and forced into the rimmed tubular blank; by means of a die, the tubular blank is forced onto the mandrel in all around, tight, surface to surface contact while preferably a normal orientation of the die is maintained in relation to the mandrel passing through; thereafter the mandrel is recovered from the blank and either returned to the station of mandrel insertion or to the mandrel store.

REFERENCES:
patent: 2134620 (1938-10-01), McLay
patent: 4653306 (1987-03-01), Lazzerini
patent: 4722213 (1988-02-01), Enkvist

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