Method of manufacturing shear blades for shearing hot glass

Details Method of manufacturing shear blades for shearing hot glass Method of manufacturing shear blades for shearing hot glass

1983-09-09

1985-05-07

Parker, Roscoe V.

Metal deforming

With cutting

Severing a discrete piece from stock, work, or product

72364, 76101R, B21D 2800

Patent

active

045150028

ABSTRACT:
A method of making a shear blade for shearing gobs of hot glass without noticeable shear marks. The method comprises heating a blade of tool steel to a minimum of about 400.degree. F. (for 0.08-inch thick tool steel), stamping the desired outline shape of the heated blank by one set of dies and following by forming the blade in its final shape at such temperature by a second set of dies. The method involves heating thicker shapes at higher temperatures.

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