Metal working – Method of mechanical manufacture – Obtaining plural product pieces from unitary workpiece
Patent
1997-03-27
1998-12-29
Sewell, Paul T.
Metal working
Method of mechanical manufacture
Obtaining plural product pieces from unitary workpiece
B23P 1700
Patent
active
058528636
ABSTRACT:
A method for producing a transverse force bolt having a sheath made of a rod-shaped pipe of stainless steel which is drawn onto a rod-shaped core of conventional structural steel. In the process the exterior dimension is simultaneously calibrated. The rod-shaped semi-finished product is subsequently cut into rods, such as with a saw. With a hydraulic press the core is pushed out of the rod by a length and the ejected portion is cut off. Subsequently the core is pushed back by one-half the length of the cut-off portion and the open ends of the sheath are closed. The method produces a transverse force bolt of particularly great strength, which is very precise and has an extremely low cost.
Breuer Gottfried
Muller Erich
Cozart Jermie E.
Pecon AG
Sewell Paul T.
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