Metal working – Bias cutting of tubular stock
Patent
1997-02-03
1998-08-18
Bryant, David P.
Metal working
Bias cutting of tubular stock
102514, 102517, B21K 2106
Patent
active
057943206
ABSTRACT:
The invention relates to a highly accurate core bullet with a massive core (2) and a jacket (1) for a fire arm. The core (2) extends over the entire length of the bullet and has a diameter along at least the largest portion of its length which is significantly smaller than the outside diameter of the finished bullet (1). The invention also relates to a method for manufacturing such bullet by making a bullet blank (7) wherein the shank (4) and the most forward portion of the nose-end (3) are machined to finish size; by making the jacket blank (8) and attaching the same to the shank (4) of the core blank (7), wherein the jacket blank (8) has an oversized diameter and engages in a formfitting manner with the core blank (7) at a circular step (5) and, if necessary, at a shoulder at the rear head (6); and securing the bullet blank so made between turning centers and machining the final bullet contour with high precision centered with respect to the core.
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European Search Report Corresponding to EP 97 10 0478.
Derwent Abstract for DE 25 25 230.
Katzmaier Wolfgang
Wernz Albert
Bryant David P.
Heckler & Koch GmbH
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