Metal deforming – By application of fluent medium – or energy field – Using fixed die
Patent
1993-07-29
1996-01-09
Jones, David
Metal deforming
By application of fluent medium, or energy field
Using fixed die
72 62, 294211, B21D 915
Patent
active
054818923
ABSTRACT:
An apparatus and method for forming a one-piece, complex-shaped tubular member from a tubular blank is provided. The tubular blank is placed in a die cavity defining a tube having at least two expanded portions and a bend therein. As the die cavity is closed around the tubular blank to form the bend, the interior of the tubular blank is pressurized to expand the tubular blank into the at least two expanded portions defined by the die cavity. When the bent and expanded tubular blank is removed from the die cavity, the ends of the tubular blank are cropped to form the finished tubular member.
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Lowen Donald F.
Roper Ralph E.
Tyger Douglas W.
Webb Gary A.
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