Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1994-02-28
1995-10-31
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Assembling or joining
298972, 72369, B23P 1700
Patent
active
054617677
ABSTRACT:
In manufacturing a metal bellows of high rigidity by using relatively simple equipment, a plurality of annular concavities are formed around the outer periphery of an unprocessed tube to form an intermediate product. Then, a core iron is inserted into the intermediate product while the annular concavities around the outer periphery are braced. Subsequently, the intermediate product is pressed in its axial direction to be formed into the metal bellows.
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Eley Timothy V.
Nguyen Khan V.
NSK Ltd.
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