Process for the manufacture of metal tubes

Details Process for the manufacture of metal tubes Process for the manufacture of metal tubes

1994-05-11

1998-01-20

Bryant, David P.

Metal working

Method of mechanical manufacture

Utilizing transitory attached element or associated separate...

29890053, 138177, 72370, B23P 1700

Patent

active

057090211

ABSTRACT:
A seamless metal tube is made by elongating an assembly of a tube blank and a metal core by mechanical working, and then stretching the core plastically so that it diminishes in diameter sufficiently to permit its removal from the tube. The core metal is preferably a shape memory alloy.

REFERENCES:
patent: 2809750 (1957-10-01), Arenz
patent: 4186586 (1980-02-01), Takamura et al.
patent: 4300378 (1981-11-01), Thiruvarudchelvan
patent: 4653305 (1987-03-01), Kanamaru et al.
patent: 5056209 (1991-10-01), Ohashi et al.
Patent Abstracts of Japan vol. 12 No. 52 (M-668), 17 Feb. 1988 & JP, A, 62199218 (Furukawa Electric Co LTD) 2 Sep. 1987.

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