Expanded cooling jacket assembly

Details Expanded cooling jacket assembly Expanded cooling jacket assembly

1979-05-07

1981-10-20

Combs, Ervin M.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29421R, 228157, B23P 1526, B21D 2602, B23K 1500

Patent

active

042952557

ABSTRACT:
A method of manufacturing a cooling jacket (10) is provided whereby a relatively thin-walled outer jacket formed as a cylinder (14') is press-fit over an inner casing (12) and the outer jacket (14') is then electron-beam welded to the inner casing (12) to set up a spiral weld (28) along the length of the cylinder (14'). The inner casing (12) has an inlet (18) and an outlet (20) hole located at opposite ends thereof which is aligned with the cylinder (14') during the pressing of the cylinder (14') onto the inner casing (12). The spiral-welded cylinder (14') is then pressurized through the inlet (18) with the outlet (20) being blocked to thereby expand the cylinder (14') between the spiral welds (28) into a series of semicircular passageways (16) for allowing cooling fluid flow.

REFERENCES:
patent: 1815938 (1931-07-01), Trogner
patent: 1990738 (1935-02-01), La Porte
patent: 2137044 (1938-11-01), Dawson
patent: 2772860 (1956-12-01), Nelson
patent: 3235947 (1966-02-01), Sohlemann
patent: 3549077 (1970-12-01), Huck

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