Manufacture of light weight pistons

Details Manufacture of light weight pistons Manufacture of light weight pistons

1980-09-15

1982-12-28

Crane, Daniel C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

164108, 164112, 164114, B23P 1510, B22D 1300

Patent

active

043653995

ABSTRACT:
A method of manufacture of novel light-weight pistons of aluminum forgings with an integral iron insert ring by fusion welding is described. The aluminum piston forging is provided with a configuration adapted to receive the iron insert ring which may be coated to provide an inter-metallic joining alloy. The configured piston forging is placed in a mold, the ring is positioned in the configuration. The mold is rotated and molten alloy is introduced at an angle to deoxidize the forging and the ring, sweep the oxides to non-critical areas of the mold and to join the forging to the ring upon cooling to form a fusion weld.

REFERENCES:
patent: 1396341 (1921-11-01), Rautenbach
patent: 1717916 (1929-06-01), Campbell
patent: 1727119 (1929-09-01), Troeger
patent: 2166634 (1939-07-01), Lesage
patent: 2620530 (1952-12-01), Sulprizio
patent: 2778162 (1957-01-01), Giffen
patent: 3012831 (1961-12-01), Cheney et al.
patent: 3276082 (1966-10-01), Thomas
patent: 3305918 (1967-02-01), Christen et al.
patent: 3371703 (1968-03-01), De Wilde
patent: 3533329 (1970-10-01), Galli

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