Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1974-04-04
1976-02-17
Lovell, C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
B32B 1500
Patent
active
039389626
ABSTRACT:
Metallic parts having a hard wear-resistant surface and the high impact resistance associated with softer materials are formed by coating a plurality of ductile, relatively soft metallic segments with a relatively hard wear-resistant material, stacking the segments so that portions of each of their coated surfaces are exposed to form a composite coated surface, and mechanically locking the segments together to form a unitary member. The members formed by this technique exhibit the surface characteristics associated with the hardened coating such as improved wear, impact and abrasion resistance, and exhibit the bulk physical properties of the base material such as strength and ductility. Moreover, the surface treatment has a depth which would be unobtainable if the part were formed of a single section treated with the surface coating; the coating is not only formed on the exterior surface of the composite part, but extends toward the interior of the part for substantial depths.
REFERENCES:
patent: 2779699 (1957-01-01), Langworthy
patent: 3539192 (1970-11-01), Prasse
patent: 3606359 (1971-09-01), McCormick
patent: 3684497 (1972-08-01), Wendler et al.
Baum Charles S.
Feilbach, Jr. Weston H.
Crutchfield O. F.
Feilbach Weston H.
Lovell C.
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