Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1986-09-24
1988-04-19
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29458, 295272, 295277, 72700, B21D 5310
Patent
active
047380110
ABSTRACT:
A method of producing a composite sliding material having a sliding portion with a sliding surface is disclosed. A base material billet for the sliding portion is prepared and then at least half of the outer peripheral surface of the base material billet is covered by a protecting material while leaving the surface of the billet, which is to become the sliding surface of the finished composite sliding material, as an exposed portion which is not covered by the protecting member. The base material billet and the protecting material are then extruded simultaneously. The composite sliding material may be made thinner by means of rolling as occasion demands. It is also possible to subject the sliding material to heat treatment before and/or after extrusion, if necessary. A composite sliding material may be produced by pressure-bonding a hard support material such as steel to the protecting material which is used in this case as an adhesive layer.
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patent: 4121928 (1978-10-01), Mori
Cuda Irene
Daido Metal Company Ltd.
Goldberg Howard N.
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