| 摘要 |
A method of manufacturing a composite plain bearing is shown comprising the steps of forming, through pressing and sintering of powdered-metal, a porous base member defining a bearing surface having a height greater than four times its wall thickness, disposing the porous member in intimate engagement with a backing member, and infiltrating an anti-galling metal alloy into the pores to substantially fill the pores and concomitantly braze the members into an integral unit, subsequent steps of finishing the integral unit prior to assembly as a bearing surface in a rock bit, include machining the I.D. and O.D. thereof, and heat treating to harden the base member.
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