Composite heavy-duty machine element and method of making the same

Abstract

Abstract A composite heavy-duty machine element, such as a face gear (FIG. 7), has its working or load bearing portion composed on sintered powdered high-performance alloy while its supporting portion not subjected to concentrated or intense heavy loads is made of a base metal such as sintered powdered iron. In FIGS. 1 through 8 the powders of the two portions are inserted separately and successively in the die cavity of a briquetting process and simultaneously compacted to form a composite briquette which is then sintered to bond the separate portions together even though they are of different materials with different physical characteristics. The face gear as briquetted and sintered is then subjected to a further deforming operation to further incline its teeth. The resulting composite sintered powdered metal face gear is of lower material cost than such an element formed of highperformance alloy in its entirety, and may then be used as it is of satisfactory density for its intended use, or it may be further densified by means of an additional compressing operation with the article cold, warm or by a hot forging operation, or with subsequent sintering if deemed necessary depending upon its intended use.

Inventors

• 👤 W Dunn
• 👤 M Sarnes

Bibliographic Details