Accession Number:

AD0722289

Title:

Smooth Rolling of Parts by Rollers as a Means of Increasing the Wear Resistance,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1971-01-18

Pagination or Media Count:

17.0

Abstract:

A survey of works is provided, concerning the effect of cold plastic deformation of machine parts to increase wear resistance under various conditions of friction. In the majority of the published works, the principal attention is devoted to the wear of the rolled surfaces themselves. Meanwhile the service life of a friction couple is determined by the total wear of the two coupled parts. An investigation is cited of a friction couple consisting of a steel shaft and a bronze insert, in application to the operating conditions of components of conical crushers. The tests were carried out on a friction machine. The specimens were made of steel 40 and were burnished with various degrees of force. The insert was made of the bronze BR.OTsS 8-21. Comparative tests have shown that the wearing in of burnished specimens takes place several times more rapidly than that of ground ones, and their wear in that period is 3-3.5 times less. The wear of bronze inserts working with burnished shafts is considerably less than the wear of inserts operating with ground shafts. As a result of burnishing of the shafts, the wear-in time of friction couples may be reduced by a factor of more than 20.

Subject Categories:

  • Manufacturing and Industrial Engineering and Control of Production Systems
  • Machinery and Tools
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE