Method for enhancing the wear performance and life characteristics of a brake drum
US5193375A · kind A · utility
20Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1991 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Nov 27, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for enhancing the frictional wear properties, performance and life of a graphitic cast iron brake drum. The surfaces of the drum which are frictionally engaged by brake shoes, are cold worked by subjecting them to shot peening at an intensity level sufficient to induce surface and near surface residual stress, to thereby increase the resistance of said graphitic cast iron to scuffing and heat checking under conditions of dry sliding contact and frictional loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.