Welded article and method of making same
US4270496A · kind A · utility
10Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1978 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Dec 26, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2275/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cam follower having a two-piece composite laser welded configuration is disclosed and comprises a solid and alternatively thin wall tubular base (16) portion formed of mild steel and a thin-disc reaction portion (18) having a hardened, wear resistant outer surface portion (50). The reaction portion is joined to the base portion by laser welding which results in a weld zone (54) comprised of a fusion zone (56) bounded on either side thereof by heat affected zones (58) having relatively narrow transverse thicknesses. A method of laser welding the hardened reaction portion to the mild steel base portion is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.