Method for manufacturing a swaged piston assembly for an automotive air conditioning compressor
US5218763A · kind A · utility
21Cited by
12References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Jul 13, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2142
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forming a composite piston assembly for an automotive air conditioning compressor includes providing 1018 steel alloy, solid connecting rod with an aluminum alloy head. An axial receiving bore is provided in the piston head, which is also fabricated of solid bar stock, and includes a frusto-conically-shaped counterbore. The connecting rod includes a positioning collar that defines a tenon received in said bore. A cold swaged tip of the connecting rod flares outward so as to conform to and fill the counterbore and provide a strong fixed attachment joint between the connecting rod and piston head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.