Variable high pressure vibration welding process
US6241836A · kind A · utility
6Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1994 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Oct 17, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/747
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The practice of joining two thermoplastic resin bodies with widely disparate melting temperatures is enhanced by providing a shallow, roughened surface on at least the higher melting point body. When the parts are clamped together for frictional engagement, the roughened surface increases the local pressure, accelerates the formation of a molten film between the bodies and provides a strengthening mechanical interlock in the welded joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.