Patent · US Expired

Use of the laser welding process for and method of manufacturing of welded construction parts for exhaust installations

US4656332A · kind A · utility

8Cited by

1References

6Claims

0Family size

Assignee

Hoescht Aktiengesellschaft · DE

Inventors

Heinz Gross · Lutherstadt Eisleben, DE
Manfred Gerber · Saskatoon, CA
Rolf Krebs · Hamm, DE
Friedhelm Retzlaff · Kamen, DE

Key dates

Filing date	Dec 2, 1985
Grant date	Apr 7, 1987
Priority date	—
Expiry date	Dec 2, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/50
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A laser welding process is used according to the invention for the manufacture of a straight seam weld for tubular construction parts of ferritic, Ti-stabilized CR steel x5CrTi12 for exhaust systems in automobiles. This has the advantage that after welding the construction parts can be expanded or compressed by more than 40% of their original dimensions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.