Hoesch Aktiengesellschaft

Hoesch Werke Aktiengesellschaft

Manfred Gerber

Heinz Gross

Friedhelm Retzlaff

Rolf Krebs

Hans-Jurgen Wahl

Werner Roll

Karl-Heinz Becker

Friedhelm Gunther

Friedhelm Gunter

Otto Welsing

Method and apparatus for the continuous industrial production of tubular bodies in which coated or uncoated steel strip is formed to a slit tube and the opposite strip edges are longitudinally seam welded at high speed by a laser beam of high energy density under protective gas with or without supply of additive material, and after a preparation adapted to the narrow melt zone and bringing together of the strip edges a fusion welding with subsequent controlled cooling and upsetting is carried out which results in a seam geometry suitable for any further processing.

Method and apparatus for continuous production of tubular bodies by

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.

Use of the laser welding process for and method of manufacturing of

An apparatus for chip removal and chip receiving when trimming metal bands, which includes an automatically driven and self-controlling winding-up device for tautly winding-up the seam chip cut off from a metal band being trimmed. The apparatus furthermore includes a chip guiding device reciprocable alongside the chip winding-up region for guiding engagement with the chip being fed to the winding-up device.

Apparatus for chip removal and chip receiving when seaming metal bands

Growing community of inventors

Hamm, Germany

Manfred Gerber