JOINT DESIGN FOR LASER WELDING ZINC COATED STEEL

Title:

JOINT DESIGN FOR LASER WELDING ZINC COATED STEEL

Document Type and Number:

Japanese Patent JP2004261870

Kind Code:

A

Abstract:

To provide a joint design for laser welding zinc coated steel sheet.

When at least two metal sheets 10 and 20 protected by zinc coatings 12 and 22 of low vaporizing temperature are welded, the metal sheets are placed in an overlapping relationship and a head 30 of a welding machine is passed over the sheets. The head 30 of the welding machine is configured such that a laser 34 is positioned in front of a GMAW welder 36 or a MIG brazing device. The laser 34 cuts a channel 42 into the metal sheets in order to allow the protective zinc coatings to vaporize and escape. The GMAW welder or the MIG brazing device then follows the laser and deposits a material that fills the channel to weld the two sheets together.

More Like This:

WO/1998/058758	ULTRA-HIGH STRENGTH CRYOGENIC WELDMENTS
JP2011194462	ARC START CONTROL METHOD OF CONSUMABLE ELECTRODE ARC WELDING
JP2602454	[Title of the Invention] An automatic welding method for a narrow portion and a torch for automatic welding.

Inventors:

MUSSELMAN GARY H

Application Number:

JP2004057916A

Publication Date:

September 24, 2004

Filing Date:

March 02, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DANA CORP

International Classes:

B23K9/173; B23K9/23; B23K26/00; B23K26/14; B23K26/20; B23K26/24; B23K26/32; B23K9/16; B23K28/02; B23K103/04; B23K103/16; (IPC1-7): B23K26/00; B23K9/16; B23K9/173; B23K9/23

Attorney, Agent or Firm:

Yuzo Sanada
Nobuhiko Nakajima
Ohara Shizuo

Previous Patent: LADLE, AND METHOD FOR USING LADLE

Next Patent: JOINING DESIGN FOR LASER WELDING GALVANIZED STEEL SHEET