Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for producing laser-welded tubes and apparatus for producing the same










Image Number 13 for United States Patent #5968380.

In case of producing a welded tube from a metal band by using laser welding, edges of the metal band are preheated so that the temperature at the edges of the metal band before laser welding is not less than a predetermined temperature, the preheated abutting edges of the metal band are laser-welded to form a welded tube and welding beads generated on the outer and/or inner surfaces of the welded tube having been produced are eliminated by cutting. The predetermined temperature is determined depending on the thickness of the metal band and the time from the start of laser welding to the cutting of the welding beads. The edges of the metal band are preheated before welding to prevent the welding beads from being hardened by quick cooling at the welded section after laser welding.








 
 
  Recently Added Patents
Laser processing method and apparatus
Packet bundling at the PDCP layer
Treatment of diabetes with milk protein hydrolysate
Forklift
Communicating channel state information using predictive vector quantization
Identifying multi-component carrier cells
Self assembly of elements for displays
  Randomly Featured Patents
Dynamic molecular model
Parts cleaning and de-greasing machine
Navigation method and system having improved arrival detection function for large scale destination
Airport vehicle frame assembly used therefore
Lithium ion battery
Window wiping system
DC apparatus and vehicle using the same
Luminaire
Method for manufacturing a perpendicular magnetic write head having write pole
Container closure with stable open positions