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
Electronic device
Vehicle-mounted camera stabilized passively by vibration isolators
Methods and systems for sending messages regarding an emergency that occurred at a facility
Method for releasing a locking in mobile terminal and mobile terminal using the same
Generating agricultural information products using remote sensing
Wireless communication method, wireless communication system, and mode switching method
Meter socket cabinet
  Randomly Featured Patents
Distributed protection system for power distribution systems
Servocontrolled axis manipulator with programmable spraying heads
Optical sheet and method of manufacturing the same
System for recovering data stored in failed memory unit
Claspin proteins and methods of use thereof
Content usage system, content usage method, recording and playback device, content delivery method, and content delivery program
Barrel nut fastener apparatus
Dynamic management of network flows
Floating connector
NAND-type nonvolatile memory device and related method of manufacture