• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site

Article

Strength improvement of welded joints of aluminum alloys by laser processing

Russian Metallurgy (Metally). 1993. No. 2. P. 165-167.
Bondarenko G.G., Egorov O. V.

Investigation is made into the influence of preliminary treatment of aluminium alloys surface for diffusion welding with the aid of laser impulses. It is proved that preliminary laser treatment of the aluminium alloys surface of 1201 and 1151 types for diffusion welding increases welds strength by 30% as compared to the widely used treatment inflow discharge plasma. Besides, laser treatment substantially reduces working hours of the process. Metallographic analysis of the structure of specimens treated in the regime of ″ laser irradiation with subsequent diffusion welding ″ has proved that the weld lacks the narrow sharp boundary zone which is a usual place of initiation and propagation of cracks.


Reaxys Database Information |