A Metal Surface Alloying Method Using Inhomogeneous Heat Source to Promote Convection in Melt Pool
A metal surface and alloying technology, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of poor metal surface alloying effect, optimize alloy composition, reduce composition segregation, and ensure metal surface quality Effect
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[0025] The experiment was carried out by laser gas nitriding of pure titanium metal surface. During the test, the parameters are: the first laser beam is a fiber laser, and the laser generator is a laser generator of the model YLS4000 produced by IPG Company in Germany. Laser wavelength: 1064nm, focal plane beam diameter is 3mm, laser beam defocus is 0mm, and laser beam-to-mouth distance is 30mm. Laser beam moving speed: 30mm / s, power 1400W, maximum power density at center point: 5.94*10 4 W / cm 2 , the average power density is about: 1.98*10 4 W / cm 2 . The second laser beam is fiber laser, and the laser generator adopts the laser generator of model YLS4000 produced by IPG Company of Germany. Laser wavelength: 1064nm, focal plane beam diameter is 3mm, laser beam defocus is 0mm, and laser beam-to-mouth distance is 30mm. Laser beam moving speed: 30mm / s, power 3200W, maximum power density at the beam center: 1.36*10 5 W / cm 2 , the average power density is about: 4.53*10 4...
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