Abstract
Surface crack of steel components was repaired with twin laser beams. The experimental results showed that the surface crack with the wideness of 0.2~0.3 mm could be repaired under the laser power 3KW. The repaired deepness is about 6.5mm.There was an obvious joined band between filled region and substrate of component. The microstructures of repaired region were adnate cellular crystal, dendrite crystal.
© 2001 IEEE
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