Patent ID: 6329630
Filing Date: 2001-12-11
Classification: B08B,B23K

Abstract:
A process of cladding by welding, comprising:preparing a workpiece having a cladding-scheduled portion including an exposed normal region, said exposed normal region having a normal surface possibly including a foreign substance portion forming a cladding defect;irradiating said exposed normal region of said cladding-scheduled portion with a high-density energy beam capable of substantially eliminating or decreasing said foreign substance portion without substantially melting said exposed normal region; andcovering said exposed normal region with a clad layer;wherein said irradiating step uses at least one of a first detecting means and a second detecting means, said first detecting means for detecting light generated in eliminating or decreasing said foreign substance portion, and said second detecting means for detecting sounds generated in eliminating or decreasing said foreign substance portion.