Patent ID: 6114053
Filing Date: 2000-09-05
Classification: B32B,Y10T

Abstract:
An overlay structure by a laser beam, comprising:a base metal; andan overlay layer formed such that a laser beam relatively moves and irradiates with respect to the base metal and that another metal material other than the base material is simultaneously put on the base metal surface by melting the another metal material,wherein the overlay layer is formed by overlapping a terminal end of the overlay layer over a beginning end of the overlay layer,wherein, when the overlay layer is being formed, a supply amount of the other metal material in the beginning end portion is smaller than a supply amount of the another metal material in a steady portion, an inclined angle .theta. is formed with respect to the base material surface of the overlay layer surface in the beginning end portion in a range of 8.degree.<.theta.<27.degree..