METHOD FOR EVALUATING HARDNESS OF BUILD-UP PART AND PROPRIETY DETERMINING METHOD FOR REINFORCING BEAD PART

摘要

PROBLEM TO BE SOLVED: To provide a method for simply evaluating hardness of a build-up part formed on a metal plate by a build-up welding in a non-destructive manner. SOLUTION: The propriety determining method for a reinforcing bead part includes: a dimension obtaining step of obtaining dimensions of a plurality of reinforcing bead parts formed on a vehicle body constituting part of the metal plate as a component by the build-up welding; a numerical actual measuring step of evaluating the hardness of the plurality of the reinforcing bead parts by actual measurement; and a correlation obtaining step of obtaining correlation between the dimensions of the reinforcing bead parts obtained by the dimension obtaining step and the actual measured values of the hardness of the reinforcing bead parts obtained by the numerical actual measuring step. The hardness of the reinforcing bead parts is evaluated based on the correlation obtained by the correlation obtaining step. COPYRIGHT: (C)2011,JPO&INPIT