A METHOD FOR RESIDUAL-STRESS MEASUREMENT IN WELDED SEAMS

The paper discusses a method for residual stress measurement in the di rection transverse to the welded seam. The residual stresses are measu red by means of electrochemical removal and the simultaneous measureme nt of strain using a strain gauge, The method is simple and enables me asurement over the whole cross-section of the welded specimen: this ab ility is the most significant feature of this method. The method enabl es optimisation of the welding parameters. It is possible to analyse t he influence of each individual pass of the welding electrode on the r esidual stress distribution, the latter being very important in dynami cally loaded welded parts. The present method for residual stress meas urement is not only useful for the welding of parts, but is helpful al so in a variety of other applications.