Sudarea diferitelor materiale

Abstract

Dezvoltarea produselor industriale si, in special, a caroseriilor de automobil este orientata spre asigurarea structurilor portante coespunzatoare rezistentei egale si micsorarii greutatii. Aceste deziderate pot fi atinse prin utilizarea diferitelor materiale ce dispun de diferite niveluri de rezistenta specifica si care trebuie reunite in structuri integre prin sudare. Sudarea diferitelor materiale este soldata cu procese fizico-tehnice complexe, care limiteaza spectrul de solutii tehnologice. Dintre metodele de sudare cea mai importanta si de perspectiva este sudarea cu fascicol laser. Sunt analizate conditiile parametrice ale sudarii cu laser a unei serii de cupluri de materiale metalice.

The development of industrial products and, in particular, of car bodies is oriented towards ensuring load-bearing structures with equal resistance and weight reduction. These desired can be achieved by using different materials that have different levels of specific resistance and that must be joined in integral structures by welding. The welding of different materials involves complex physical-technical processes, which limit the spectrum of technological solutions. Among the welding methods, the most important and promising one is laser beam welding. The parametric conditions of the laser welding of a series of couples of metallic materials are analyzed.