WELDING OF STAINLESS STEEL USED FOR THE MANUFACTURE OF HYDRAULIC VALVES

  • BESNEA DANIEL
    POLITEHNICA UNIVERSITY OF BUCHAREST, DEPARTMENT OF MECHANICAL ENGINEERING AND MECHATRONICS, CHAIR OF PRECISION ENGINEERING AND MECHATRONICS
  • DONTU OCTAVIAN
    POLITEHNICA UNIVERSITY OF BUCHAREST, DEPARTMENT OF MECHANICAL ENGINEERING AND MECHATRONICS, CHAIR OF PRECISION ENGINEERING AND MECHATRONICS
  • ALEXANDRESCU NICOLAE
    POLITEHNICA UNIVERSITY OF BUCHAREST, DEPARTMENT OF MECHANICAL ENGINEERING AND MECHATRONICS, CHAIR OF PRECISION ENGINEERING AND MECHATRONICS

Abstract

The paper presents the results of the experimental research regarding the microwelding of stainless steel by pulsed Nd :YAG laser. The analytical and experimental investigation on laser weld ability of a stainless steel allowed to draw the following conclusions. The micro-welds produced by the optimized Nd: YAG laser parameters featured a narrow and regular weld metal zone devoid of any solidification and shrinkage defects.

Cuvinte cheie

laser welding; stainless steel; hydraulic valves.