Defects formation mechanisms in laser welding and their suppression methods

摘要: The significant problems of laser welding, particularly by a pulsed laser, are formation various welding defects such as porosity, cracking and undercutting. In order to reduce these defects, the authors have developed special with pulse shaping function. paper describes effects on reduction porosity weld spot difficult materials Al-alloys stainless steels. By selection optimum shape can be drastically reduced sound is possible obtain.The obtain.