Nd:YAG lasers tailored beam delivery improves productivity & weld penetration

Abstract

Precision welding of modern electronics, medical, automotive and aerospace products is becoming increasingly more difficult due to smaller part geometry, tighter tolerances and the demand for increased productivity and process control. Design engineers are also seeking deeper welds for increased strength. In many cases, TIG and resistance welding techniques will not meet these new requirements. TIG welding often generates too much heat which damages thin, delicate parts. Resistance welding may be too slow and is difficult to automate due to high electrode maintenance and wear. Nd:YAG and carbon dioxide lasers employing conventional beam delivery systems have met some of these welding requirements but they do not permit the range of beam delivery options required for many precision welding applications.Precision welding of modern electronics, medical, automotive and aerospace products is becoming increasingly more difficult due to smaller part geometry, tighter tolerances and the demand for increased productivity and process control. Design engineers are also seeking deeper welds for increased strength. In many cases, TIG and resistance welding techniques will not meet these new requirements. TIG welding often generates too much heat which damages thin, delicate parts. Resistance welding may be too slow and is difficult to automate due to high electrode maintenance and wear. Nd:YAG and carbon dioxide lasers employing conventional beam delivery systems have met some of these welding requirements but they do not permit the range of beam delivery options required for many precision welding applications.