Comparative study on aluminum and steel welding with cw and repetitively Q-switched Nd:YAG lasers

Book · Tue Dec 31 04:00:00 EST 1996

OSTI ID:522444

Richter, K; Bostanjoglo, G ^[1]; Dommaschk, R; Mayrhofer, R; Paethe, D ^[2]; Weber, H ^[3]

---

1. Laser- und Medizin-Technologie Berlin gGmbH, Berlin (Germany). Geschaeftsbereich Lasertechnik
2. INPRO Innovationsgesellschaft fuer Fortgeschriuttene Produktionssysteme in der Fahrzeugindustrie, Berlin (Germany)
3. Technischen Univ., Berlin (Germany). Optisches Institut

Q-switched cw pumped Nd:YAG lasers provide high output power in combination with high peak power and high repetition frequencies. Welding highly reflecting materials, this operation mode should improve the coupling conditions of the laser beam. The experiments show a significant influence of the welding depth and the seam dimension. Furthermore, the beam quality is an important factor for the geometry of the welding seam. However at the achievable low spot diameters, the quality of the seam surface and the existence of pores reduce the advantage of this technique.

• OSTI ID: 522444
• Report Number(s): CONF-9606246--; ISBN 0-8194-2175-8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
LASER WELDING
NEODYMIUM LASERS
Q-SWITCHING
STEELS