Fundamental experiments of Nd:YAG laser beam welding for assembling mechanical parts in millimeter - machine systems

Conference · Mon Dec 30 23:00:00 EST 1996

OSTI ID:539342

Yoshioka, Shunro; Miyazaki, Toshiyuki; Shirai, Yasuyuki ^[1]

---

1. Chiba Institute of Technology (Japan); and others

Fundamental experiments of laser beam welding of fine wires are described for applying the welding to fine mechanical parts. Pulsed Nd:YAG laser beam is used for welding of SUS 304 wire under three types of pulse shapes; the power variation with time are rectangular (A), of the decrease (B) and of the increase (C) at the tail of the pulse. The effects of the pulse shapes on the weldability are discussed. In cases of the shapes A and B, a crater is formed; thus, these are not adopted for the welding. In case of the shape C, a crater is not formed and a good weld zone is obtained. Welding of a SUS 304 wire of 100 {mu}m in diameter is carried out. The weld strength is 30-35 % of the material; this is the same as that of the annealed material. Furthermore, relations between the deviation of the welding position and strength are also discussed.

• OSTI ID: 539342
• Report Number(s): CONF-961073--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
LASER WELDING
MECHANICAL STRUCTURES
MINIATURIZATION
NEODYMIUM LASERS
PARAMETRIC ANALYSIS
WIRES