Behavior of different materials during welding with the Nd:YAG laser
Abstract
Welding studies were performed on different materials using a pulsating Nd:YAG laser and varying the pulse duration, pulse length, and focal position. The experimental apparatus is described, and the characoteristics of the laser radiation are discussed. The welding itself is described, including the absorption behavior of metallic surfaces as a function of radiation intensity. Normal and anomalous absorption are distinguished, and the influence of thermal conductivity on the welding process is evaluated. Experimental results on the relationship between welding parameters and welding results are reported, emphasizing the welding energy at which deep welding occurs and the width of the pulse energy region that leads to deep welding. The processes occurring in steam capillaries during deep welding are numerically evaluated, and the suitability of various materials for laser welding is discussed.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- June 1984
- Bibcode:
- 1984PhDT........31C
- Keywords:
-
- Laser Welding;
- Metal Surfaces;
- Neodymium Lasers;
- Weld Tests;
- Yag Lasers;
- Aluminum;
- Copper;
- Molybdenum;
- Nickel;
- Noble Metals;
- Pulse Duration;
- Radiation Absorption;
- Thermal Conductivity;
- Lasers and Masers