By Rajiv S. Mishra, Murray W. Mahoney, Yutaka Sato, Yuri Hovanski
This assortment specializes in all facets of technological know-how and know-how relating to friction stir welding and processing.
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Additional resources for Friction Stir Welding and Processing VIII
2006). 8. William T. Becker and Roch J. , ASM Handbook, vol. 11 (Materials Park, OH: ASM International, 2002). 19 Friction Stir Welding and Processing VIII Edited by: Rajiv S. Mishra, Murray W. Mahoney, Yutaka Sato, and Yuri Hovanski TMS (The Minerals, Metals & Materials Society), 2015 USE OF HIGH-POWER DIODE LASER ARRAYS FOR PRE- AND POSTWELD HEATING DURING FRICTION STIR WELDING OF STEELS B. Baker1, T. McNelley2, M. Matthews3, M. Rotter3, A. Rubenchik3, and S. Wu3 1 United States Naval Academy, Annapolis, MD 2 Naval Postgraduate School, Monterey, CA 3 Lawrence Livermore National Laboratory, Livermore, CA Keywords: Friction Stir Welding, High-Power Diode Laser Array, Laser Assisted Friction Stir Welding, Hybrid Friction Stir Welding Abstract In this research a high-power diode laser array was used to preheat HY-80 steel to determine the efficacy of using a diode laser array for preheating prior to friction stir welding in order to reduce frictional forces thereby reducing tool wear and increasing welding speeds.
Using instrumented plates the temperature profile using diode heating alone was determined in order to validate theoretical models. A high-power diode laser is proposed as a more cost effective and efficient means of preheating compared to other hybrid friction stir welding techniques. Parameters of the diode array were easily controllable and resulted in a preheated area that very closely matches the typical stir zone observed in friction stir welds. A proposed diode laser assisted friction stir welding system is presented, and it is hypothesized that the addition of diode laser preheating will improve tool life and/or increase welding speeds on steels.
Lusquinos, J. C. Conde, S. Bonss, A. Riveiro, F. Quintero, R. , "Theoretical and experimental analysis of high power diode laser (HPDL) hardening of AISI 1045 steel," Applied Surface Science, vol. 254, pp. 948-954, Dec 2007. S. K. Panda, V. H. B. Hernandez, M. L. Kuntz, and Y. Zhou, "Formability Analysis of Diode-Laser-Welded Tailored Blanks of Advanced High-Strength Steel Sheets," Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science, vol. 40A, pp. 1955-1967, Aug 2009.
Friction Stir Welding and Processing VIII by Rajiv S. Mishra, Murray W. Mahoney, Yutaka Sato, Yuri Hovanski