Welding of aluminum alloy with a high-power direct diode laser

Nobuyuki Abe; Atsuhito Morikawa; Masahiro Tsukamoto; Koichi Maeda; Keizo Namba

doi:10.1117/12.478376

19 June 2003 Welding of aluminum alloy with high power direct diode laser

Nobuyuki Abe, Atsuhito Morikawa, Masahiro Tsukamoto, Koichi Maeda, Keizo Namba

Proceedings Volume 4973, High-Power Diode Laser Technology and Applications; (2003) https://doi.org/10.1117/12.478376
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

Characterized by high conversion efficiency, small size, light weight and a long lifetime, high power diode lasers are currently being developed for application to various types of metal fabrication, such as welding. In this report, a 4kW high power direct diode laser was used to weld aluminum alloys, which are the focus of increasing attention from the automobile industry because of their light weight, high formability and easy recyclability. The applicability of a direct diode laser to aluminum alloy bead-on plate, butt and lap-fillet welding was studied under various welding conditions. A sound bead without cracks was successfully obtained when 1 mm thick aluminum alloy was welded by bead-on welding at a speed of 12m/min. Moreover, the bead cross section was heat conduction welding type rather than the keyhole welding type of conventional laser welding. Investigation of the welding phenomena with a high-speed video camera showed no spattering or laser plasma, so there was no problem with laser plasma damaging the focusing lens despite the diode laser's short focusing distance.

Citation Download Citation

Nobuyuki Abe, Atsuhito Morikawa, Masahiro Tsukamoto, Koichi Maeda, and Keizo Namba "Welding of aluminum alloy with high power direct diode laser", Proc. SPIE 4973, High-Power Diode Laser Technology and Applications, (19 June 2003); https://doi.org/10.1117/12.478376

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available