scholarly journals In-Process Monitoring and Adaptive Control in Laser Micro-Spot Lap Welding of Aluminum Alloy -Adaptive Control by Heat Radiation for Partially-Penetrated Welding-

2004 ◽  
Vol 32 (5) ◽  
pp. 357-363 ◽  
Author(s):  
Yousuke KAWAHITO ◽  
Seiji KATAYAMA
Keyword(s):  
Aluminum Alloy ◽  
Adaptive Control ◽  
Process Monitoring ◽  
Heat Radiation ◽  
Lap Welding

Interfacial Reaction during Dissimilar Friction Stir Lap Welding of Aluminum Alloy to Stainless Steel

2014 ◽  
Vol 794-796 ◽  
pp. 389-394
Author(s):  
Tomo Ogura ◽  
Taichi Nishida ◽  
Makoto Takahashi ◽  
Hidehito Nishida ◽  
Mitsuo Fujimoto ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Intermetallic Compounds ◽  
Lap Joint ◽  
Friction Stir Lap Welding ◽  
Friction Stir ◽  
Transmission Electron ◽  
Lap Welding ◽  
Mixed Layers ◽  
Joining Process

A friction stir welded A3003 aluminum alloy /SUS304 stainless steel dissimilar lap joint was successfully produced. A sound joint that fractured at the base metal was obtained in the center region of the joint through the reaction layer of aluminum-rich intermetallic compounds with nanoorder thickness. The microstructural changes at the interface of the joint was examined by studying the hole left by the extracted welding tool produced at the end of the friction stir welding (FSW) bead using transmission electron microscopy (TEM). Mixed layers consisted of ultra-fined intermetallic compounds and stainless steel were observed. The stirred aluminum alloy flows onto the mixed layer after the tool transit and the joining was achieved. Based on the TEM observations, the joining process of the lap joint was also discussed.

The system of laser sintering process monitoring and adaptive control

2007 ◽  
Author(s):  
Yu. Chivel ◽  
A. Inyutin ◽  
M. Vatkin ◽  
A. Uzunbadgakov ◽  
D. Zatiagin
Keyword(s):  
Adaptive Control ◽  
Process Monitoring ◽  
Laser Sintering ◽  
Sintering Process
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