2024-03-29T06:28:19Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00004180
2022-12-15T03:37:12Z
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アルコール付着によるAl-Mg合金の超音波接合強さの改善 : Al-Mg合金の超音波接合(第2報)
アルコール付着によるAl-Mg合金の超音波接合強さの改善 : Al-Mg合金の超音波接合(第2報)
Improvement of Ultrasonic Weld Strength for Al-Mg Alloy by Adhesion of Alcohol : Ultrasonic Welding of Al-Mg Alloy(2nd Report)
平石, 誠
渡辺, 健彦
Ultrasonic welding
Aluminum alloy
Magnesium
Weld strength
Alcohol
Welding temperature
In order to improve the ultrasonic weld strength of Aluminum (Al)-Magnesium (Mg) alloy, the effects of pre-heating the specimen and the putting a drop of alcohol on the welding surface on the weldability were examined. Al-4.1 mass% Mg alloy (A5086) with 1.2mm thickness was lap-welded. The following results were obtained in this study. Pre-heating the specimen increases the strength of the weld. The adhesion of the alcohol on the welding surface causes the specimen temperature during welding to increase by 130K higher than that without the alcoholadhesion, because the large relative motion between the specimens was induced at the incipient stage of the welding process due to the alcohol adhesion. The amplified relative motion and softening of the specimen because of the temperature rise broken down the Mg-segregated region preventing the faying surface from welding and resulted in increasing the weld strength about twice as high as that without alcohol. Furthermore, the adhesion of the alcohol causes the welding time necessary to achieve the sound welding to shorten below I second.
溶接学会
2003
jpn
journal article
http://hdl.handle.net/10191/6296
https://niigata-u.repo.nii.ac.jp/records/4180
AN1005067X
02884771
溶接学会論文集
溶接学会論文集
21
2
295
301
https://niigata-u.repo.nii.ac.jp/record/4180/files/06_0014.pdf
application/pdf
1.6 MB
2019-07-30