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)
スポンサーリンク
概要
- 論文の詳細を見る
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.
- 溶接学会の論文
- 2003-00-00
溶接学会 | 論文
- 研究者・技術者に必須の「効果的技術英文の組み立て方」 : テクニカル・ライティング練習張
- 補修溶接の採否の決定と施工上のポイント-2-圧力容器
- これからの溶接・接合技術の展開と提言
- 破壊靱性と継手破壊強度
- ものづくりを革新するレーザ溶接