Ultrasonic welding of electronic parts and devices using a long and thin complex vibration welding tip

J. Tsujino, E. Sugimoto
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引用次数: 6

Abstract

Ultrasonic complex vibration welding was applied for deep and narrow area of electronic parts positioned at long distance from the vibration system. Usually, electric resistance welding was used to weld such part, but there are possible defect caused by sparked metal particles radiated from welding position. To overcome the defect and make possible to join such deep area, 20 kHz and 27 kHz ultrasonic complex vibration systems using 2.0- and 3.0-mm-diameter, 70- to 100-mm-long hard metal and tungsten welding tips were developed. Using the ultrasonic complex vibration systems, various metal specimens including copper, nickel clad copper terminal and steel or nickel coated steel cases were successfully welded with weld strength almost equal to these material strength.
电子零件和器件的超声波焊接采用又长又薄的复合振动焊头
将超声复合振动焊接应用于距离振动系统较远的电子零件的深窄区域。通常采用电阻焊进行焊接,但焊接位置辐射出的金属颗粒有可能产生缺陷。为了克服这一缺陷,使这种深度区域的连接成为可能,开发了20 kHz和27 kHz超声复合振动系统,采用2.0和3.0 mm直径,70至100 mm长的硬质金属和钨焊接头。利用超声复合振动系统,成功地焊接了各种金属试样,包括铜、镍包铜端子和钢或镀镍钢外壳,焊缝强度几乎等于这些材料的强度。
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