ULTRASONIC WELDING AND ITS PROCESS

Ultrasonic welding will join similar or dissimilar metals by the Introduction of high-frequency vibratory energy (frequency being 20000 to 60000 Hz) into overlapping metals into the area to be joined. No flux or filler metals are used, no electrical current passes through the weld metal, and usually no heat is applied.

The parts to be joined are clamped together between a welding tip and a supporting member under low-static pressure. High-Frequency vibratory energy is then transmitted into the weld area for a brief interval. This process produces a sound bond without an arc or melting weld metal and in the absence of filler metal or fluxes.

The ultrasonic welding process can be utilized in spot welding, continuous seam welding, etc. The maximum thickness by these processes ultrasonically may vary from 0.38 to 2.5mm depending upon the metal.

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Mechinopedia For Mechanical Engineers

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