Multiple choice

The two plastic parts having a complex weld joint geometry are welded by

  1. contact welding

  2. ultrasonic welding

  3. injection welding

  4. hot plate welding
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Related to contact welding, this technique is used to weld larger parts, or parts that have a complex weld joint geometry. The two parts to be welded are placed in the tooling attached to the two opposing platens of a press. A hot plate, with a shape that matches the weld joint geometry of the parts to be welded, is moved in position between the two parts. The two opposing platens move the parts into contact with the hot plate until the heat softens the interfaces to the melting point of the plastic.

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