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The Ultimate Ultrasonic Welding Quiz
by Staff
Ultrasonic welding is used widely in many industries -- including shoe manufacturing and auto making. How well do you know how this method uses sound to do what high temperatures normally do. Test your knowledge now.

In what decade was ultrasonic welding first introduced?

  • 1930s
  • 1940s
  • 1950s
  • 1960s

What materials are most commonly bonded by ultrasonic welding?

  • metals
  • plastics
  • textiles
  • wood

What force creates the heat in ultrasonic welding?

  • gravity
  • friction
  • electricity
  • magnetism

Which part of an ultrasonic welder delivers the sound waves?

  • converter
  • horn
  • booster
  • power supply

How does ultrasonic welding fuse plastic materials together?

  • Ultrasonic welding does not yet work with plastics.
  • The heat generated by friction burns the plastics together.
  • You must have a "glue" that gets melted to each plastic by the frictional heat.
  • None of the above

How does New Balance use ultrasonic welding?

  • It uses ultrasonic welding to bond materials in shoes soles.
  • It uses ultrasonic welding to bond and emboss materials.
  • It uses ultrasonic welding to color the shoe soles.
  • The company doesn't use ultrasonic welding.

Is ultrasonic welding a high- or low-temperature process?

  • Ultrasonic welding is a high temperature process.
  • Ultrasonic welding is a low temperature process.
  • Ultrasonic welding uses both low and high temperatures.

What advantages does ultrasonic welding have over traditional welding?

  • It's fast.
  • It's cheap.
  • It's safe.
  • All of the above.

What does the booster of an ultrasonic welding apparatus do?

  • It delivers the sound waves to the materials to be welded.
  • It amplifies the sound waves.
  • It creates the sound waves.
  • It holds the materials together.

The sonotrode is another name for which part of an ultrasonic welding maching?

  • converter
  • horn
  • power supply
  • booster

What is the frequency range of sound waves used in ultrasonic welding?

  • 20 - 40 kHz
  • 5 - 10 kHz
  • 50 - 60 Hz
  • 100 - 1000 Hz

How does ultrasonic welding work with metals?

  • The heat generated by friction burns away oxides and contaminating materials between the two metals.
  • The heat generated by friction burns the metals together.
  • You must have a "glue" that gets melted to each metal by the frictional heat.
  • All of the above.

What auto maker has experimented with using ultrasonic welding to make aluminum chassis?

  • Boeing
  • Ford Motor Company
  • Caterpillar
  • Alcoa

To make electrical connection, which technique is faster?

  • Soldering
  • Ultrasonic welding
  • Conventional welding

Which technique would you use to bond two steel girders in constructing a building?

  • ultrasonic welding
  • conventional welding
  • soldering
  • gluing

What is the most likely occupational hazard of ultrasonic welding?

  • burns
  • blindness
  • damaged hearing
  • cuts

In an ultrasonic welding machine, what does the transducer do?

  • It provides the energy for the welding.
  • It changes electrical pulses to sound waves.
  • It amplifies the sound waves.
  • It dielivers the sound waves to the material to be welded.

What factors affect the ultrasonic welding process?

  • Frequency
  • Pressure
  • Time
  • All of the above

What metals are most commonly welded ultrasonically?

  • steel and tin
  • gold and silver
  • titanium and tungsten
  • copper and aluminum

Besides automobiles, what things are made using ultrasonic welding?

  • blister packs
  • catheters
  • packaging films
  • all of the above