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What is Amorphous plastic?

A thermoplastic which has a random molecular structure. Examples are ABS, Polycarbonate, and Polystyrene.

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What is Semi-crystalline plastic?

Semi-crystalline plastics require a high heat and high energy/amplitude. Semi-crystalline materials attenuate the vibrations more and are more "spongey".

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What are the material factors that affect ultrasonic welding?

There are many factors that can affect the weldability of plastic materials. Lubricants, modifiers, resin grade and age can all affect weldability.

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What is hygroscopicity in plastic welding?

Hygroscopicity is the tendency of some plastics to absorb moisture from the air. When a polymer absorbs moisture, it can affect weldability.

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What does regrind mean in plastic welding?

Regrind is a term used that refers to plastic material that has been recycled or reprocessed and added to the original resin.

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Welding Thermoplastics vs. Thermoset Plastics

The decision to use either Thermoset Plastics or Thermoplastics is not as simple as it seems when it comes to ultrasonic welding of plastic parts.

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Welding Amorphous vs. Semi-Crystalline Plastics

Amorphous vs. Semi-crystalline are two types of plastics that should bear full scrutiny and research early on in the product design phase, which will avoid costly pitfalls once you get to the manufacturing process.

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