Monthly Archives: November 2009

Polymer materials consist of long-chain molecules. These molecules are many hundreds if not thousands of times longer than their width. They can be visualized as human hairs, and are usually illustrated by lines. Thermoplatic materials come in two general groups: … Continued

In order to weld a thermoplastic part using ultrasonics, four factors must come together. First, the material must have a sufficient loss modulus. This is a very fancy way of saying that material must be able to be heated by … Continued