How does plastic welding machines work.What are commonly seen products being produce from these machines?

Answer 1

There are many types of plastic welding techniques. Here is a website that explains them:

http://www.dukcorp.com/us/products/thermo/plastics/upa.htm#What%20is%20ultrasonic%20plastic%20assembly?

I worked for a company that made plastic totes for automotive parts. We would also repair them for out customers as needed.

Answer 2

usually they work with heat and pressure. they heat something up like a window frame and put it togethere with pressure once it is melted and let it cool