Glossary of Welding Terms and Acronyms

Proportional Integral Derivative Controller - an instrument used by control engineers to regulate temperature, flow, pressure, speed, and other process variables in industrial control systems. PID controllers use a control loop feedback mechanism to control process variables and are the most accurate and stable controller.

Programmable Logic Controller - industrial computers, with various inputs and outputs, used to control and monitor industrial equipment based on custom programming.

Projection Welding - this is a form of resistance welding that passes current through a piece that is not flat workpiece but instead can be variable including nuts.

Portable Weld Station -