Micro Arc Product Overview

MacGregor Welding Systems supply a range of programmable pulsed arc welding power supplies that are used predominantly within applications such as: 

  • Coil Termination
  • Relays
  • Solenoids
  • Pencil Coils
  • Transformer Coils
  • Actuators
  • Inductors
  • Reed Switch Assemblies
  • Seam Welding
  • Nuclear Fuel Rod Assemblies
  • Stranded Wire Preparation (Solidification of strands prior to resistance welding -prevents wire strands from splaying)
  • Thermocouple Junction Welding
  • Lamp Manufacture (Side Wire Termination)

Definition

Pulsed Micro Arc Welding uses a Linear DC TIG welding power supply with a proprietary MWS Arc Start System. The arc start system allows the welding arc to be initiated without contacting the part. The system controls the output current and time of the welding pulse allowing for precise heat input to the part. The system automatically compensates for the increased arc length as the process continues ensuring stability.

Advantages

The pulsed micro arc welding process allows a welding joint to be made without the addition of filler material and without contact with the assemblies by the welding electrode. The process provides a lead free alternative to soldering in coil termination using the pin material to form the weld joint. The ability to control the welding current accurately makes the system ideal for high precision TIG welding applications where short controlled welds are required. Multiple output systems make the technology ideal for products with multiple terminations that need to be made by reducing the capital cost of providing multiple welding stations to increase throughput and reduce the amount of floor space required.

Standard Models

Arc Voltage Monitor

A sophisticated monitoring system is available which analyses the arc voltage and compares it to a preset graphical window. This enables the process to be closely monitored ensuring total repeatability in high volume production.

For further information on the arc welding process, please click here.

For thermocouple manufacturing application notes, please click here