Technical articles: MIG/MAG

This paper gives an overview of the field properties in arc welding applications, the relevant coupling principlesto the human body, permissible exposure values and possible assessment procedures.

CMT: The new revolution in digital GMA welding

CMT stands for Cold Metal Transfer. In the context of welding, “Cold” is a relative term, of course. Nevertheless, the fact is that in this new process, the workpieces to be joined - and above all their weld zones - remain considerably “colder” than they would do in conventional GMA (gas metal arc) welding. The reduced thermal input leads to advantages such as low distortion and higher precision.

Digitally controlled GMA power sources

The ever more exacting demands nowadays being made of base and filler metals, and of materials-joining technology, have gone hand-in-hand with the continued development of power sources for GMA welding.

MIG-brazing

The specific advantages of MIG brazing have established this alternative joining process in numerous branches of industry. The classic area of application, for processing galvanised sheets, has since been joined by a number of applications for uncoated, high-alloy and low-alloy steels.

MIG brazing of galvanised light-gauge sheets

The increasing demands being made nowadays for a reduction in the risk of corrosion damage have led many branches of industry to make much more extensive use of coated sheets.