Manuell sveising
Magnetism in welding: how to deal with magnetic blow
24. november 2025
When welding ferritic steels, especially high-strength grades, magnetic blow can become a real challenge. This phenomenon occurs when magnetic fields interfere with the welding arc, causing instability, spatter, and sometimes making welding almost impossible.
Jani Kumpulainen
Jani Kumpulainen
Jani Kumpulainen
Welding Technology Manager at Kemppi Oy. International Welding Engineer (IWE) and Inspector (IWI-C) who has over 15 years of experience as a welding expert in welding process development, welding coordination of pressure vessels and international sales. Interested in understanding the whole welding industry including welding processes, weldable materials, and welding quality standards.
Relaterte produkter
Produktfamilie
Master T er en premium TIG-sveisemaskin for profesjonell AC DC TIG-sveising. Den leverer førsteklasses sveisekvalitet, presisjon og energieffektivitet. Med avanserte funksjoner som MAX WeldClean og DeMagnetization-modus øker den produktiviteten samtidig som den sikrer konsistente resultater.
Flere blogginnlegg
How does steel welding benefit from special processes?
Welding mild steels may often be considered a simple task. However, welding these steels has specific characteristics that can make the welding process challenging.
Manuell sveising, Sveise-ABC
TIG-sveising
Bruksområder, sveisere, teknikker for TIG-sveising
Sveise-ABC
Kemppi's advanced welding processes: MIG/MAG welding
One of the most important elements in developing welding equipment has long been improving welding processes and creating new process variations. Modern measurement and arc control methods have made a wide range of variations in the arc welding process possible. These advanced welding processes significantly improve welding production efficiency and weld quality. This article presents the special processes and operations developed by Kemppi for MIG/MAG welding.
Sveise-ABC, Manuell sveising
Minarc M 223 Auto & 223P Auto vs MinarcMig Auto: key upgrades and when you’ll feel it at the arc
The Minarc M 223 Auto and 223P Auto bring meaningful changes you’ll feel in production. This guide breaks down what’s new versus MinarcMig Auto, which model suits which work, and how the updates show up in arc stability, parameter control, and everyday efficiency across thin sheet to more demanding applications.
Manuell sveising, Innovasjon
What Nordic Welding Expo 2026 revealed: robotics, laser welding and the future of fabrication
The Nordic Welding Expo 2026 highlighted where welding is heading. While automation and laser welding are accelerating, the real advantage lies in workflows that deliver repeatable results under real constraints and digital traceability is becoming part of everyday production
Automatisering av sveising, Innovasjon
Kemppi's advanced welding processes: TIG and stick welding (MMA)
In TIG welding, process development has mainly focused on modifying the current modes in different situations. In practice, this means variations of pulse and AC welding, as well as ignition or tack welding. In the case of pulse welding, the welding machine user has numerous choices, as the adjustment possibilities for these process variations are highly versatile.
Sveise-ABC, Manuell sveising
