How to Avoid the Most Common MIG/MAG Welding Defects

Svejsningens ABC

How to Avoid the Most Common MIG/MAG Welding Defects

15. februar 2021

The quality requirements in welding production increase with the optimization of structures as well as the development of materials and welding processes. Welding defects can, at worst, cause serious accidents and structural damage, so it is important to avoid them and understand the mechanisms that create them. In this text, we present the most common MIG/MAG welding defects and the ways to best avoid them.

Reetta Verho

Reetta Verho
Author

Reetta Verho

Manager, Welding Services at Kemppi Oy. International Welding Engineer (IWE) who is an active member in ISO standardization committees. Board member in The Welding Society of Finland. Passionate about welding quality and the development of welding production. Member of: K105 National mirror committee for welding, ISO/TC44/SC10 Quality management in the field of welding ISO/TC44/SC11 Qualification requirements for welding and allied processes personnel.

Flere blogindlæg

Calculation of heat input in MIG/MAG welding

Calculation of heat input in MIG/MAG welding

The new welding procedure test standard, EN-ISO 15614-1:2017, provides recommendations for the measurement and calculation of heat input. In concrete terms, what does this mean for MIG/MAG welding? And how can workshops carry out these calculations in practice?

Svejsningens ABC

Welding value with X5 FastMig

Welding value with X5 FastMig

Small improvements in welding efficiency can positively influence overall productivity and establish valuable cost savings. By investing in robust, reliable, and versatile equipment, you can improve and better manage welding project costs.

Manuel svejsning

WeldEye enables remote work in welding production

WeldEye enables remote work in welding production

Managing welding production with a cloud-based software solution has considerable advantages. For one, it gives work supervisors or quality assurance teams the convenience of working remotely from home. It increases transparency, quality and efficiency, thanks to improved information flow and traceability. The welders also receive immediate feedback on their work.

Digitalisering

Kemppi's advanced welding processes: TIG and stick welding (MMA)

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.

Svejsningens ABC, Manuel svejsning

Magnetism in welding: how to deal with magnetic blow

Magnetism in welding: how to deal with magnetic blow

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.

Manuel svejsning

Svejsning starter med brænderen

Svejsning starter med brænderen

Lad os kigge nærmere på den mest praktiske del af hver svejsning.

Manuel svejsning

Abonner på vores nyhedsbrev og få de sidste nyheder fra Kemppi som en af de første

Ved at abonnere, accepterer du at modtage E-mails med markedsføring fra Kemppi

Frontløberen inden for lysbuesvejsning

Kemppi er designførende inden for lysbuesvejsning. Vi er forpligtet til at øge kvaliteten og produktiviteten af svejsning ved kontinuerlig udvikling af lysbuen, og til at arbejde for en grønnere og mere lige verden. Kemppi leverer bæredygtige produkter, digitale løsninger og tjenester til fagfolk fra industrielle svejsevirksomheder til enkelt-entreprenører. Vores produkters anvendelighed og pålidelighed er et ledende princip for os. Vi opererer med et højt kvalificeret partnernetværk, der dækker over 70 lande, og for at gøre ekspertisen lokalt tilgængelig. Med hovedkontor i Lahti, Finland, beskæftiger Kemppi tæt over 650 fagfolk i 16 lande og har en omsætning på 209 mio. euro.

Kemppi – Designed for welders

Copyright © 2025 Kemppi Oy