Sorted:

How to weld aluminium correctly with MIG or TIG: A guide to aluminium welding

Stick welding machine – What should I look out for?

Introduction to welding – basic information to get you started

The contact tip in GMAW / MIG / MAG welders

GMAW welding machine – What should I pay attention to?

Filler Materials Overview

Material characteristics

Physical Basics

Modern welding processes

History of welding