MetFab - Air Products Welder's Handbook - Flipbook - Page 4
Contents
Introduction
Welding basics
2
Why use welding?
3
Which process?
4
MIG/MAG welding
Principles
6
Operation
7
Welding positions
8
Gases for MIG/MAG welding
Maxx® gases: our best weld process gases
Standard weld process gases
10
10-11
11
TIG welding
Principles
12
Operation
12
Power sources for TIG welding
13
Choice of current
14
Crater filling
14
Tungsten Electrodes
15
Torches
17
Maxx® gases: our best weld process gases
18
Pulsed TIG
19
TIG spot welding
19
Plasma arc welding
20
Gas backing
21
Welding of sheet metal
22
MIG/MAG welding of plate
Recommended joint preparations for butt welds
in carbon and stainless steels
24
