Narrow gap welding techniques have been developed to
diminish welding work and to meet the requirements of
high fracture toughness in heavy plate structures.
Welding in narrow grooves has been found sensitive to
weld defects. It requires strict procedural tolerances
which calls for new thinking in the workshop.
Different variants of gas metal arc welding using narrow
grooves, such as rotating the arc, oscillating the arc
and pointing the arc into the corners of the groove, are
presented. Each variant includes several different
solutions depending on the supplier. A fairly detailed
description is given on the most reliable variants.
A short comprasion is also made with other narrow gap
welding methods and other welding processes for thick
|Place of Publication||Espoo|
|Publisher||VTT Technical Research Centre of Finland|
|Number of pages||28|
|Publication status||Published - 1984|
|MoE publication type||D4 Published development or research report or study|
|Series||Valtion teknillinen tutkimuskeskus. Tiedotteita|
- gas metal arc welding
- metal plates