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Helpful articles with information about welding processes.

Cutting Processes - Application of Oxyfuel Cutting

Includes advantages of the process, the choice of fuel gas and nozzle design to maximise performance, and best practice to...

Mon, 19 October 2015

Cutting Processes - Laser Cutting

Describes the suitability of common materials for laser cutting; process advantages; relationship between lens properties and cut thickness; comparison of...

Thu, 03 March 2016

Defects - Hydrogen Cracks in Steels - Prevention and Best Practice

Methods of reducing the risk of hydrogen cracking when arc welding steels are described

Mon, 19 October 2015

Defects - Lamellar Tearing

The characteristic features, principal causes and best practice in minimising the risk of lamellar tearing are described

Mon, 19 October 2015

Defects - Solidification Cracking

Covers identification; causes in structural and stainless steels and in aluminium alloys; avoidance; acceptance standards; detection and remedial action for...

Mon, 19 October 2015

Defects / Hydrogen Cracks in Steels - Identification

Describes the characteristic features and principal causes of hydrogen cracks in ferritic steels

Mon, 19 October 2015

Defects / Imperfections in Welds - Reheat Cracking

The characteristic features and principal causes of reheat cracking are described. General guidelines on best practice are given so that...

Mon, 19 October 2015

Defects / Imperfections in Welds - Slag Inclusions

The characteristic features and principal causes of slag imperfections are described

Mon, 19 October 2015

Defects/Imperfections in Welds - Porosity

The characteristic features and principal causes of porosity imperfections are described. Best practice guidelines are given so welders can minimise...

Mon, 19 October 2015

Design

The edge weld is a specialised weld that has limited fields of application and is mostly used for the joining...

Tue, 20 October 2015

Design - Part 1

Weldability and mechanical properties such as tensile strength, toughness and fatigue resistance, all of which the designer must be familiar...

Tue, 20 October 2015

Design - Part 3

Fillet welds may be combined with full or partial penetration butt welds - a combination weld. The designer is therefore...

Tue, 20 October 2015

Design - Part 4

The previous article looked briefly at butt weld design where mention was made of the increased risk of producing defects...

Tue, 20 October 2015

Design Part 2

The article in the last issue of Connect introduced the fillet weld, the least costly weld type to make since...

Mon, 16 January 2017

Distortion - Corrective Techniques

General guidelines are provided on 'best practice' for correcting distortion using mechanical or thermal techniques

Mon, 19 October 2015

Distortion - Prevention by Design

The article concentrates on providing information on the application of best practice principles to limit distortion during the design and...

Mon, 19 October 2015

Distortion - Prevention by Pre-setting, Pre-bending or use of Restraint

Focuses on distortion prevention through pre-setting and pre-bending parts or use of restraint. Provides illustrated, practical information on applying techniques...

Mon, 19 October 2015

Distortion - Types and Causes

Covers several key issues on distortion in arc welded fabrications, especially causes of distortion, basic types of welding distortion and...

Thu, 23 March 2017

Distortion Control - Prevention by Fabrication Techniques

Means of reducing and controlling weld distortion are described, covering control of distortion by tack welding, back-to-back assembly and stiffening...

Mon, 19 October 2015

Duplex Stainless Steel - Part 1

The name 'duplex' for this family of stainless steels derives from the microstructure of the alloys which comprises approximately 50/50...

Tue, 20 October 2015

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