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Job Knowledge

   
Helpful articles with information about welding processes.

Hardness Testing Part 2

A practical description of micro-hardness testing to investigate hardness in a very small area and portable hardness testing on components...

Mon, 19 October 2015

Health Risks from Fume and Gases During Welding

Factors affecting welding fume composition for gas, MMA, FCA, MIG/MAG, TIG, plasma and submerged arc processes. (Oct.97)

Mon, 19 October 2015

Health, Safety and Accident Prevention - Arc Welding

This article gives guidelines on health and safety considerations when arc welding to ensure safe practice and prevent accidents. The...

Mon, 19 October 2015

Health, Safety and Accident Prevention - Control of Welding Fume

Factors that affect welder's exposure to fume are summarised. The measures and equipment used to control welding fume and gases...

Mon, 04 January 2016

Health, Safety and Accident Prevention - General

The general hazards which may arise when carrying out welding and related operations, are identified. (Apr.1997)

Mon, 19 October 2015

Health, Safety and Accident Prevention - Welding Fume Assessment

The principal health and safety considerations are looked at to ensure safe welding practices. A general overview of the hazards...

Thu, 23 March 2017

Heat Treatment of Welded Joints - Part 1

Before discussing the range of heat treatments that a metal may be subjected to, there is a need to clearly...

Thu, 23 March 2017

Heat Treatment of Welded Joints - Part 2

Tempering is a heat treatment that is only relevant to steels and is carried out to soften any hard micro-structures...

Thu, 23 March 2017

Heat Treatment of Welded Joints - Part 3

Local PWHT needs careful planning to ensure that heating and cooling rates are controlled and that an even and correct...

Tue, 20 October 2015

Heat Treatment of Welded Joints - Part 4

There are several methods that may be used to increase the strength of a metal; alloying, quenching of steel, work hardening, and...

Tue, 20 October 2015

High Temperature Hydrogen Attack (HTHA)

Risks and Mitigation in light of the U.S. Chemical Safety Board (CSB) investigation into the Tesoro Refinery industrial accident.

Tue, 16 May 2017

Hot Gas Welding of Plastics: Part 1

Describes the hot gas welding process, welding equipment and welding parameters, materials that can be hot gas welded and welder...

Mon, 19 October 2015

Hot Gas Welding of Plastics: Part 2 - Welding Techniques

The hot gas welding process is described covering material preparation, joint preparations, procedures for round nozzle welding and speed welding,...

Wed, 22 March 2017

Hot Plate Welding of Plastics Moulded Components

The hot plate welding process is described in some detail, covering joint design, welding equipment, procedures and welding conditions.

Mon, 19 October 2015

Job Knowledge

Helpful technical articles with information about welding processes.

Fri, 09 February 2018

Laser Cutting: Process Variants

CO2 and Nd:YAG laser cutting are discussed. Topics include process characteristics, assist gases, cut quality and process economics

Mon, 19 October 2015

Linear Friction Welding - Job Knowledge

An introduction to Linear Friction Welding.

Tue, 31 October 2017

Manual Metal Arc Gouging

The principles of MMA gouging are outlined including process characteristics, electrodes, power sources, operating parameters and applications. (Jul. 1995)

Fri, 30 September 2016

Measurement of Arc Welding Parameters

Job Knowledge 139 - Measurement of Arc welding parameters.

Wed, 25 May 2016

Mechanical Testing - Notched Bar or Impact Testing

The Charpy-V test for characterising notch toughness is described. The qualitative nature of the test, outline procedures and test analysis...

Thu, 17 August 2017

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