Recent Posts

Development of a Welding Shrinkage Estimation Method for High Accuracy Production in Marine Stainless Steel Exhausts

Development of a Welding Shrinkage Estimation Method for High Accuracy Production in Marine Stainless Steel Exhausts

Material shrinkage is inherent to the process of welding of structures and components. At W.R. Davis Engineering, we have established an accurate method for estimating weld shrinkage in advance so that it may be planned for in the design phase. This enables us to control the accuracy of our welding production system.

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Grit Blast Cleaning in Water - Washable Flourescent Liquid Penetrant Examination (LPE)

Grit Blast Cleaning in Water - Washable Flourescent Liquid Penetrant Examination (LPE)

NDT is a required process for the fabrication of aerospace components at the W.R. Davis Engineering plant. The American Society for Testing and Materials (ASTM) Standard E1209 specifies water-washable fluorescent Liquid Penetrant Examination (LPE). The Standard that governs LPE of aerospace components at Davis is ASTM E1417.

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University of Ottawa - The First Undergraduate Course on Welding Design, Fabrication, and Quality Control

University of Ottawa - The First Undergraduate Course on Welding Design, Fabrication, and Quality Control

The first Undergraduate course on Welding Design,Fabrication and Quality Control is currently in its first year and delivered by Kevin Bagheri, P.Eng."

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Q & A with Welding Specialist Mark Holder - Kevin Bagheri, P.Eng

Q & A with Welding Specialist Mark Holder - Kevin Bagheri, P.Eng

CWB: How long have you been involved in the welding industry? Kevin: I have been in welding industry since 1999.

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It is all about GMAW in out of Position Downward and Upward Welding

It is all about GMAW in out of Position Downward and Upward Welding

Major codes and Weld Procedure Specifications (WPS) require separate welding qualification in vertical up (Upward) and vertical down (Downward) positions for example in power generation, petrochemical, process piping industries, offshore structures, and shipbuilding.

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Effect of Post Weld Stress Relieving on Intergranular Corrosion Resistance of Austenitic Stainless Steels

Effect of Post Weld Stress Relieving on Intergranular Corrosion Resistance of Austenitic Stainless Steels

This paper deals with the applicability of various techniques for the assessment and quantification of sensitisation in Austenitic Stainless Steel Tungsten Inert Gas (TIG) welds. Welded joints of AISI Type 321 stainless steel were stress relieved at 760°C for period of up to 10 h.

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Quality Requirements for Laser Cutting of Titanium Sheets

Quality Requirements for Laser Cutting of Titanium Sheets

Different titanium alloys are frequently used in the aerospace industry owing to attractive properties at high temperature service. Manufacturing of those parts is performed by different conventional and non-conventional methods, where laser cutting is one of the latter.

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