purpose of this web site is to share technical information in the field
of welding and welding related activities. It has no affiliation to any
organisation or company
my name is John Dyson. I work as a Chartered Engineer involved in the design
and commissioning of pressurised plant and equipment. I am also a registered
European Welding Engineer.
Note email address changed to 2008 just add '@' and this website name.
To Prevent Weld Failure :-
Common causes of weld failure and how they can be avoided.
the strength of welded connections :- Design Rules for calculating
the strength of butt and fillet welded joints subject to Direct, Bending
and Torsional loadings. Plus guidance on calculating centroids and second
moment of area.
Procedures and WPS's :-
Welding procedure and welder approval qualifications to European, ASME
and the new EN ISO Standards explained. Plus how to draft welding procedure
Of Welded Joints :- A practical guide to Fatigue in welded structures.
Mechanics : - Basic guide to fracture mechanics and fitness
for purpose assessment + ASME Impact requirements
How to reduce the risk of hydrogen cracking in carbon and low alloy steels.
+ Preheat calculator.
information on the welding and treatment of:- stainless steel, duplex.
More materials to be added shortly. + Welding dissimilar materials and
welding without PWHT.
A brief guide to welding symbols to EN22553, BS499 and AWS.
Pressure Equipment Directive
This Directive covers the
design, manufacture and installation of Pressure Equipment Within Europe.
+ The latest views and interpretations
Pressure vessel design to
both American (ASME 8) and European codes (EN13445).
Element Analysis:-A basic guide to solving structural and heat
transfer problems using matrix methods. + Free Beam Calculation Software
Links to other sites covering
welding, metallurgy and free software + Sites of general interest.