John Stewartbooks

2012年3月26日
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1976
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JOHN P. STEWART

documented on the job working procedures as a means of teaching others the important skills a welder/fitter needs to know to become a high profile expert.



The author worked for 30 years as a welding and fitting specialist.

Over the years he manually welded hundreds of parts for rail cars while working for Canadian Car co. in Montréal in the late 50’s. He built and welded numerous apparatus for paper machinery and rolling mills working for Dominion Engineering in Lachine Quebec and he put bridge spans together working for the Dominion Bridge co.

Later as a welder/fitter he helped build turbines for the Churchill Falls Power project in Labrador and also assembled mining equipment for large exploration companies. Building large heavy tonnage fabrications was his specialty and if something wasn’t right he was the one the engineers turned to for solutions.


He has written and published books that are the result of his experiences and which can be found in thousands of welding shops and schools throughout the American Continent and other parts of the world.



He developed many procedures and skills which can only come from trial and error especially for Flame Straightening large turbine runner blades which were only acceptable within their designed contours and tolerances.



This knowledge became useful also for cambering large beams which is a needed heavy load counter measure in many industries and which is a skill not very many welders possess...

This led to creating other actions for repairing weld structures that were spoiled because of poor distortion control procedures by inexperienced or careless welders.

The procedures he developed can be found in his books


Distortion Control
Flame Straightening Technology and Distortion Control

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