Kevin, at Boeing in those areas where structural welding was performed on the airplane, test specimans of the same lot of material were fabricated and included with the parts which were to be welded. Those test specimans were welded at the same time the assembly took place using the same weld material and done by the same welder. Those specimans were subjected to several laboratory non-destructive and destructive tests to determine the strength of the weld. The actual weld was also x-rayed for a look and analysis of the actual fusion of the materials by the welder. The lab results, x-rays and welder certification data are permanently stored in the completed records of the airplane longer then the aircraft is in service. We were certainly building too and having to meet different specifications then we are discussing here but that experience has enforced my feelings about welding by novices in lieu of using mechanical fastening hardware and components of known and documented strengths. I hope you enjoy your job as much as I enjoyed my almost 40 year career with Boeing as I wouldn't have traded a day of it for some other line of employment, Hal.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
... [Read Article]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
