Tool Talk Discussion Board |
Re: 1928 compresser ,cast part broke.
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Bob - MI on January 14, 2005 at 10:57:15 from (66.14.205.20):
In Reply to: 1928 compresser ,cast part broke. posted by oliverdave on January 14, 2005 at 06:25:19:
My guess is that the part is cast iron? If so, this is tough to weld, actually bordering on impossible at times. When iron cracks, there is significant stress on the part and the material is embrittled throughout the region. Chances are this is a fatigue crack which has worked it"s way through the grain structure until it caused failure. Older parts have naturally aged and that lowers ductility. Lower ductility = brittle. That"s what sunk the Titanic, low ductility iron hull plates, embrittled by poor microstructure and low temperatures resulting in large holes on impact. Brazing is often the only way to do repairs and success is hit and miss. Repaired parts crack due to localized temperatures ramping up and down that create more stress and more cracks. Gradual heating of a wider area followed by a slower cooling cycle helps quite a bit. Whatever you do it should be gradual. No water quenching. If there is a tool and die shop in your area that does repairs on cast iron Permanet Mold casting tooling, they will have experience with iron repairs and would be good to talk to. Cast iron dies are getting more scarce due to repair difficulties but they last quite a while and there are still shops out there that can do repairs. Good luck
Follow Ups:
Home
| Forums
Today's Featured Article -
Show Coverage: Godfrey, Illinois Country Days - by Cindy Ladage. Except for last fourth of July's Old Gold show in Springfield, Illinois, I don't remember when it was so hot. Nevertheless, the heat didn't keep vendors and visitors alike from enjoying the third annual Country Day's Event. Jane Elliott said the event was originally a one man show. "Barry Seiler, owner of Country Town Farm Supply store used to invite people up to the Johne Deere store. He would give hats and a free meal for everyone that brings a tractor." Elliott said while this
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. 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. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|