WELD HARDENING
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=180941
Printed Date: 21 Aug 2025 at 8:51am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WELD HARDENING
Posted By: Tad Wicks
Subject: WELD HARDENING
Date Posted: 02 Jun 2021 at 3:01pm
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I do a considerable amount of salvaging older or no longer available parts and pieces and one problem that I have yet to solve completely is weld hardening of the base pass buildup on cast and forged steels. I have tried numerous rods, wires, pre-heat and cool down to try and alleviate the hard spots but they still show up and eat carbide like beavers eat trees during the machining processes. A friend of mine worked in construction and said any time the line boring guys showed up that they would do a base pass of 7014 before anything else, I haven't tried that yet but thought that I would give it a try with DC- to try and not disturb the bass material any more than necessary. Anybody have any tricks or tips? Thanks
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Replies:
Posted By: Coke-in-MN
Date Posted: 02 Jun 2021 at 5:44pm
On cast I have used Allstate #8 rod , or in some cases a 304 SS rod - then depending if a BUILD UP is needed following with a 7018 rod as filler or using E 70s wire feed
On cast a pre heat is needed but I have also used brass with oxy/acc for joining but then no metal rod beyond .
I had bought 3 axles for HD4 that had been welded up at seal location then machined but found the welding and machining destroyed the integrity of hardening and relieving and of stress and axles broke and a crystalline feature of axle showed - so I uses speedy sleeve to correct wear on used axles with no more breakage .
Problem on cast can be the carbon deposits which come from base and then contaminate any machining done .
Son has noticed new steel he has been purchasing is heavy with carbon deposits and is heck on saw teeth when cutting - doesn't seems to effect fabrication welding but sure is something if any machine work is needed on the raw steel before welding .
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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Posted By: steve(ill)
Date Posted: 02 Jun 2021 at 6:16pm
i weld everything i do with 7018 on DC... Never used the 7014 rod, but it is suppose to be a FAST FREEZE meaning it does not burn in as much as 7018, more sets on the surface and cools faster... Maybe that is the plan in not drawing in the carbon.. I dont know.. I do know the 7018 does draw, but i dont " machine" much after welding... more justs buildup and repair broken... My machining is normally a grinder.
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Like them all, but love the "B"s.
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Posted By: Coke-in-MN
Date Posted: 03 Jun 2021 at 7:05am
I always figured 7014 or 7024 as a drag rod for flat welding or filler rod - I welded the grouser bars on my HD5 track with it as well as grousers on D5 track I installed on my D6 -9U .
https://youtu.be/vlwmE0Naxkg" rel="nofollow - https://youtu.be/vlwmE0Naxkg
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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Posted By: ac-mike
Date Posted: 03 Jun 2021 at 7:33am
For build up work that will be machined, I have always used #6013 for steel applications. I know this is not the strongest weld but it does machine.
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D-12III, 200D, 170G, HD-3, D19D 3pt, D17D High Crop, WD45G p/s, D15IID, D15IIG, D15G IND, 655, (3)WD45D p/s, 700, 816
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Posted By: Lee Bradley
Date Posted: 03 Jun 2021 at 9:02am
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Some videos here well worth the time.
https://www.youtube.com/watch?v=FLYdhfgF6Pg%20" rel="nofollow - https://www.youtube.com/watch?v=FLYdhfgF6Pg
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