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Old 05-01-2011, 05:49 PM
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wumpus138 wumpus138 is offline
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Default Busy with school but there's still time for fun

As I am finishing up another year of college with finals this week, I have been working on some interesting projects. As part of this my dad convinced me to buy a camera to document what I have been working on. Your part of the deal? You get to see the pics now...

Here's a first set to start it off with. At work I got to put a new shank on a 30" excavator bucket.
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Old 05-01-2011, 06:11 PM
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This is some sort of rotor for a vehicle, not really sure of all the details but I do know it is titanium and a pain to work on/weld. I will be working on this more this coming week and hopefully I will have some more pics of it then.

1. Here is a side shot looking in- shows how tight it is...
2. The color a titanium weld should look like silver to a straw color, when you get into purples, reds, and blues you have too much heat input
3. Esab Caddy Tig 2200i not sure if I like this machine yet or not.
4. Overview
5. This was before I welded on it on Fri and I forgot to get pics of it before it got sent out-don't worry I have another one to do this week...


And the detail for those who were wondering
Max Amps -90
35cfh in a big gas lens- I'll get a pic of that also
Tungsten stickout of about an 1 1/4" in order to get in those tight spots
Steam cleaned and some of the work done in a argon chamber

any questions shoot em at me...

paul
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Old 05-01-2011, 06:13 PM
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I forgot to add the frustrating part with the titanium was the whole "Here we want you to weld this but we don't have anything for you to practice on so make it right the first time"
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Old 05-01-2011, 06:24 PM
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Never tried welding titanium, but I do know it's interesting cr@p to try to machine.

Nice repair on the bucket, first time I've seen spring pins used to hold teeth on though. I do have to wonder what someone was tugging on to snap a shank like that, looks like about a 12-15 ton machine by the bucket size, and not a ton of digging on that bucket either judging by the wear. (or lack thereof.)
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Old 05-01-2011, 06:30 PM
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Quote:
Originally Posted by greywynd View Post
Never tried welding titanium, but I do know it's interesting cr@p to try to machine.

Nice repair on the bucket, first time I've seen spring pins used to hold teeth on though. I do have to wonder what someone was tugging on to snap a shank like that, looks like about a 12-15 ton machine by the bucket size, and not a ton of digging on that bucket either judging by the wear. (or lack thereof.)
Kubota KX080 a 9 ton unit and I believe the story goes as it is a rental machine they were working a shale bed and were prying with it and she snapped. Somebody else broke the corner shank opposite end of the bucket.
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Old 05-01-2011, 06:58 PM
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Good show, Paul. Thanks.
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Old 05-01-2011, 07:01 PM
kbs2244 kbs2244 is offline
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Is that some kind of disk brake?
Do you have any idea what it is off of?
That stuff is not cheap.
You really want to save weight to use it.
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Old 05-01-2011, 07:34 PM
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Quote:
Originally Posted by cutter View Post
Good show, Paul. Thanks.
Hopefully I can post some more...
Quote:
Originally Posted by kbs2244 View Post
Is that some kind of disk brake?
Do you have any idea what it is off of?
That stuff is not cheap.
You really want to save weight to use it.
It is a front rotor off an experimental vehicle is all I have been told. Supposedly there is an aluminum hub that will be bolted into the titanium part that will then bolt to the cars hub. They could have made the whole project easier if they cut slices through the outer plates where fins are supposed to go and then made corresponding tabs on the fins that went through the plates and they could then be fusion welded from the outside making the process easy. But alas they didn't do that
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Old 05-01-2011, 07:56 PM
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GWIZ GWIZ is offline
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A non professional welds-man told me that titanium needs to be welded in a Argon chamber (If I recall correctly Argon gas ? or maybe it was helium), otherwise the part will break up.
A few auctions that I was at had plastic domed chambers for welding.


As for color, a welding department supervisor told me for welding SS, use the biggest cup size you can find otherwise you get the blue color on SS.
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Last edited by GWIZ; 05-01-2011 at 08:05 PM.
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Old 05-01-2011, 08:42 PM
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Quote:
Originally Posted by GWIZ View Post
A non professional welds-man told me that titanium needs to be welded in a Argon chamber (If I recall correctly Argon gas ? or maybe it was helium), otherwise the part will break up.
A few auctions that I was at had plastic domed chambers for welding.
Correct -argon is used in a chamber when welding this. We have a chamber that we have been using, but due to the spacing of the disks it has been really hard to get the correct angles/sight to use the chamber. We have been using a second gas lens as a trailing shielding source.
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