Bent teeth in tooth bar

[Brad_Blazer]

I made a variation on JohnF's toothbar.
http://www.tractorbynet.com/forums/showthread.php?t=76427&highlight=tooth
Instead of cutting and welding the 1" square bar teeth, I bent them. For the cross bars, my neighbor let me have a couple of worn out cutting edges from some type of scraper. The better one was 5-6" wide. the smaller one was about 3" wide on the most worn end. They both had 1 unused beveled edge. I welded the attachment bars and teeth to the larger bar. Then I welded the smaller bar under the teeth to capture the bucket edge and protect it.

 

[Bill_in_MI]

How did you do the bending? Unless you said so and I missed it. Looks very nice.

 

[JohnF_ASI]

That's a good idea!

I realised with mine that I couldn't pick up the last inch of anything from a flat surface because of the 1" thickness of the teeth under the bucket.

That also reminds me that I need a hydraulic press for my shop as well..

JohnF

 

[Brad_Blazer]

Thanks for the comments guys.

How did you do the bending? Unless you said so and I missed it. Looks very nice.

If you look at the picture "tooth in press" you will see an unbent tooth in my 12 ton press. I put a pair of worn out machine vise jaws that are basically 2" square bars under the tooth. The whole thing is at an angle for the tooth to clear the press uprights. I pressed directly on the tooth with the press stud which is a 1" diameter round bar. When making duplicate teeth, I marked the press position to place the new tooth, then put the original tooth next to the new one as I completed the bend to achieve the same angle. I kept the support spacing fairly wide to avoid overloading the press. It felt like I was pretty much at the limit of the 12 ton press.

 

[3RRL]

Good job Brad,
That toothbar came out nice and sturdy. How far out do the teeth protrude from the bucket?

 

[deerhunterf350]

B Blazer,

Do you have access to 1 x 1 bar stock , or did you order from someone.

How much bar stock did it take to complete your project?

How much was the Bar Stock?

 

[Brad_Blazer]

Thanks Rob,
The teeth protrude about 6" past the edge. Total length was about 13.5" per tooth including the bevels. The length looked good to allow for wear and to use tube extensions like JohnF did.

Deerhunter,
I bought the 1x1 bar at the local steel supply. http://www.bencosteel.com/
It was $40 for a 20' length of hot rolled steel. Cold rolled would have been the $40 for 10' and they didn't have it in stock. The main difference between HRS and CRS is dimensional tolerance which didn't matter to me. I have 12.5 feet left over so I guess I used about 7.5 feet to make 7 teeth.

I did a yellow pages search of steel suppliers in your area:

Barnes Pipe & Steel Supply
(314) 416-0700 5520 Telegraph Rd # 201
St Louis, MO

Clayton Steel Supply
(314) 821-7996 2216 Mason Ln
St Louis, MO

Manufacturers Steel Supply Co
(314) 371-5600 400 Edwin St
St Louis, MO

Sachs Steel & Supply Corp
(314) 725-8364 7010 Saint Charles Rock Rd
St Louis, MO

Just give them a call. I'm sure they will be happy to quote you a price. They can usually cut to length for a nominal fee if you need it.

 

[deerhunterf350]

B Blazer

Thanks for the response and the search for local Steel suppliers, I was curious of price , and knew if you worked at a Fab shop with access to Steel you probably would not know the Retail price for Steel.

Thanks again for the Search.

Dan

 

[deerhunterf350]

B Blazer or anyone else,


Is there a difference is strength ( Hot vs Cold Rolled ) or is it just the Tolerances of the finished steel ?

 

[3RRL]

B Blazer or anyone else,


Is there a difference is strength ( Hot vs Cold Rolled ) or is it just the Tolerances of the finished steel ?

Probably not for the same kind of steel. Basically the process to make Hot rolled or cold rolled produces the difference in finish...hot rolled having that sandblasted sometime crusty surface (scale not removed) and colled rolled being much cleaner and very close to nominal size. The difference in strength is determined by the carbon and other alloys in the steel and associated heat treat properties and strengths thereafter. AISI-SAE steels usuall have 4 numbers,...the first 2 usually designate the type of steel and the last 2 designate the amount of carbon...usually in hundredths of a percent. Letters in front of the number usually tells what group designation it is and letters behind the number usually tells hardness capability after heat treat.