Fabrication of a 200-4R Transmission Mount



Re: Fabrication of a 200-4R Transmission Mount

Postby Indycars » March 16th, 2013, 4:54 pm

Rick
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Re: Fabrication of a 200-4R Transmission Mount

Postby 87vette81big » March 16th, 2013, 5:12 pm

I would use what Busterm recommends Rick.
I have used cold rolled steel stock. Very easy to Mig weld on.
Stainless steel looks great. Many different grades made. Is expensive Good quality stainless.
Stainless steel should be Tig welded.
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Re: Fabrication of a 200-4R Transmission Mount

Postby Indycars » March 16th, 2013, 5:27 pm


I think A500 is what busterrm is suggesting, but I wanted to confirm before I order.

ASTM A500 / A500M
Abstract
https://us-dc2-order.store.yahoo.net/yh ... t_id=&ysco

This specification covers cold-formed welded and seamless carbon steel round, square, rectangular, or special shape structural tubing for welded, riveted, or bolted construction of bridges and buildings, and for general structural purposes. This tubing shall be produced in both welded and seamless sizes and must have the chemical requirements of carbon, manganese, phosphorus, sulfur, and copper. The steel shall be produced by either open-hearth, basic-oxygen, or electric-furnace melting process. When steels of different grades are sequentially strand cast, the steel producer shall identify the resultant transition material and remove it using an established procedure that positively separates the grades. The tubing shall then be made by a seamless or welding process. Welded tubing shall be made from flat-rolled steel by the electric-resistance-welding process. The longitudinal butt joint of welded tubing shall be welded across its thickness in such a manner that the structural design strength of the tubing section is assured. Tension test and flattening test shall be conducted to the specimens. All tubing shall be inspected at the place of manufacture to ensure conformance to the requirements of this specification and must have a workmanlike finish that is free from defects.


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Re: Fabrication of a 200-4R Transmission Mount

Postby 87vette81big » March 16th, 2013, 5:38 pm

Sounds good Rick.
Only better would be chrome moly steel.
Sounds like Busterm is the master metal fabricator and welder.
I dont think he will disappoint.
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Re: Fabrication of a 200-4R Transmission Mount

Postby busterrm » March 16th, 2013, 6:40 pm

Chromemoly would be superior but it is hard to weld correctly at home, have to go through a heating and cooling process. But yes Rick A 500 is a good quality tubing.
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Re: Fabrication of a 200-4R Transmission Mount

Postby busterrm » March 16th, 2013, 6:49 pm

I will be bringing a dry rig and my AC/DC machine, with me. I will have to practice before we do the actual assembly. I believe its going to be educational for Indycars and Myself. A few things you need to get is a bottle of argon, 2 x 1/8 thoriated 2% tungsten electrodes, several tig welding rods. Also would be a good idea to get some 3/32 7018 DC rods also.
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Re: Fabrication of a 200-4R Transmission Mount

Postby busterrm » March 16th, 2013, 11:39 pm

Hey Rick, If your going to buy 8 foot of the tubing, we may as well use the tubing your going to buy for both the crossmember and the little shorts. That will give us the exact same steel at all the weld joints. Parent metals are just as important as the welding itself. You have a small propane torch don't you?
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Re: Fabrication of a 200-4R Transmission Mount

Postby Indycars » March 17th, 2013, 10:43 am

busterrm wrote:I will be bringing a dry rig and my AC/DC machine, with me. I will have to practice before we do the actual assembly. I believe its going to be educational for Indycars and Myself. A few things you need to get is a [1]bottle of argon, [2]2 x 1/8 thoriated 2% tungsten electrodes, [3]several tig welding rods. Also would be a good idea to get some [4] 3/32 7018 DC rods also.

[5]If your going to buy 8 foot of the tubing, we may as well use the tubing your going to buy for both the crossmember and the little shorts. That will give us the exact same steel at all the weld joints. Parent metals are just as important as the welding itself. [6]You have a small propane torch don't you?



[1] Is there any minimum size that we will need or will the smallest work if that's
what I decide to buy???

[3] Any specifics you can give me on this one???

[5] Good idea!

[6] Yes I do have a propane torch. Is this for pre-heating the metal before welding???
Would a MAP Gas torch be better???

What about my 240v/50a plug, did you look to see if it was the same as yours when
you were here???

Rick
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Re: Fabrication of a 200-4R Transmission Mount

Postby busterrm » March 17th, 2013, 1:35 pm

1.It has been awhile since I have bought a bottle for home, but they should come in several sizes. I would say a medium size bottle, I don't know the exact sizes, but one thats about waist high will be enough.
3. Size 3/32 carbon steel, they should be 24 - 36 inches long.
5. You can go ahead and cut the length of the main crossmember, but leave the length to be cut for the shorts and we can cut them when we assemble it. What we need to do is leave them a little long and grind a small notch to go around the radius in the edge of the tubing. I will show you what I mean when I am there.
6. Yes, just need enough heat the material to dry the moisture out before welding it, the propane torch will be plenty.
Really, we can go get this stuff when I get there, probably be easier to cut a few costs that way.

The plug is probably the same as mine, but just to be sure, take a picture of your male and female plugs and post them to verify that.
Bob
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Re: Fabrication of a 200-4R Transmission Mount

Postby Indycars » March 17th, 2013, 2:58 pm


Here is what I have for power to the welder, it's a NEMA 6-50R Receptacle.

WelderNEMA 6-50R Receptacle.JPG
Welder240vReceptacle6-50R.jpg


Placed the steel order earlier today. Stock Car Steel doesn't have the cold formed rectangular tubing.

http://www.allmetalsinc.com/


SteelOrder_03_17_2012.jpg


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Rick
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- Check Out My Dart SHP Engine Project: viewtopic.php?f=69&t=3814
- Need a Dynamic Compression Ratio Calculator: viewtopic.php?f=99&t=4458
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Re: Fabrication of a 200-4R Transmission Mount

Postby 87vette81big » March 17th, 2013, 6:56 pm

If you have your own empty bottle , the welding supply shop wont charge you a core amount.
Pretty much you wont pay $200. Instead $80 to 100 for Argon CO2 welding shielding gas Bob needs.
They will keep the empty bottle. Just give you a full one Rick.
Check around, might be surprised who has empty welding shielding gas bottles you are given for free.
Dont buy a small 10 to 15 bottle, waste of $, run out of shielding gas in a middle of a Fabrication job.
Been there., frustrating to say the least.
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Re: Fabrication of a 200-4R Transmission Mount

Postby Indycars » March 17th, 2013, 9:33 pm

Not sure where I would check around for empty cylinder?

Dont buy a small 10 to 15 bottle


Do you mean 10 to 15 cuft?
Rick
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Re: Fabrication of a 200-4R Transmission Mount

Postby busterrm » March 17th, 2013, 9:34 pm

Nah we are going to use straight Argon. Argon/CO2 mix is used for MIG. I don't think a bottle of straight argon will be that much, at most 50 bux, they will let you rent the bottle for a month for a small charge. Do you have a Air Gas outlet in OKC Rick? If there is one there I might be able to use my account with them to get the bottle rented for nothing.
Bob
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Re: Fabrication of a 200-4R Transmission Mount

Postby busterrm » March 17th, 2013, 10:05 pm

Indycars wrote:Not sure where I would check around for empty cylinder?

Dont buy a small 10 to 15 bottle


Do you mean 10 to 15 cuft?
Thats the bottle size Rick, that is the small bottle, we will need the bottle just about that size. That size is the same size as the O2 bottles you see people rolling around that are on oxygen masks. The next size up will come to your waist or above at the bottle and the valve will be above your waist. I just looked at Airgas's website the bottle we need is a 40 cf. The bottles are measured in cubic feet, the volume is quite a bit more than that, a 40 will hold about 1500 psi. Let me do some research and I will find out what they cost. If all else fails I will pick up a bottle here and you can pay me for it when I get there.
Bob
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Re: Fabrication of a 200-4R Transmission Mount

Postby busterrm » March 17th, 2013, 10:13 pm

Indycars wrote:
Here is what I have for power to the welder, it's a NEMA 6-50R Receptacle.

WelderNEMA 6-50R Receptacle.JPG
Welder240vReceptacle6-50R.jpg


Placed the steel order earlier today. Stock Car Steel doesn't have the cold formed rectangular tubing.

http://www.allmetalsinc.com/


SteelOrder_03_17_2012.jpg


Dang Rick that welder must really be a dinosaur! I have not see one of those plug in ions, I will have to look at my welder, if all else fails we can remove my plug and put yours on my cable and go to town.
Bob
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Re: Fabrication of a 200-4R Transmission Mount

Postby 87vette81big » March 17th, 2013, 10:15 pm

I am in Illinois, they like to charge $.

Staying ahead of the game is must.
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