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Registered
Join Date: Nov 2003
Location: South West Florida
Posts: 2,508
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Welding question
I am going to have some 1/2" plates welded to the side of a 2" square bar. Its for a trailer drop hitch. This is beyond my welding know how and 110 wire welder. I'm going to try and get it done where I use to work, if they have the time. If not I'll find someone to do it. My question is should I grind the edges of the square bar to make a bevel?
This is not the actually plates that I'm going to have welded on, but this is the idea. ![]() I plan on cleaning up the steel of coarse. Also would it help if I tack welded a few spots? Or should I just let the guy doing the welding do it. I'm not sure who I'll get to do it, and since they will be doing me a favor, I want to make it as easy for them as I can.
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2000 Boxster S (gone) 1972 911s Targa (sold) 1971 911t coupe roller (sold) 1973 911t coupe / 3.2 (sold) Gruppe B #057 |
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Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,804
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What you have mocked up is scary...
drop some coin and buy a proper hitch!!
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Don't feed the trolls. Don't quote the trolls ![]() http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
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Registered
Join Date: Jan 2002
Location: Long Beach CA, the sewer by the sea.
Posts: 37,787
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Lap joints don't require bevels. The common use of the bevel is the butt joint so you can get a "root" weld down in the V and build up from there. On a lap, you run the root weld at the bottom of the lap and build up. Same with corner joints, inside or outside.
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Registered
Join Date: Nov 2003
Location: South West Florida
Posts: 2,508
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Thanks milt.
The receiver hitch will come apart before this. ![]()
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2000 Boxster S (gone) 1972 911s Targa (sold) 1971 911t coupe roller (sold) 1973 911t coupe / 3.2 (sold) Gruppe B #057 |
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You do not have permissi
Join Date: Aug 2001
Location: midwest
Posts: 39,921
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Engineering CAD programs can stress-test a design theoretically, but image what that joint will be subject to: foreward and aft stresses up to 30degrees offset.
If you are unsure of the strength of a perpendicular connection, add a brace at the center of rotation. Even a plane outside that will reinforce it. |
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Registered
Join Date: Nov 2003
Location: South West Florida
Posts: 2,508
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Here are the commercial versions.
![]() There is a gusset welded on the back side of the drop bar on mine. You just can't see it in the pic.
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2000 Boxster S (gone) 1972 911s Targa (sold) 1971 911t coupe roller (sold) 1973 911t coupe / 3.2 (sold) Gruppe B #057 |
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