N3RB Posted March 17, 2008 Share Posted March 17, 2008 Well, this is my first project it took me a lazy two weeks, its adjustable with the nuts on one end, tell me what you think. The reason I made it a bolt on besides welding it is because my car is a DD. I just hope it doesn't break... lol I'll post more pics after I paint it. Quote Link to comment Share on other sites More sharing options...
OlderThanMe Posted March 18, 2008 Share Posted March 18, 2008 I hope you are willing to accept a little advice after a few questions... What model of MIG welder are you using? What size wire? What voltage? It looks good for a beginning welder like yourself. You probably want to slow down by lowering the voltage and wire size for a little while. Practice getting a weld that has smooth sides and doesn't look like a row of tack welds. On the round bar you should be able to put down 5-6 short welds instead of tacks to go completely around the tube (or have someone that you trust rotate the tube while you weld). A row of tack welds won't have the amount of penetration to hold very hard. I think it will hold. The welds look as if they have wetted out decently enough. Just practice face, leg, and toe consistancy with your welds. Side view of your weld: l_ l_ those are the legs. that is the face. the two points where the legs and face meet are the toes. Where the two legs meet is the root. It is common to have the toes cut into the base metal. That just means your ground is in a bad spot or you are angling the MIG gun too far to one side. It takes some time to not do but your welds look good as far as that goes. It does look as if you are running the machine a little hot from the amount of spatter that you have. Try turning your voltage down a little bit. A good practice is to weld a T joint out of some scrap steel (on one side) and then see if you can bash the "T" flat with a "Big Fat Hammer" without the weld or base metal breaking. Looks good and may you have many years of good welding ahead of you! Quote Link to comment Share on other sites More sharing options...
N3RB Posted March 18, 2008 Author Share Posted March 18, 2008 thanks for the advice, i have no clue what size voltage or settings, my welding class has it preset, i guess thats a bad thing. But the bar works, and no rattle =) im thinking to do a front one now. Quote Link to comment Share on other sites More sharing options...
OlderThanMe Posted March 18, 2008 Share Posted March 18, 2008 Well if you are in a welding class then they have it preset to make life easier on you. We were told to read the book and then go setup/play with the machines until we figured it out after we had practiced the technique as a group. LOL www.Millerwelds.com has a cool calculator where you can plug in what wire you are using, what metal, etc... and it will tell you what setting range to use. Quote Link to comment Share on other sites More sharing options...
N3RB Posted March 18, 2008 Author Share Posted March 18, 2008 thats awesome thanks. Quote Link to comment Share on other sites More sharing options...
Challenger Posted March 18, 2008 Share Posted March 18, 2008 I like the design. What parts did you use for the connections? How did you neck down the larger tubing? Did you make it on a lathe? Quote Link to comment Share on other sites More sharing options...
N3RB Posted March 18, 2008 Author Share Posted March 18, 2008 I like the design. What parts did you use for the connections? How did you neck down the larger tubing? Did you make it on a lathe? The parts I used were 1/8" mild steel for the mounting brackets, 1/4" for the pin bracket, 1" gas pipe, and two tractor pins. Nothing was made on a lathe, I sandblasted the mild steel after i welded everything. The cool thing about the whole process is that the only thing I had to fit up was the mounting bracket on the three bolts. Quote Link to comment Share on other sites More sharing options...
Jeremy82zx Posted March 19, 2008 Share Posted March 19, 2008 your welds are fine. Our shop teacher has been welding for 40+ years, and his welds look similar to yours. like a row of tacks. his is more consistant but i wouldnt change a thing your welds look good! your tubing welds need some practice though Quote Link to comment Share on other sites More sharing options...
N3RB Posted March 19, 2008 Author Share Posted March 19, 2008 your welds are fine. Our shop teacher has been welding for 40+ years, and his welds look similar to yours. like a row of tacks. his is more consistant but i wouldnt change a thing your welds look good! your tubing welds need some practice though thanks, lol, that was the first time to do a tubing weld. i just grinded off the welds today and im gonna paint it soon. Quote Link to comment Share on other sites More sharing options...
Jeremy82zx Posted March 21, 2008 Share Posted March 21, 2008 thanks, lol, that was the first time to do a tubing weld. i just grinded off the welds today and im gonna paint it soon. yup, i just wish our shop at school didnt have a no cars policy. it is a very large shop with 9 welders. instead im building an inclosed trailer Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted March 21, 2008 Share Posted March 21, 2008 yup, i just wish our shop at school didnt have a no cars policy. it is a very large shop with 9 welders. instead im building an inclosed trailer Thats common, my local welder won't weld anything on a car due to insurance regs. Have fun with the trailer. Quote Link to comment Share on other sites More sharing options...
N3RB Posted March 22, 2008 Author Share Posted March 22, 2008 yup, i just wish our shop at school didnt have a no cars policy. it is a very large shop with 9 welders. instead im building an inclosed trailer ya my teacher is really chill, our shop is massive. it has at least 30 stick welders and.... 9 MIG Quote Link to comment Share on other sites More sharing options...
MoNkEyT88 Posted March 22, 2008 Share Posted March 22, 2008 If I were you I would grind it down flush with the tubing. Those welds should be stronger than the tubing if you were using the right wire and gas. I like TIG welding for small stuff like that. If you have one at your school try it out. I was working on this for my STI. Quote Link to comment Share on other sites More sharing options...
N3RB Posted March 23, 2008 Author Share Posted March 23, 2008 If I were you I would grind it down flush with the tubing. Those welds should be stronger than the tubing if you were using the right wire and gas. I like TIG welding for small stuff like that. If you have one at your school try it out. I was working on this for my STI. thats cool man, but how did you cut the pipe and at exactly the right angle to get those bends correct? Quote Link to comment Share on other sites More sharing options...
Jeremy82zx Posted March 24, 2008 Share Posted March 24, 2008 ya my teacher is really chill, our shop is massive. it has at least 30 stick welders and.... 9 MIG geeze, well our shop has 3 stick and 6 mig, not bad for a highschool of around 60 people. I actually like arc better than mig when i have to make really strong welds. I think mig is harder than arc for that stuff Quote Link to comment Share on other sites More sharing options...
Wedge Posted March 26, 2008 Share Posted March 26, 2008 Great work on the bar but grind those welds a little to make it cleaner . BTW Monkey i love TIG welds they look so good . Quote Link to comment Share on other sites More sharing options...
MoNkEyT88 Posted March 27, 2008 Share Posted March 27, 2008 thats cool man, but how did you cut the pipe and at exactly the right angle to get those bends correct? Here is the formula for segmented bends. CLR = Center Line Radius (radius of the bend measured through the center of the tubing) D = Diameter of Tube _____ L = Length of long side of pie cut - the top of this pie cut -> ____/ Angle = angle to cut pie section which, this angle is measured perpendicular to the length of the tubing Bend Angle = The angle of the bend N = number of pie sections to complete bend * means multiply L = [ ( 2 * CLR ) + D ] * [ sin ( Angle ) ] Angle = Bend Angle / ( 2 * N ) Quote Link to comment Share on other sites More sharing options...
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