Re: jig plate
The aluminum is to absorb heat / minimize warping, right? I'm baffled by the lack of soot on the wood jigs??? How are you keeping them from catching on fire?
I have V-band flanges to weld on for turbine inlet/outlet/wastegate/BOV and 2 more in the exhaust system. what can be done to help keep these flat? |
Re: jig plate
Originally Posted by Captain Bondo
I have a 1" thick by 4" wide by 2' long piece of aluminum that I use for keeping flanges flat.
It has no holes in it. I clamp the flange to it. Clamps work with any flange- if you use the right clamps they also tend to be less "in the way" of where I am trying to weld. The aluminum conducts heat well and means I can do a lot of flange welding without overheating the flange. It also means I'm not dragging a piece of steel that big (it would be much heavier) around the bench as I move things to get at the welds. Also I use stainless flanges- it's minor but all of that contact with carbon steel isn't ideal. My jigs are ------ wooden. Yup. Wood. http://i289.photobucket.com/albums/l...g/DSC01477.jpg I only use them for fitup and tacking and they last a long time. I might get fancy and start making aluminum ones since it's a real breeze to weld with the new welder, but wood seems to work KO. I have made about 15 header off that jig so far. I prefer to fit everything up, then cut the runners off one by one and weld them up, then weld them back on. I always wonder if I had a super rigid jig, and I welded everything up solid under a lot of restraint, there was a possibility of having locked in stresses due to distortion. The wooden jigs acre actualy pretty light and stiff and fast/cheap to make. edit: Here you can see aforemention bigass piece of aluminum, being it very versatile self: http://i289.photobucket.com/albums/l...g/DSC01475.jpg |
Re: jig plate
looks like all sch10 to me ???
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