next few weeks at work i'm planning on turning a bunch of steel and aluminum bars (from the scrap heap) into different sized metal shelves using a TIG welderi haven't used the welder in awhile but i planned to be supervised by an expertSo my question is really asking for tips/pointers into putting a metal shelf togetherI understand that steel and aluminum will not combine.The shelves will be used to hold computers and monitors and other necessary equipment for a combustion experiment.Is there a systematic process (for a shelf specifically) into assembling the bars? How will i be able to clamp it down if the bars are going to be different widths and at right angles? Once the frame is built, there may be an option to weld metal boards, how can that be done? When will a tack weld be more useful than a line weld? This is the first time that I will be making metal shelves, so any extra tips beyond the questions posted will benefit me greatly.
