How To Weld A Sheet Metal Box

The box i have my students create in class ends up being 5 5 x 2 x 3 5.

How to weld a sheet metal box.

To make things easy for my students i designed our classroom box so it would be able to work on the size of a standard 8 5 x 11 piece of paper. Making a patch panel take some time to make your patch a perfect fit. Best deal on goodyear air hose check this out https amzn to 3b5cjvy. Butt welded panels withstand stress better than any other type of weld joint.

Step 2 use the cutting torch to cut out each panel and then grind the edges smooth with the hand held grinder. I applied a thin layer of lacquer to finish the box but this is optional. Clean the box with a paper towel and some acetone. Lay the bottom on the ground and weld the two ends on first.

Tig welding sheet metal forget the larger 1 8 inch tungsten electrode and use a smaller one. Place the sander orthogonal to each surface do not polish directly onto the corner because it will weaken the weld. First i create a gap and groove weld to close things up and then a fillet weld to reflect what i really want it to look like. Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal.

You ll have better access from the outside but a much more difficiult weld. Take the sander and carefully polish the weld. Then finsih the joint from the inside so your gtaw tip can cross from one side to the other. Hi guys say i want to make a simple sheet metal box preferably with the top edges.

Clamp the folded corner into a jog or fixture tightly to hold the corner square and pretty then try to tack first weld from the inside at at least two locations. The patterns for a cardboard box will look very similar to what you need to plan out for the sheet metal box.