Sheet Metal Spot Welding Process

The molten materials quickly cool and the two metals are permanently bonded.

Sheet metal spot welding process.

I like to try and center the weld in the flange or weld seam. Darkmoon metals is a home based business start up i have dec. Projection welding is a versatile process for joining wire sheet machined formed parts in steel such as wire mesh attachment of brackets etc in sheet metal assembly and welded nuts and bolts. Spot welding also known as resistance spot welding is a resistance welding process.

The spot welding process is one of the oldest welding methods used. The ration of thickness should not exceed 3 1mm. You can than take a drill or a metal punch to make holes in the top layer of the metal. Spot welding is primarily used for joining parts that normally upto 3 mm 0 125 in thickness.

Short bursts or tacks will help. Don t forget to mark the panel before disassembling the seam so it all fits back together correctly. Its primary usage is in welding auto body and sheet metal. Spot welding is a type of electric resistance welding used to weld various sheet metal products through a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current.

Jeff explains spot welding and gives a short demo welding stainless steel sheet. Start by marking out even spacing of where you want your spot or plug welds on the metal. Below we show you the process for making a spot weld with your mig welder. Spot weld diameters range from 3 mm to 12 5 mm 0 125 to 0 5 in in diameter.

To most manufacturers spot welding is the most economical way to join two pieces of sheet metal. While joining sheet metal is the most common use for the process resistance welding rw equipment actually can be used for a large variety of joining and heat treating projects some of which are not so well known. With the holes punched or drilled you can clamp the panel back together. This welding process is used primarily for welding two or more metal sheets together by applying pressure and heat from an electric current to the weld area.

For sheet metal i use ine welding wire and it is just as good as their flux cored wire if you want you can grab one here. It works by contacting copper alloy electrodes to the sheet surfaces whereby pressure and electric current are applied and heat is generated by the passage of current through resistive materials such as low carbon steels. Work pieces are held together under pressure exerted by electrodes. Spot welding is usually used to join a panel of overlapping sheet metal parts that are usually 3mm thick.

Spot welding and seam welding are two very popular methods used for sheet metal parts. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to simultaneously clamp the sheets together.