Projection Welding Parameter. Projection welding equipment is easy to adjust to different parameters so it can be used for a wide variety of parts and components. Projection welding has fewer variables that affect the resistance welding process as compared to spot welding.
In most applications one of the workpiece surfaces features multiple small formed projectionsround dimples elongated ridges or rings or the extended corners of weld nuts. The most important variables of this assembly technique are the quality of the projections and the response of the cylinder as the projection collapses during the welding time. While it can be also used to join thinner metal pieces together that tends to be a.
We make the assumption that the weld on the welded nutstud should be stronger than the fastener itself.
Projection Welding 9. When the welding control applies voltage to this valve. One of the main differences between conventional sheet-to-sheet resistance welding and projection welding is that projection welding is a dynamic process involving considerable movement of the upper electrode. The KVA rating of the resistance welding machines for spot seam and projection welding normally varies between 5 to 500 KVA.