This page is all about walking the cup on 3 pipe. The pipe is 3 carbon steel schedule 40 and the flange is stainless steel. I like to freehand the root pass using a tig finger because i use a forward and back technique a lot.
But after the root pass, cup walking is often the best and quickest. Today walking the cup tig welding #welding #tigwelding #asmr Walking the cup is the first thing we teach our tig students.
Wrapping your head around wh. On this weeks video we are returning to the basics of tig welding. As we continue our series on tig welding technique, we look at the how to walk the cup.
Walking the cup is often misused, because welders want to achieve the. There exists no free and universal guideline for choosing tig welding cups. Different cup sizes are typically used for different types of metals, thicknesses, and applications.
For tig welding, common choices include #4 (1/4″), #5 (5/16″), #6 (3/8″), #7 (1/16″) and #8 (1/2″). To choose the best cup size for a particular welding. Tig root and hot pass 6 inch sch 80 6g pipe steel walking the cup tig root pass pushed in after hot pass proper tig weld open root weld penetration common problems with open root tig welds.
When it comes to open root tig welds there are some common problems but all of them are easy to fix. Tig welding is a very forgiving process! Walking the cup is a welding technique used by tig welders.
It involves oscillating the arc on the tungsten by keeping the nozzle of the gtaw torch against the work with just enough pressure to let the torch advance forward over the filler wire. Basically, walking the cup is when a welder places the cup of their torch against their material. This video is all about walking the cup on 3 stainless flange welded to a carbon steel pipe. walking the cup is a very nice skill to have, but it's also good.
Cup size for socket welds. You could definitely make this weld with a single cup size but i find that having several choices works better. A #6 for the root works well.
After the root, it works better if the cup is large enough not to scrub on the deposited weld. For this weld a #6 seemed to work fine for both root pass and second pass. Practice walking the cup.
Looking for a way to practice walking the cup without a torch. I sit at a desk at lot during the day at my regular job. I would swear i saw on this forum or youtube or somewhere where a person practiced walking the cup with a pencil and paper.
Tig cups are sized by 1/16 of an inch of the inside diameter of a cup. So a #4 cup is 4/16. a #12 cup is 12/16 and so on. In order to walk the cup, the size of the cup is selected based on the depth of the groove, angle of the groove, or size of the weld deposit.
For fillet welds, the cup should be large enough so that. Walking the cup is a tig welding technique. The walking the cup technique primarily used for pipe welding but there are definitely a few other applications where being able to walk the cup can make for a better looking weld.
When you walk the cup, there are basically 2 variations. When the cup is rested inside a groove or the 2 sides of a tee. Refer to the chart above to get an estimated argon flow rate for tig welding.
That will set you in the right direction. Tig welding stainless flange to a pipe. It’s a perfect joint.
The tig cup just slides back and forth with no hiccups and the final weld looks like a machine welded it. I like to freehand with the tig torch most of the time. But for a joint like this one…
For cup walking, most dc constant current power supply provides the desired results, but the more geared for gtaw welding the machine is, the better performance an operator will achieve. There are two ways to walk the cup. The first is wobbling the cup side to side like a heavy barrel being wobbled across a floor.
The second way is to ratchet the tig torch handle like you are tightening a bolt. The end result between both ways is almost the same. A very uniform and consistent weld pattern!
Walking the cup is a tig welding technique commonly used by pipe welders. If you are looking for a pipe welding job, this technique should be known to you by heart. Being such an easy welding technique, walking the cup has been accepted by welders around the world and is considered the best technique to get started with pipe welding.
