In order to practice Tig welding, it is recommended to use 2 to 3mm thick solders. With a large thickness, the welded material will have a larger weld pool and is easier to control than thin welds, which makes it easier for the worker to learn and develop skills than wrestling. With flammable thin plates.
In this manual welding power uses a 2 mm thick solder, the welding current is set to 50A, the tungsten electrode (solder needle) and the offset rod are 1.6mm in diameter. Workers can slightly change the current to match their torpedo travel speed.
When performing TIG welding, the worker must have the ability to control the distance from the solder to the solder so that the arc is stable.
On the picture is the position of the welder when soldering TIG, note: this operator left hand should hold the left beak, if you turn right or reverse position.
When the operation needs to sit comfortably, two hands so naturally should not fall into the welding table, the welding solder edge is wound around the operator to easily control the welding torch.
The tip of the welder is tilted to one side to easily see the welding puddle, the red arrow indicates the direction of welding, the red dot at the end indicates the point the operator needs to observe. Looking at this red dot will see the operation of the puddle and the dot of the stick.
TIG welding operation
The video shows the angle of the electrode, how the torch is moved, and how to add a stick to the weld. TIG welding process is quite meticulous, the welding torch is even and stopped slightly when adding the secondary metal.
The welding torch is tilted about 20 degrees from the vertical and tilted in such a way that the solder tip is tilted in the direction of welding. The angle between the mine and the compensator is usually 90 degrees.
The distance between soldering pins and solders is one or five times the welding needle diameter. Here, due to the use of needle diameter 1.6, the distance between the needle and solder is about 2mm.
You should practice with a pre-arc welding nozzle to fix the welding line and try to maintain the welding torch angle, around the center of the solder and solder, and then work with the arc.
Practice TIG welding with arc
Start by causing arc, you can feel the melting of the welding pool. There are many TIG machines that have pulse-induced pulse-induced oscillation, and the operator simply needs to place the weld needle about 1mm from the weld and then press the arc. For stainless steel welding machine price without pulse-induced welding, the welding needle should be lightly touched on the weld and press the button and the welded needle and arc should be touched.
Next is the welding with a nozzle (no filler) to clearly see the flow of molten solder and maintain the arc length accurately, stable. Then practice with stick, referring to the video below.
With a 1.6mm rod, adding extra metal to the puddle can be more difficult with 1.0mm rods.
Watch the video above we have some comments:
The distance between the electrodes and the solder is about 2mm, and the worker estimates the distance by touching the weld and pulling the weld bead into a space, then turning on the weld switch. Frequency to arc arc)
After the arc annealing is fixed for a few seconds to make the molten solder pile, the size of the puddle will determine the width of the weld later. Large hot melt lead to wide width and large rice husk, whereas small puddle is smaller and breadth.
You can see the tip of the soldering needle reflected in the welding puddle. The arc length can be judged by the distance between the soldering tip and its shape in the welding pile. Once skilled, the worker can determine the length of the arc through its width and height.
When adding a non-stick rod to the center of the welded wire, it will cause the stick to melt and clump over the weld, just pointing the rod at the edge of the weld pail (the molten metal in the melt will melt. string bean). The auxiliary weld will cool the weld part somewhat.
Compensators should always be placed near the torch (within the protection of inert gases) to avoid being cooled and oxidized.
At the end of the welding line, the torch needs to back up a bit then turn off the welding switch (or release the switch). Hold the groin at that position until the gas runs out. This gas has the function of protecting welding needles and molten welds.
In order to have good quality TIG welding, you have to pay attention to a lot of things so you should split and practice each skill so that it will be effective and progress faster.
Initially practice the arc length maintenance by manipulating the arcless arc welding, at which point you only need to pay attention to moving the torch at a stable speed and keeping the distance between the needles constant. Welding and welding. Once you have mastered this skill, practice with the arc and keep the size of the weld pool stable. Last but not least, use a stick, learn how to put rods, hold rods and dots in the puddle … (refer to the video tutorial).