Why is my Tungsten turning yellow?

Issue 4: Yellow Powder or Smoke on Cup—Tungsten Discolor Shielding gas flow rate too low. Gas flow should typically be set at 15 to 20 cfh. Incorrect shielding gas or mixture. Use argon gas.

What causes sparks when TIG welding?

Tig welding galvanized, or some bronzes that have zinc in them, will result in sparks and sputters, porosity in the weld, and nasty white smoke that makes you sick. Tig welding with gas welding filler rod will also sometimes make sparks. Just plain dirt, oil, or mill scale shouldnt spark.

What should a TIG arc look like?

How does TIG welding work? The arc is shaped like a cone, with the tip at the electrode and the base on the metal being welded. The closer the electrode is held to the metal, the smaller the base of the cone — but as you pull the electrode farther away, the base (and puddle) gets larger.

What makes TIG welding on brass so difficult?

TIG welding brass is a complicated process—many say it cannot be done. What makes TIG welding on brass so difficult? Brass is a difficult metal to weld because it contains zinc. This metal tends to have a low melting point, which affects the way you work with and weld the material. When the zinc boils, it will often jump onto your electrode.

Is it possible to make a colorful TIG weld?

Colorful TIG welding has become increasingly popular in many niches of welding. Many welders on social media have gained a following with their beautiful colored TIG welding work. It can bring some really cool stylistic elements to your work or to passion projects. In this section, we will detail how colorful welds work and how you can create them.

What kind of copper is used in TIG welding?

And some Tig weld like a dream, and some are a big pain. The trick to weldability is to have no lead, and minimum zinc. So standard C360 Free Machining Brass, which is the most common yellow brass, has a breakdown of 61.5% copper, 3% lead,and 35.5% zinc.

What kind of joints can TIG welding be used for?

TIG welding is mostly used for critical weld joints, welding metals other than common steel, and where precise, small welds are needed. Perfect example of a stainless steel TIG weld on thin wall pipe. Knowing alternative names and abbreviations for TIG welding is important for anyone who is interested in getting a job as a TIG welder.