What is a TIG Cup?

What is a TIG Cup?

TIG/GTAW gas nozzles (also called TIG cups) are available in a wide variety of materials, shapes and sizes depending on your TIG torch and welding application. The gas outlet or orifice of a TIG nozzle is measured in 1/16” (1.6mm) increments.

Why are TIG cups pink?

The most common TIG cups are made of Alumina Oxide and are “pink” in color. Alumina is a high- temperature, nonconductive pink ceramic material. This material is injection-molded and mass-produced, which is why the alumina nozzles are less expensive than those made with other materials.

How do I choose a cup size for TIG welding?

We need a lot less flow in tig welding. A flow of 15 to 25 cfh will cover most applications. Very large cup sizes will require more flow, but for the apprentice using about 20 cfh is sufficient.

Do you TIG weld stainless on AC or DC?

Direct current TIG (DC) welding is when the current flows in one direction only. DC is used for TIG welding Mild Steel/Stainless material and AC would be used for welding Aluminium.

What Tungsten is used for welding on a C?

Ceriated Tungsten

How far should your Tungsten stick out?

Again the rule of thumb is whatever the opening is, that’s about how far you stick your tungsten out. And I keep saying about, you know? We can stick this out a little bit further than it is. We can go out a little past half, 5/8 of an inch and we’ll be fine.

Why does my Tungsten burn up?

TIG electrodes melt due to a variety of reasons, the most common are: diameter of the electrode too small for set current, the polarity of the torch is clamped electrode positive, welding with DC instead of AC or the electrode material is not suitable for the welding setup.

Why is my Tungsten turning black?

If the tungsten electrode turns from its normal color of light gray to a shade of purple or black, that is an indication to increase post-flow time even more. In addition to causing various weld puddle troubles, contaminated tungsten electrode is also the leading cause of an unstable arc.

Why does my Tungsten ball up?

The reason why the tungsten balls up is because of your machine’s frequency setting. Without going too much into it, frequency is the amount of times the alternating current goes from positive to negative and back in one second, and is measured in “hertz” (Hz). Your machine, since it’s a transformer, uses 60 Hz.

What is purple tip tungsten for?

This rare earth tungsten offers excellent ignition characteristics and consistent welding properties. They are universal and suitable for all applications in the whole range of AC and DC welding of non-alloyed and high-alloyed steel, aluminium, titanium, nickel, copper and magnesium alloys.

Why do my TIG welds look dirty?

1. Poor gas coverage leads to contamination. The weld here shows contamination caused by lack of shielding gas, which can happen when the shielding gas is not turned on, there is either too little or too much gas shielding, or the gas is blown away.

What causes pinholes in TIG welds?

Paint, oil, grease, and rust can all cause pinholes to form in the weld bead. This is particularly important in TIG welding. The electrode and rods used for TIG welding don’t have any flux to clean a weld or handle impurities. You must get everything clean before you crack an arc.

Why are my stainless TIG welds dark?

Response from weldingtipsandtricks.com on stainless steel welds. Discoloration is oxidation. It is just a matter of the argon shielding envelope leaving the hot metal before it has a chance to cool enough to not oxidize. Stainless has a tendency to bond really well with low heat as long as it is clean.

Why are my TIG welds black?

Brown or black oxidation or flakes in the weld puddle can be eliminated with increased EP. Too much EP, conversely, balls the tungsten and causes excessive etching. – Only start welding once the puddle has a shiny appearance. This is how you know the oxide is removed and you are ready to add filler metal.

Why are my MIG welds black?

A: The black soot actually is magnesium oxide. When magnesium is vaporized by the arc’s heat and comes in contact with oxides, black soot forms. A proper gun push angle of approximately 15 degrees helps keep gas coverage at the leading edge of the weld pool, which reduces soot.

Can you MIG with 100 Argon?

In summary, it is possible to stick steel together using a MIG welder with 100% Argon shielding gas. If you need a strong, quality weld, 100% Argon is NOT a good choice for MIG welding steel. These problems are even more pronounced with stainless steel, and using pure Argon to MIG weld stainless never recommended.

How long will a 80 CF argon tank last?

around 3 to 4 hours

What size argon tank should I buy?

You’ll find them smaller and larger, but most homeowner and hobby welders choose Argon or MIG mixes in gas cylinders with volumes of 40, 80 or 125 cf (cubic feet). The larger of these cylinders provide plenty of welding time while remaining portable and easy to transport.

How big is a 40 cubic foot tank?

The cylinder is a 3000 psi (200 bars) service pressure tank measuring 24.8″ (63 cm) tall, with a 5.3″ (13.46 cm) diameter. The cylinder weighs 14.9 lbs. (6.76 kg) is negative 0.7 lbs. (317.5 g) when full in salt water and is positively buoyant 2.4 lbs.

How much is a tank of welding gas?

Recommended Argon/CO2 Tank Sizes for MIG

Product	Price
40 cu/ft 75% Argon 25% CO2 Welding Gas Cylinder Tank CGA 580 – FULL	$235.99
80 cu/ft 75% Argon 25% CO2 Welding Gas Cylinder Tank CGA 580 – FULL	$315.99
125 cu/ft 75% Argon 25% CO2 Welding Gas Cylinder Tank CGA 580 – FULL	$365.99

How much does 75 25 welding gas cost?

15 Item(s)

Gas type	Cylinder size	As Low As
Carbon Dioxide	10 lb	$19.00
Mig gas 75/25 mix (AR/CO2)	55	$33.00
Mig gas 75/25 mix (AR/CO2)	Q	$38.00
Mig gas 75/25 mix (AR/CO2)	M	$46.00

Does Tractor Supply fill welding tanks?

Purchase welding gas cylinders, or exchange your empty cylinder for a refill of acetylene, oxygen, or shielding gas in a variety of sizes. Just visit your local Tractor Supply Co. store to find out more about the welding gas cylinder exchange.

How tall is a 80 CF argon tank?

Size/Name	Cubic Ft	Height
80	92 cf	33”
125	125 cf	43”
150	155 cf	46”
250	251 cf	51”