What is orbital TIG welding?

Orbital TIG welding systems are designed for joining pipes and tubes in demanding environments, restricted spaces and locations with lack of visibility. Operator has immediate access to monitor, adjust and control welding parameters throughout the welding process.

What is orbital welding equipment?

By definition, orbital welding refers to automated welding of secured tubes or pipes with the electrode rotating (or orbiting) around the tube. It’s a specialised type of welding where the arc rotates 360° around the in-place object (pipe/tube) continuously.

What is orbital welding TIG and how does it work?

Orbital welding is a specialized area of welding whereby the arc is rotated mechanically through 360° (180 degrees in double up welding) around a static workpiece, an object such as a pipe, in a continuous process.

What is orbital welding used for?

Orbital welding is generally applied to tubes rather than pipes and is considered the standard for joining tubes that are used for gas and liquid systems within the semiconductor and pharmaceutical industries.

How much does an orbital welder cost?

Orbital welding became practical for many industries in the early 1980s with the development of portable combination power supply/control systems that operated from 110-V AC….Costs For Operator and Orbital Equipment.

Is orbital welding considered hot work?

Welding, cutting, soldering, and brazing in construction, maintenance, and fabricating activities are considered “hot work” when there is a potential fire hazard present. Many lives have been lost due to explosions caused by vapors contained in tanks or storage vessels that were ignited by a spark or welders’ torch.

What polarity is used for GTAW?

Negative polarity
Negative polarity is recommended for GTAW (TIG welding) because this prevents the tungsten electrode from overheating.

Is AC TIG welding electrode positive or negative?

TIG welding in AC (Figure 2B) allows the electrode positive (EP) portion of the cycle to blast away the aluminum oxide while the electrode negative (EN) portion melts the base metal. A feature called AC balance control allows operators to tailor the EP to EN ratio.

Which polarity is used in TIG welding?

DC- polarity
What is the correct Polarity when TIG welding? Polarity refers to the direction of current flow when welding. All DC TIG welding is done on DC- polarity where the TIG torch is connected to the negative (-) terminal and the earth lead to the positive (+) terminal.

Do you TIG weld stainless on AC or DC?

DC is used for TIG welding Mild Steel/Stainless material and AC would be used for welding Aluminium. The TIG welding process has three options of welding current based upon the type of connection.

What current is used for TIG welding aluminum?

alternating current
When TIG welding aluminium, AC or alternating current is used due to the alternating current having positive and negative cycles. The positive cycle acts as a scrubbing effect on the surface, breaking up oxides that limit weld quality – this is what you see on the pictures of the perfect welds we see around!

What polarity do I use for TIG welding?

For AC TIG welding the polarity is usually* the opposite to DC: the TIG torch is connected to the positive (+) terminal and the earth lead to the negative (-) terminal. *Note: Whilst “torch positive” is the most common polarity for AC/DC TIG welding, some AC/DC TIG machines may require “torch negative”.

How big does an orbital welding tube need to be?

Standard enclosed orbital weld heads are practical for welding tube sizes from 1/16 to 6 inches (1.6 to 162 millimeters) with wall thicknesses of up to 0.154 inch (3.9 millimeters). Large diameters and wall thicknesses can be accommodated with open-style weld heads.

Which is the best Automatic Tube welding machine?

Magnatech LLC offers several automatic tube welding machines that can be tailored to your specific orbital tube welding application: Contractors in many industries rely on Magnatech LLC to provide product solutions for automatic tube welding.

What are some industries that use orbital welding?

Currently, typical industries using orbital welding include aerospace; food, dairy, and beverage; nuclear; offshore; pharmaceutical; and semiconductor. Other applications include boiler tubing and tube and pipe fittings, valves, and regulators.

How to check the quality of orbital welding?

Orbital welding is known for its repeatability and uniformity when producing multiple welds with the same parameters. However, it’s advised that you inspect the external and internal quality of selected welds. Simply cut up some pipes to review the internal quality. Thereafter, adjust the parameters accordingly if necessary. 1.