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Orbital Welding

Blogs about Orbital Welding techniques and best practices.

Jun 06
A pulled t-weld performed by orbital GTAW free of tungsten inclusions and other weld defects

Tungsten Inclusions: Testing, Prevention, and Mitigation

By Engineering Department | Arc Machines, Inc. Orbital Welding, Tungsten No Comments

Tungsten inclusion is a welding defect found in gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding. This welding process uses a non-consumable tungsten electrode to generate an arc—and a tungsten inclusion occurs when some of the material from this electrode is deposited into the molten…

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Jun 01
An exhaust pipe badly damaged by an arc welding heat affected zone

Arc Welding Heat-Affected Zone

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

Welding obviously involves quite a lot of heat, and for every stick, flux-core, MIG, or TIG, there is a corresponding arc welding heat-affected zone on either side of the metal. This is an area where the metal has experienced a change in its material properties due to the high temperatures…

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May 16

GTAW Torch Parts: How Orbital Weldheads Compare

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

The core of gas tungsten arc welding (GTAW) is obviously the tungsten. A great deal of attention is paid to the different tungsten electrode types. Even something as seemingly minor as the tungsten grind angle can have an outsized impact on the final weld. However, the torch which holds the…

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May 16
Nondestructive weld testing using ultrasonic imaging.

Nondestructive Weld Testing

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

The most common way of certifying welds and welders is destructive testing. Perform a weld to specific parameters, clamp it into a hydraulic press, and apply stress until something gives way. If the weld survives past the required stress point before breaking, then it, the materials, the way it was…

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May 11
A range of TIG tungsten sizes

TIG Tungsten Size: How to Choose the Right Electrode

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

Tungsten inert gas (TIG) welding, otherwise known as gas tungsten arc welding (GTAW), is known for producing a clean and precise weld, and tungsten electrodes play a central role in it. From providing excellent thermal conductivity to ensuring precision arc control, using tungsten electrodes adds to the various benefits of…

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May 11
A Pipe and tube network in an industrial facility.

TIG vs. MIG Welding in Pipe and Tube

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

Many crucial industries including oil and gas, biopharma, and food and beverage, rely on the elaborate networks of pipe or tube systems to ensure a continuous supply of material while enduring high temperature and pressure conditions. The demand for high standards from the pipe and tube system means their fabrication…

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May 04

Robotic Welding Arm for Tube to Tubesheet

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

Most industries today are subjected to high standards for productivity and quality. And they are addressing this challenge by embracing robots and their automated advantages. The growing interest can be seen in the latest numbers, which valued the sales of robots at $2.38 billion in 2022.  The welding industry is…

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May 04
An image of a weld head using direct current electrode negative GTAW polarity to weld pipe

GTAW Polarity: An Introduction

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

Electrical currents are a fundamental part of arc welding, and polarity is an inescapable part of electricity. Polarity is simply the aspect of having two diametrically opposed poles, and in electrical terms, polarity is the direction of current flow in the circuit between these opposed poles. In direct current (DC),…

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Apr 27

Chill Blocks for Welding

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments
Chill blocks for welding are additional pieces of metal that are placed onto a workpiece that absorb a significant portion of the heat that is input into the metal during...
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Apr 25
A picture of chromoly steel tubes.

TIG Welding Chromoly Tube: Best Practices

By Engineering Department | Arc Machines, Inc. Orbital Welding No Comments

A picture of chromoly steel tubes.

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  • Products
  • Services & Leasing
  • Applications
    • Narrow Groove
      • Narrow Groove Welding
      • Narrow Gap Welding
    • Tungsten
      • Polished Tungsten
      • Narrow Groove Tungsten
    • Tube to Tubesheet
      • Tube and Tubesheet
      • Tube to Tubesheet Thickness
      • Tube to Tubesheet Joint Types
    • Automation
      • Orbital Cobots
      • Automated Manufacturing
      • Robotic TIG
    • Cladding
      • ID and ED Cladding
    • Ship Welding
    • Pharmaceuticals
      • Food Grade Stainless
      • Pharmaceutical Welding
      • Stainless Steel Vessels
    • Pressure Vessels
      • Pressure Vessel Nozzles
    • Orbital Welding
      • Automatic Welding
    • Titanium
    • Nickel Alloys
    • Pipe Welding
    • Stainless Steel
    • Gas Condensers
  • Industries Served
  • Resources
    • AMI
      • AMI Quality
      • Orbital Equipment
    • Orbital Welding
      • History and Use of Orbital Welding
      • Orbital Welding System
      • Orbital Welding Guide
      • Online Orbital Welding Training
      • Weld Head Clearance
      • Open Weld Heads
      • Closed Weld Heads
      • Reducing Hazards
      • Custom Solutions
      • What the Semiconductor Automotive Shortage Means for Today’s Industry
    • Aviation
      • Aviation
    • Ships
      • Shipbuilding
    • Automation
      • Automated GTAW
      • Manufacturing 4.0
    • Nuclear
      • Nuclear Storage
      • Nuclear Welding: Meeting and Exceeding Critical Industry Standards
  • Support
  • ABOUT US
  • CONTACT US
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