What is the definition of "weld pool"?
The pool of molten metal that is created by the heat of the welding torch.

Learn more about weld pool in the class Oxyfuel Welding Applications 207 below.

Welding Training

Class Information
Welding Training Tooling U-SME classes are offered at the beginner, intermediate, and advanced levels. The typical class consists of 12 to 25 lessons and will take approximately one hour to complete.
Class Name:Oxyfuel Welding Applications 207
Description:This class describes the procedures for use and maintenance of an oxyfuel welding outfit.
Number of Lessons:17
Language:English, Spanish
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Class Outline
  • Objectives
  • Oxyfuel Welding
  • Oxyfuel Equipment
  • Assembling Oxyfuel Equipment
  • Inspecting the Welding Outfit
  • Lighting the Torch
  • Shutting Off the Torch
  • The Welding Flame
  • Effects of Flames
  • Holding the Torch
  • Forehand Welding
  • Backhand Welding
  • Continuous Weld Pools
  • Using a Welding Rod
  • Using a Welding Rod with Thicker Metals
  • The Basic Skills of Oxyfuel Welding
  • Summary
Class Objectives
  • Describe oxyfuel welding.
  • Describe the equipment used in oxyfuel welding.
  • Explain how to assemble an oxyfuel outfit.
  • Describe how to inspect an oxyfuel outfit.
  • Explain how to light the oxyfuel torch.
  • Explain how to shut off the torch.
  • Identify the different welding flames.
  • Explain the effects of different flame types.
  • Explain how to hold an oxyfuel torch.
  • Describe forehand welding.
  • Describe backhand welding.
  • Explain how to use a continuous welding pool.
  • Describe how to use a welding rod.
  • Explain how to use a welding rod with thicker metals.
  • List the basic skills of oxyfuel welding.

Class Vocabulary

Vocabulary TermDefinition
backhand welding A method of welding during which the torch is moved ahead of the welding rod. Backhand welding can be used in more situations than forehand welding, but is more complicated to learn.
carburizing flame A flame that contains more acetylene than oxygen. This flame will burn at a lower temperature than the other flames, and can add extra carbon to certain welds.
continuous weld pool The pool of molten metal under the tip of the welding torch as it is moved by the torch over the length of the weld.
correct working pressure The proper pressure for the gases used in oxyfuel welding, as specified by the manufacturer and safety practices. For example, the correct working pressure for acetylene must always be below 15 psi.
cylinder The metal containers used to store the gases used in oxyfuel welding. Cylinders are built specifically for each gas, and have different properties depending on the gas.
filler metals Also known as welding rods. Metal added to a welding, brazing, or soldering process to ensure better fusion.
flashback A torch malfunction in which the flame briefly or continually moves up into the torch and hoses. If a flame reaches the hoses, an explosion can occur.
flashback arrestor A part of the oxyfuel outfit installed between the hose and the torch. A flashback arrestor prevents flashback from reaching into the hoses and causing an explosion.
forehand welding A method of welding during which the welding rod is moved ahead of the torch. This method is best suited for thinner steel.
groove weld A weld used to join two edges in a butt joint using a filler metal
neutral flame A flame with a balanced proportion of oxygen and acetylene. This flame burns at around 5589° F and is the most commonly used flame for oxyfuel welding.
nonpetroleum soap Soap that does not contain any petroleum or petroleum based products. Petroleum is flammable, causing safety hazards if used in a welding environment.
overhand grip A method of holding a welding torch similar to a hammer. The overhand grip offers more stability than an underhand grip, but the torch becomes less maneuverable.
oxidizing flame A flame that contains more oxygen than acetylene. Oxidizing flames are rarely used due to how the additional oxygen in the flame can lead to the formation of various oxides.
regulator The device used to control the amount of gas that flows from a cylinder during a weld. A regulator consists of a valve to control pressure and a gauge to measure the pressure flowing through it.
torch body Also known as the torch handle. The handheld part of the torch that may contain the mixing chamber.
travel angle The angle of the torch tip to the surface of the workpiece, as measured from the the side of the weld.
underhand grip A way of holding a welding torch by gripping it between the thumb, forefinger, and middle finger, similar to a pen. This holding method allows for more careful control of the torch, but is not as easy to use as the overhand grip.
weld pool The pool of molten metal that is created by the heat of the welding torch.
welding tip The end of the torch, where the mixed gases are directed into the flame. Welding tips are made of copper and can be cleaned using a special tip cleaner.
work angle The angle of the torch tip to the surface of the workpiece, as measured from the end of the weld.