Question

match each welding variable to the correct letter in the diagram.

contact tip-to-work distance
electrode extension
stickout
contact tip setback
standoff distance

Explanation:

Identify the components of the welding torch nozzle

Using the GMAW Gun Anatomy knowledge point, we identify the physical parts labeled at the top of the diagram:

• A represents the gas nozzle (or cup).
• B represents the contact tip inside the nozzle.

Analyze the dimensional variables on the left diagram

• C is the distance from the end of the gas nozzle to the end of the contact tip. Since the contact tip is recessed inside the nozzle, this represents the Contact tip setback.
• D is the distance from the end of the contact tip to the end of the electrode wire. This is defined as the Electrode extension (also commonly referred to as Stickout).
• E is the distance from the end of the gas nozzle to the work surface. This is defined as the Standoff distance.

Analyze the dimensional variables on the right diagram

• F is the distance that the contact tip extends past the gas nozzle (protrusion).
• G is the distance from the end of the contact tip to the work surface. This is defined as the Contact tip-to-work distance (CTWD).
• H is the distance from the end of the gas nozzle to the work surface, which is the Standoff distance (equivalent to E in the left diagram).

Match variables to the requested terms

By comparing standard welding terminology definitions with the labeled dimensions:

• Contact tip-to-work distance: This is the distance from the contact tip to the work piece, represented by G.
• Electrode extension: This is the length of electrode extending beyond the contact tip, represented by D.
• Stickout: This is another term for electrode extension, represented by D.
• Contact tip setback: This is the distance the contact tip is recessed inside the nozzle, represented by C.
• Standoff distance: This is the distance from the nozzle to the work piece, represented by E (or H).

Answer:

Match each welding variable to the correct letter in the diagram.

• Contact tip-to-work distance: <blank>G</blank>
• Electrode extension: <blank>D</blank>
• Stickout: <blank>D</blank>
• Contact tip setback: <blank>C</blank>
• Standoff distance: <blank>E</blank>