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Which type of weld is limited by the size and contour of the welding electrodes?

A. Fillet weld
B. Groove weld
C. Resistance spot weld
D. Surfacing weld

Answer :

Final answer:

The type of weld limited by the size and contour of welding electrodes is the Resistance Spot Weld. This welding method utilizes electrodes that dictate the weld's size and shape, making it unique among the options listed. Other weld types, such as fillet and groove welds, are not as restricted by the electrode design.


Explanation:

Understanding Weld Types and Limitations

Welds are crucial in joining metal materials using techniques that often depend on the welding electrode used. Among the options considered in the question, the type of weld that is limited by the size and contour of the welding electrodes is the Resistance Spot Weld.

Welding Types Overview

  • Fillet Weld: Used to join two surfaces at a right angle, but not restricted by the electrode shape.
  • Groove Weld: Requires a joint or groove that the weld metal fits into; the electrode shape has less restriction.
  • Resistance Spot Weld: Involves two metallic surfaces being joined through the application of current, where the size and shape of the electrodes are crucial in determining the size and quality of the weld.
  • Surfacing Weld: Used for surface reinforcement, generally not limited by the electrode.

Resistance spot welding specifically uses electrodes to apply pressure and current, and thus, the physical characteristics of these electrodes directly influence the weld's effectiveness and shape. Therefore, the Resistance Spot Weld is uniquely constrained by the welding electrodes, making it the correct answer to the question.


Learn more about types of welds here:

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