In welding, what does the term "filler metal" refer to?

In welding, what does the term "filler metal" refer to?

• A. The main structural component of the weld
• B. The protective coating used in welding
• C. The metal added to fill the joint between base metals
• D. The gas used to shield the weld pool

Answer: (C)

The term "filler metal" refers specifically to the material that is added during the welding process to fill the joint between base metals. This metal is typically melted along with the base metals to create a strong bond as it solidifies. The role of filler metal is crucial because it not only helps complete the joint but also contributes to the strength and integrity of the weld. In many welding processes, the filler metal can be composed of different alloys, depending on the desired properties of the weld. For instance, certain filler metals may be chosen for their compatibility with the base materials or to achieve specific mechanical properties in the finished weld. The choice of filler metal is an important consideration in welding applications to ensure optimal performance and durability of the welded joint.

The term "filler metal" refers specifically to the material that is added during the welding process to fill the joint between base metals. This metal is typically melted along with the base metals to create a strong bond as it solidifies. The role of filler metal is crucial because it not only helps complete the joint but also contributes to the strength and integrity of the weld.

In many welding processes, the filler metal can be composed of different alloys, depending on the desired properties of the weld. For instance, certain filler metals may be chosen for their compatibility with the base materials or to achieve specific mechanical properties in the finished weld. The choice of filler metal is an important consideration in welding applications to ensure optimal performance and durability of the welded joint.