Final answer:
Option(A) The parts of a typical fusion welded joint are the base metal, filler metal, and heat-affected zone.
Step-by-step explanation:
In a typical fusion welded joint, the parts involved are the base metal, filler metal, and heat-affected zone.
The base metal refers to the metal pieces being joined together. The filler metal is a separate metal that is added to the joint to help strengthen it. The heat-affected zone is the area of the base metal that undergoes changes in its microstructure and properties due to the heat from the welding process.
A fusion-welded joint is a type of joint created by melting and fusing the materials of two or more components to form a strong, cohesive connection. This welding process involves the application of heat, often with the addition of a filler material, to melt and fuse the base metals. Fusion welding methods include techniques like arc welding, gas welding, and laser welding. The resultant joint is typically robust and exhibits metallurgical continuity, making it widely used in various industries, including construction, manufacturing, and aerospace.