Answer :
Final answer:
The main difference is that fusion welding melts the base materials, whereas solid-state welding joins them through heat and pressure without melting. The correct answer to the question is A.
Explanation:
The difference between fusion welding and solid-state welding is as follows:
- A. Fusion welding involves melting the base materials, while solid-state welding does not.
- B. Solid-state welding involves melting the base materials, while fusion welding does not.
- C. Both fusion welding and solid-state welding involve melting the base materials.
- D. Fusion welding and solid-state welding are two terms for the same welding process.
The correct answer is A. Fusion welding is a process where the base materials are melted to create a weld. This can be accomplished by various sources of heat such as gas, electricity, or laser. In contrast, solid-state welding, such as forge welding, does not involve the melting of the base materials. Instead, the materials are joined through heat and pressure without reaching their melting points.
