Answer :
Final answer:
The correct answers are A) diffusion welding and E) roll welding. Diffusion welding and roll welding are the processes classified as fusion welding. Fusion welding melts material at the joint for a continuous bond. These techniques employ heat and pressure to create the weld.
Explanation:
The correct answers are A) diffusion welding and E) roll welding. Fusion welding is a process where material at the joint is melted and allowed to solidify, forming a continuous bond. Diffusion welding involves the application of heat and pressure, allowing atoms to diffuse across the interface and create a bond. Roll welding, a variant of forge welding, uses heat and pressure through rollers to produce a weld.
