What process fuses metals together using high heat?

What process fuses metals together using high heat?

• A. Forging
• B. Casting
• C. Welding
• D. Soldering

Answer: (C)

Fusing metals together relies on melting the joining surfaces so they flow and solidify as one piece. Welding achieves this by applying enough heat to melt the base metals (and sometimes adding filler metal) so the molten regions mix and then cool to form a strong joint. It’s different from forging, which shapes metal through deformation without necessarily melting it; casting, which forms a single piece by pouring molten metal into a mold; and soldering, which bonds pieces at far lower temperatures with a filler metal without melting the workpieces themselves. Welding is the process that uses high heat to fuse the metals directly.

Fusing metals together relies on melting the joining surfaces so they flow and solidify as one piece. Welding achieves this by applying enough heat to melt the base metals (and sometimes adding filler metal) so the molten regions mix and then cool to form a strong joint. It’s different from forging, which shapes metal through deformation without necessarily melting it; casting, which forms a single piece by pouring molten metal into a mold; and soldering, which bonds pieces at far lower temperatures with a filler metal without melting the workpieces themselves. Welding is the process that uses high heat to fuse the metals directly.