Which process yields a seam by melting surfaces together?

Which process yields a seam by melting surfaces together?

• A. Fusion welding
• B. Adhesive bonding
• C. Mechanical fastening
• D. Soldering

Answer: (A)

Fusion welding melts the base metals to create a seam. By applying heat, the surfaces to be joined reach their melting point and fuse as they cool, forming a continuous joint. This is different from adhesive bonding (which uses glue), mechanical fastening (which relies on clamps, bolts, or rivets), and soldering (where only filler metal is melted and the base metals stay solid). So the seam is achieved through melting and fusing the surface metals themselves, which is the hallmark of fusion welding.

Fusion welding melts the base metals to create a seam. By applying heat, the surfaces to be joined reach their melting point and fuse as they cool, forming a continuous joint. This is different from adhesive bonding (which uses glue), mechanical fastening (which relies on clamps, bolts, or rivets), and soldering (where only filler metal is melted and the base metals stay solid). So the seam is achieved through melting and fusing the surface metals themselves, which is the hallmark of fusion welding.