Question

what process can permanently join two pieces of metal? it also creates the strongest joint.

adhesive bonding
welding
mechanical fastening

Explanation:

Analyze the joining methods

The question asks for a process that permanently joins two pieces of metal and creates the strongest joint among the given options:

• Adhesive Bonding: Uses non-metallic materials (glues, epoxies) to join parts. It is generally weaker than metallurgical joints and susceptible to temperature degradation.
• Welding: A fabrication process that joins materials, usually metals, by causing coalescence. This is typically done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a joint stronger than or equal to the base metal.
• Mechanical Fastening: Uses physical hardware (screws, bolts, rivets) to hold parts together. These joints are often semi-permanent or temporary and do not fuse the materials together, making them weaker under certain stresses compared to a fused joint.

Determine the strongest permanent joint

Welding physically fuses the base metals together, creating a continuous metallurgical bond. This makes it the strongest permanent joining method among the choices.

Answer:

• Adhesive Bonding
• Welding (Correct answer)
• Mechanical Fastening