Final answer:
Welding is a sculptural fabrication process used to join metal materials. A filler metal is applied locally and melted to create a strong joint.
Step-by-step explanation:
Welding is a sculptural fabrication process used to join metal materials. To join the parts, a filler metal is applied locally and then melted. The melted filler metal acts as a bonding agent between the parts, creating a strong joint. Various sources of heat, such as gas, electricity, or laser, can be used for the melting process. Forge welding, which has been used for centuries, is an example of this technique.