How are metal legs and stands commonly joined in furniture manufacturing?

In the furniture industry, metal legs and stands are commonly joined to furniture frames or surfaces using two primary methods: welding and mechanical fastening.

Welding

Welding is a process that creates a permanent coalescence of metals by heating them to a suitable temperature, often with the use of a filler material. In furniture manufacturing, fusion welding—such as gas-shielded arc welding—is frequently employed to create strong, structural joints. This process involves melting the base metals to form a unified joint, which is ideal for ensuring stability in metal furniture frames. To prevent oxidation and ensure a high-quality bond, manufacturers often use inert gases like argon or protective fluxes.1

Mechanical Fastening

When a permanent weld is not required or when components need to be assembled or adjusted, mechanical fasteners are used:2

• Bolts and Nuts: These are essential for creating tight connections that must resist shear and bending forces, making them ideal for attaching heavy-duty metal legs to frames.2
• Screws: Commonly used for attaching metal hardware to wood or other materials, screws provide a secure fit by carving mating threads into the base material.2
• Pins: These are used when alignment is necessary or when the design requires a degree of rotational movement.2