Name a type of welding that does not require filler material.

• A. TIG welding
• B. Electron beam welding
• C. MIG welding
• D. Stick welding

Answer: (B)

Electron beam welding is a type of welding that does not require filler material. This process utilizes a high-energy beam of electrons to fuse materials together, generating heat as the electrons collide with the workpiece. The intense heat produced is sufficient to melt the base metals at their joint without the need for an additional filler material.

In conventional welding processes like TIG, MIG, and Stick welding, filler materials are often required to bridge the gap between workpieces or to reinforce the joint. These processes involve using rods or wires that add material to the weld, strengthening the connection. However, in electron beam welding, the precision and control offered by the electron beam allow for effective joining of materials solely through their melting and subsequent solidification, making it a unique process in this regard.