Butt Weld

Definition

A butt weld is a weld in a joint between two members lying approximately in the same plane.

Purpose

Butt welding is used to join two pieces of metal end-to-end, creating a strong, seamless connection. This technique is widely used in construction, manufacturing, and pipeline assembly to create continuous metal structures or components.

Examples of Use

1. Pipeline Construction: Welding sections of pipe together to form long pipelines.
2. Structural Steel: Joining steel beams and plates in buildings, bridges, and other structures.
3. Automotive Manufacturing: Creating strong, continuous joints in the frames and bodies of vehicles.

Related Terms

• Fillet Weld: A weld that joins two surfaces at an approximate right angle to each other.
• Tee Weld: A weld joining two pieces that meet at a right angle, forming a "T" shape.
• Groove Weld: A weld made in a groove between two members to be joined.

Notes

Proper preparation of the edges to be welded, including cleaning and beveling, is crucial for achieving a strong butt weld. Welding parameters such as heat, speed, and filler material must be carefully controlled to ensure the integrity of the weld.