A welded joint is a connection made by fusing two or more pieces of metal together using heat and pressure. This process creates a strong bond that can withstand various forces and stresses. Welded joints are commonly used in construction, manufacturing, and repair work, providing structural integrity to various projects. There are several types of welded joints, including butt joints, corner joints, and lap joints. Each type has its specific applications and advantages, depending on the materials and the desired strength of the connection. Proper welding techniques and equipment are essential for achieving high-quality welded joints.