Welded joints and their advantages: Welding is a very commonly used permanent joining process. Thanks to great advancement in welding technology, it has secured a prominent place in manufacturing machine components. A welded joint has following advantages: (i) Compared to other type of joints, the welded joint has higher efficiency. An efficiency 95 % is easily possible. (ii)Since the added material is minimum, the joint has lighter weight. | Module 10 Design of Permanent Joints Version 2 ME IIT Kharagpur Lesson 3 Welded Joints Types and Uses Version 2 ME IIT Kharagpur Instructional Objectives At the end of this lesson the students should be able to know .Different types of welded joints. Factors that affect strength of a welded joint. Symbols and specifications of welded joints. 1. Welded joints and their advantages Welding is a very commonly used permanent joining process. Thanks to great advancement in welding technology it has secured a prominent place in manufacturing machine components. A welded joint has following advantages i Compared to other type of joints the welded joint has higher efficiency. An efficiency 95 is easily possible. ii Since the added material is minimum the joint has lighter weight. iii Welded joints have smooth appearances. iv Due to flexibility in the welding procedure alteration and addition are possible. v It is less expensive. vi Forming a joint in difficult locations is possible through welding. The advantages have made welding suitable for joining components in various machines and structures. Some typically welded machine components are listed below. Pressure vessels steel structures. Flanges welded to shafts and axles. Crank shafts Heavy hydraulic turbine shafts Large gears pulleys flywheels Gear housing Machine frames and bases Housing and mill-stands. Version 2 ME IIT .
