JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective:

This Laboratory course is designed to make the student to understand and demonstrate the various types Welding processes and its variables, testing methods and correlation between micro structure and Mechanical properties of the Welded joints.

Course Outcomes:

The student would gain hands on experience in various methods of welding and joining of metals and understand the mechanical behavior of the joint with respect to microstructure and mechanical properties.

LIST OF EXPERIMENTS

• 1. Study of gas welding equipment and process. Identification of flames, making Butt joint with gas welding.
• 2. Study of Arc welding process, comparison of the bead geometry with DCSP, DCRP and A.C.
• 3. Study of resistance spot welding process and plot the variation of spot area with time and current variation
• 4. Study of Tungsten Inert Gas (TIG) welding process and measurement of temperature during TIG welding process.
• 5. Study of fundamental aspects of Submerged Arc Welding (SAW) process and finding out deposition efficiency of the process.
• 6. Study of fundamental aspects of MIG welding process
• 7. To conduct tests on weld joints to evaluate the mechanical properties of the joints, like bend test and ram tensile test.
• 8. To evaluate the microstructure of welded joint and understand the structural difference in Weld zone, Heat Affected Zone and Base metal. R16 B.TECH METALLURGY AND MATERIALS ENGG.