ASSIGNMENT
ASSIGNMENT N0 -1 LAST DATE OF SUBMISSION-4/10/2020 Sub Name - Advance Welding process (a) Define welding metallurgically ..Name some joining processes other than welding . List the criterion for selection of welding process. (b) What is an Arc ? How is it produced? (c) Compare AC and DC welding (d) What do you understand by polarity in welding ? Which polarity will you select when welding (i) Aluminum (ii) copper (e) Draw characteristic curve of arc and power resources .Explain how stability maintenance could be understood achieved. (f) State the effect of current and voltage on quality of weld. (g) Explain different termonology used in welding process (h) Explain different types of joints with diagram (i) write a short note on a) TIG b) MIG (J) classify welding process ...