3. 𝑪𝑬 𝑰𝑰𝑾 = 𝑪 +
𝑴𝒏
𝟔
+
𝑪𝒓 + 𝑴𝒐 + 𝑽
𝟓
+
𝑵𝒊 + 𝑪𝒖
𝟏𝟓
𝑪𝑬 𝑰𝑰𝑾

4. MATERIAL JOINT TYPE WELDING PROCESS HV IN PARENT METAL HV IN HEAT AFFECTEDZONE HV IN WELD
MILDS STEEL BUTT MMA 135.133 165 154.6
MILDS STEEL BUTT TIG 146.1 179.55 182.7
API 5L CARBON PIPE BUTT MMA 176.25 189.1 162.35
API 5L CARBON PIPE BUTT TIG 156.675 193.5 175
EN8MEDIUM CARBON STEEL BUTT MMA 202.45 145.75 227.433
EN8MEDIUM CARBON STEEL BUTT TIG 176.85 169.85 481.75
01TOOL STEEL (ANNEALED) BUTT MMA 184.5 399 230.5
01TOOL STEEL (ANNEALED) BUTT TIG 184.5 312 207.5
TABLE OF AVERAGE VICKERS MICROHARDNESS VALUES ACROSS TEST SAMPLES

10. PROCESS ARCV(Volts) WELDINGI(Amps) EFFICIENCY(η) WELDTESTL(mm) TIME(Seconds) TRAVELSPEED(mm/min) AE(kJ/mm) HI(kJ/mm) %DIFFERENCE
MMA 19 75 0.8 50 17 176.471 0.4845 0.3876
TIG 75 120 0.6 50 22 136.364 3.96 2.376
TABLEOFRESULTSFORARCENERGYANDHEATINPUT
513.00%