Mangesh P. Datar - Cummins
Mangesh P. Datar - Cummins
Mangesh P. Datar - Cummins
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6<br />
Improve Phase<br />
Microstructure (%Laves phase) of the hard face deposit (Y1) is dependent<br />
on following important KPIV’s (X’s), hence these variables are fixed.<br />
� Welding current for all the three layers viz Current 1 & current 3 fixed.<br />
� Preheating temperature of the valves fixed.<br />
� Preheating temperature measurement system improved.<br />
� Welding torch height with respect to valve seat fixed.<br />
� Base plate run out checked and fixed.<br />
� Table rotation speed fixed.<br />
� Welding torch position in “X” & “Y” direction fixed.<br />
� Valve seat profile checking introduced.<br />
� Welding current displaying instruments calibrated.<br />
� Welding electrode dressing frequency & tip angle fixed .<br />
� SOP for machine parameters prepared & displayed on machine.
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