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Tutorial - EDM
Date: 9-9-2015
Note:
i. Solve the following problems on EDM and submit the same before 5.00 pm today. Attendane will be
given only for those who submit this tutorial. !ou an refer our leture slides and Advaned mahining
proesses boo" by # $ %ain.
ii. Assume suitable value for any missing data.
& A through hole 'dia (&0mm) in a plate '5mm thi") is to be drilled using EDM. Estimate the time re*uired
for the proess. Assume +(50,- (&0 m/- #o( 00 #- #b(&50 #- $( 0.&1 to obtain M++ in mm23min.
& /or + iruit- ad4usted for maimum power delivery ondition the following data are available:
'i) +(50,- (5 m/ and supply voltage (65 volts alulate harging urrent and fre*ueny of disharge
when the iruit is losed.
'ii) A &0 mm dia hole is to be drilled in a 5 mm 7SS plate by EDM using + iruit. 8he re*uired surfae
finish is 0 9m. Determine speifiation of a apaitor to be used when supply and disharge voltages are
0 # and &50 # respetively. se resistane as 50, and value of the onstant as 0.;. Also- estimate time
re*uired to omplete the 4ob.
Tutorial - EDM
Date: 9-9-2015
Note:
i. Solve the following problems on EDM and submit the same before 5.00 pm today. Attendane will be
given only for those who submit this tutorial. !ou an refer our leture slides and Advaned mahining
proesses boo" by # $ %ain.
ii. Assume suitable value for any missing data.
A through hole 'dia (&0mm) in a plate '5mm thi") is to be drilled using EDM. Estimate the time re*uired
for the proess. Assume +(50,- (&0 m/- #o( 00 #- #b(&50 #- $( 0.&1 to obtain M++ in mm23min.
2 /or + iruit- ad4usted for maimum power delivery ondition the following data are available:
'i) +(50,- (5 m/ and supply voltage (65 volts alulate harging urrent and fre*ueny of disharge
when the iruit is losed.
'ii) A &0 mm dia hole is to be drilled in a 5 mm 7SS plate by EDM using + iruit. 8he re*uired surfae
finish is 0 9m. Determine speifiation of a apaitor to be used when supply and disharge voltages are
0 # and &50 # respetively. se resistane as 50, and value of the onstant as 0.;. Also- estimate time
re*uired to omplete the 4ob.