00:01
Hi, in this question there are multiple questions.
00:02
So, this is about edm.
00:05
So, this is about electric discharge machine.
00:07
So, in the first question we have to describe the unsuitability of the traditional machining methods.
00:13
So, the reasons are so, traditional machining methods are complex geometry.
00:17
So, because of their complex geometry and they are made up of hard and brittle materials and also they are heat sensitive, then they are micro machining.
00:37
So, they are hard so, hard for micro machining and also cost effectiveness.
00:46
So, they are bulky and they are economically unmeasurable.
00:51
So, cost effectiveness.
00:55
Then we have in the second part of the question we have the metal removal rate is given by 20 into 10 power minus 3 into 1 .6 into 10 power minus 3 into 1 .2 divided by 60 which is equal to 6 .4 into 10 power minus 7 meter cube per second.
01:15
Then we have so, this is or this can be written as 10 power minus 3 centimeter cube per second.
01:23
Now, we have the mass of the metal removed will be equal to it is density of the copper into metal removal rate.
01:33
So, which is equal to so, it is so, 8 .96 into 6 .4 into 10 power minus 3.
01:42
So, which is equal to it is 0 .057 gram per second.
01:48
Now, we have the power required will be equal to so, it is 1550...