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diff --git a/3257/CH8/EX8.6/Ex8_6.sce b/3257/CH8/EX8.6/Ex8_6.sce
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+// Calculation of material removal rate, power required and cutting time in face milling
+clc
+D = 160 // diameter in mm
+w = 70 // width in mm
+l = 450//length in mm
+d = 3 // depth in mm
+v = 0.5 // velocity in m/min
+N= 120 // rotation in rpm
+p_u = 1.1 // unit power for material
+printf("\n Example 8.6")
+a = w*d
+mrr = a*v*1000
+l_c = D/2
+t = (l+2*l_c)/(v*1000)
+f = v*1000/(d*N*10)
+power = p_u*mrr/60
+
+printf("\n Material removal rate is %d mm^3/min.",mrr)
+printf("\n power required in milling is %.3f kW.",power/1000)
+printf("\n Required time for milling is %.2f min.",t)
+