colutionThinkness of alluminium plate =1.75 in Dia of hole =0.7im No. of holes =100Distance b/w adjecunt hol contry =1,5in cutting spced -300ft//min=3600in//min penetration feed =0,015in//sev.Transverse rate b/w hole in x-y plane =15in//min x-y moves are made at distance of 0,5 in above work surbaceThe rate at which drill is retarded is twice the penetration feed rate.Drill. point angh =100 degree cutting speed (V)=pi DN=3600inDiameter (D) =0.7514Rotational speed (N)=1527.88 rev/min =25.46ra//sec feed rate (f)= feed ** sotational speed =0.015 xx25.46=0.3819m. since point angle i s give therefor apporch distance and time must be consideredAproach distance (A)=0.5 D tan(90-theta//2) =0,3146 i4It is mentioned that x-y moves are made at 0.5 inch above work surface. it must be included in approadiso total distance -drill must ome ==0.5+1.75+0.314 i=2.5646imTime req to complete drill (T_(1))= distace/teedrate=2.5646//0.3819=6.71secTime required to roscund drillIt is mentiond that drill is ... See the full answer