(a) A turning operation is performed on a 060 mm cylindrical part of a certain alloy. The work material has a length of 140 mm as shown in Figure Q3-1. The finished (produced) part is- shown in Figure Q3-2 which has an overall length of 100 mm. The remaining part of the raw material length is kept as a gripped part on the turning machine chuck. The cutting data is shown in Table Q3(a). Apply engineering calculations on the given metal cutting operations, Table Q3(a) Depth of cut Feed 2.5mm 0.15mm/rev 40m/min Cutting Speed Rake angle The chip thickness after cut Shear strength 50 0.17mm 280 MPa (i) Shear force. (ii) Coefficient of friction. (iii) Cutting force. (iv) Time required to cut the part (v) Rate of material removal.v $50mm D60mm -$20mm 60 mm 7 140 mm 40 mm Figure Q3-1 Figure Q3-2 4. Pa+bi Rect 1 Ran DRG Reolm2 x10* Ans

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Machining Processes and Machine Tools

Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many more are applied to get the desired shape. As compared to other manufacturing processes, machining is precise and versatile.