1) Describe what is a stripper? Write comparisons between single action die and double action die. Describe what is spring back with respect to bending? Explain the importance of Merchant’s circle diagram? Write down the procedure to construct the diagram. Specify the different kinds of chips produced during metal cutting? Explain the conditions where these types of chips are generated. Why discontinuous chips are preferred over continuous type?
2) Explain why cutting forces are measured? Explain the several ways in order to measure the cutting forces? Deduce the expression for Tool life for maximum production rate. State different cutting tool materials. Explain briefly any two significant tool materials along with its features and usability. Explain the design procedure for designing the single point cutting tool in detail? Explain what is center of pressure? Discuss the method of finding out the centre of pressure?