Find out the error(s) in the following design of a casting.(a) The vertical faces must be tapered ( provide draft allowance) only(b) The cavity must be created using some additional elements ( loose piece) only(c) The vertical faces must be tapered as well as the cavity must be created using loose piece(d) Nothing needs to be done ( no error)This question was addressed to me in class test.Question is taken from Pattern Design in portion Pattern and Pattern Making of Casting-Forming-Welding I

Find out the error(s) in the following design of a casting.(a) The ver

1.	Find out the error(s) in the following design of a casting.(a) The vertical faces must be tapered ( provide draft allowance) only(b) The cavity must be created using some additional elements ( loose piece) only(c) The vertical faces must be tapered as well as the cavity must be created using loose piece(d) Nothing needs to be done ( no error)This question was addressed to me in class test.Question is taken from Pattern Design in portion Pattern and Pattern Making of Casting-Forming-Welding I
Answer» The correct choice is (c) The vertical faces must be tapered as well as the cavity must be created using loose PIECE For explanation: Draft allowances well as loose piece NEEDS to be provided to the pattern in order to maintain the quality of the CASTING. The CORRECTED DESIGN is drawn below

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