ENGIN 27 Midterm: e27-fa2015-mt1-Taylor-exam
Document Summary
Due wednesday october 28, 2015 at 11:59pm on bcourses. You are welcome to access any resources you need when completing this assignment (including lecture notes, the internet, reference texts, etc), and to ask the instructor and/or gsis if you need clarification of what is being asked. We have now decided to allow collaboration and consultation between students. This assignment is designed to be challenging but will hopefully also be rewarding and informative. You are designing a process to lathe-turn a series of cylindrical mild steel components from an initial diameter of 150 mm down to a final diameter of 148 mm in one pass. Your task is to decide between using a standard cutting tool made from high speed steel (hss) and a cemented carbide (tungsten carbide/cobalt composite) tool, which is more expensive but whose lifetime degrades more gradually with increasing cutting speed. The running costs of the lathe are crun = /hour including all maintenance, energy, labor and overheads.
