An engineering designer needs to appreciate the advantages and limitations of conventional and computer controlled metal cutting machine tools, to enable products to be economically manufactured. Although the modern trend is towards computer- aided manufacture (CAM) with all the instructions for machine operation fed to the machine as a command signal, each operation has to be broken down and analysed so that the most efficient program can be used by the computer. Therefore a thorough knowledge of basic machining operations is a pre-requisite before CAM can be efficiently utilised.
In this assignment students are required to demonstrate a good understanding of generative machining using NXCAM module to machine the parts as shown below, also good handling of the machining parameters such as; the spindle speed, the machine federate, step-over/scallops for tool path optimisation and finally the type of cutting tools required for each machining operation. The machining time optimisation in order to achieve the final design geometry is also quite important in this assignment. The students are also free to re-design the part to ease the manufacturing.
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