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Chapter21ba - Materials Processes in Manufacturing ME 151...

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©2003 Bill Young 1 Materials & Processes in Manufacturing ME 151 Chapter 21 Fundamentals of Chip Type Machining Processes ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bill Young 2 Materials Processing ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bill Young 3 Introduction Machining is the process of removing unwanted material from a workpiece in the form of chips to obtain a finished product of the desired _______, _______, and ___________ Machining is the most important of the basic manufacturing processes Vast majority of manufactured products require machining at some stage in their production 7 Basic Chip Formation Processes Shaping / Planing • Turning • Milling • Drilling • Sawing • Broaching Grinding (Abrasive Machining) ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________
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©2003 Bill Young 4 Machining Inputs & Outputs Figure 21-1 Page 481 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bill Young 5 Fundamental Cutting Parameters For all metal cutting processes it is important to distinguish between: ________________ - Primary cutting motion and relates to velocity of workpiece relative to cutting tool (sfpm, in/min, m/m, m/sec) _________ - Amount of material removed per revolution or per pass of tool over workpiece (in/rev, in/cycle, in/min, in/tooth) ______________ - Distance tool engages workpiece Figure 21-5 Page 485 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bill Young 6
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