Drilling-background-with video

Drilling-background-with video - Test #3 Tuesday, Oct. 30,...

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    Test #3 Tuesday, Oct. 30, 2007 Topics Measurement, Inspection Chip-Type Processes and Formation Cutting Tools Turning, Boring, Lathes Drilling Test Format Multiple choice Historical Dates Equipment component identification Sample Test on Blackboard
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    Drilling and Related Processes Chapter 23
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    Drilling Notes Estimated that drilling makes up 25%  of all machining processes Twist drill invented in 1863, Stephen  Morse Depth-to-Diameter ratio Peek Drilling Process High MRR
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    Drilling   Simple procedure; however a complex  process Uses tool with 2 cutting edges Edges at the end of a relatively flexible tool Cutting action occurs inside the workpiece Only exit for chips is past the drill bit Counterflow of chips  makes lubrication and  coolant flow difficult Additional heat from friction generated
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    Twist Drill – Nomenclature  
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Drilling-background-with video - Test #3 Tuesday, Oct. 30,...

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