L09Notes

L09Notes - Lecture 9: Manufacturing Economics Tool wear and...

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Unformatted text preview: Lecture 9: Manufacturing Economics Tool wear and cost per cut Objective Understand some mechanisms in tool wear Understand how to maximize profit rate Understand factors that influence manufacturing economics Understand how to minimize cost per cut with respect to cutting speed Methods Slides and discussion of tool wear Discussion of profit and profit rate Discuss factors influencing manufacturing economics Develop equations to solve cost per cut for cutting speed Reference Material Cost per cut pdf Posted on course web site Lecture Notes Tool wear, machining time and Cost Per Cut ME1800 Objectives Methods Discuss factors influencing manufacturing economics Understand factors that influence manufacturing economics Slides and discussion of tool wear Understand some mechanisms in tool wear Develop equations to solve cost per cut for cutting speed Understand how to minimize cost per cut with respect to cutting speed Discussion of profit and profit rate Understand how to maximize profit rate Cost of cutting tools One local company that makes valves spends about a million dollars per year on cutting tool inserts A major US aircraft manufacturer spends about a million dollars per day on cutting tool inserts Lecture Notes Development of cutting tools Prior to 1900 hardened steel tools About 1900 high speed steel carbides in the steel provide improved hot hardness and resistance to wear Cutting speeds by a factor of 10...
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This note was uploaded on 04/29/2008 for the course ME 1800 taught by Professor Brown during the Winter '08 term at WPI.

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L09Notes - Lecture 9: Manufacturing Economics Tool wear and...

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