L - 9 Process Variable Selection

L - 9 Process Variable Selection - Process variable...

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Process variable selection
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Objective Learn how to select manufacturing process parameters in order to maximize value added reduce cost Using machining as an example Provide rationale for machining parameter selection for project work
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What adds value to manufactured parts? Geometric accuracy (Trueness, Precision) Surface finish (texture, roughness, smoothness, lay) Other properties: optical, mechanical, electrical, chemical, biological
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What adds to cost? Machining time Tool wear Tool breakage Scrapped part, rework Set-up time Tool changing Part loading Tool offset Workpiece probing Inspection What adds to cost that does not add to value for the customer?
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Machining process variables Machine tool Cutting Tool Feed rate (turning: length per revolution) or Feed speed (milling: length per time) Depth of cut Cutting speed Fixturing Orientation Tool path Tool overhang
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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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L - 9 Process Variable Selection - Process variable...

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