L - 8 Tooling and Tool Selection

L - 8 Tooling and Tool Selection - • Online version...

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Tooling and tool selection
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Objectives Understand how to select tooling based on manufacturers recommendations Understand how to select process variables based on manufacturers recommendations
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Workpiece materials Machinability – tool selection Composition – alloy Treatment - Microstructure Hardness
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Hardness testing (ASTM Standard) Rockwell Knoop
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Vickers F: kilograms, d: millimeters square-based pyramid with an angle of 136°
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Tool materials HHS (carbide formers: W, Mo, Cr, V) Cemented carbides (W-C Co) Coatings: Diamond TiC, TiN
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Reading Oberg, E.; Jones, F.D.; Horton, H.L.; Ryffell, H.H. (2000). Machinery's Handbook (26th Edition). (pp. 978 - 985). Industrial Press.
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Unformatted text preview: • Online version available at: http://www.knovel.com/knovel2/Toc.jsp?BookID=309&VerticalID=0 Specs for WPIs HAAS Tools Machine Max RPM Max Power Tool Capacity Mini Mill 6,000 7.5 HP 10 TM-1 4,000 7.5 HP 10 VM-3 12,000 30 HP 24+1 Super VF-4 12,000 30 HP 24+1 Mill Drill Center 10,000 20 HP 24+1 SL-10 6,000 15 HP 10 TL-1 1,800 7.5 HP 1 SL-20 3,500 30 HP 12 Kennametal milling catalog access from myWPI site Tool Grade Selection RPM = (12 * SPM) / (PI * Tool Diameter) SPM (Feet/Min) Tool Diameter (in) Make sure you know what the units are! PM = PT * Number of Flutes * RPM Rule of thumb: Z = 0.25 * XY Common Tab in SolidMill - Pocketing...
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