THEORY OF METAL MACHINING

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Forces Acting on Chip•Friction force F and Normal force to friction N•Shear force F sand Normal force to shear F nFigure 21.10 -Forces in metalcutting: (a) forcesacting on the chipin orthogonalcutting©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Resultant Forces•Vector addition of F and N = resultant R•Vector addition of F sand F n= resultant R'• Forces acting on the chip must be in balance:R' must be equal in magnitude to RR’must be opposite in direction to RR’must be collinear with R©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Page 4 and 5: Why Machining is Important• Varie
Page 6 and 7: Machining in the Manufacturing Sequ
Page 8 and 9: TurningSingle point cutting tool re
Page 10 and 11: MillingRotating multiple-cutting-ed
Page 12 and 13: Figure 21.4 - (a) A single-point to
Page 14 and 15: Cutting Conditions for TurningFigur
Page 16 and 17: Machine ToolsA power-driven machine
Page 18 and 19: tr tChip Thickness Ratioocwhere r =
Page 20 and 21: Figure 21.7 - Shear strain during c
Page 22 and 23: Figure 21.8 - More realistic view o
Page 24 and 25: Segmented Chip•Brittle work mater
Page 26 and 27: Continuous with BUE•Ductile mater
Page 30 and 31: Coefficient of FrictionCoefficient
Page 32 and 33: Cutting Force and Thrust Force•Fo
Page 34 and 35: The Merchant Equation•Of all the
Page 36 and 37: •Higher shear plane angle means s
Page 38 and 39: Power and Energy RelationshipsIn U.
Page 40 and 41: Unit Power in Machining•Useful to
Page 42 and 43: Cutting Temperature•Approximately
Page 44: Cutting Temperature•Experimental

THEORY OF METAL MACHINING

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