Machining Fundamentals

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Last updated 10:41 PM on 4/16/26
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9 Terms

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Why do parts require extra operations?

  1. to reach dimensions and tolerances

  2. 2. generate surface finish and integrity (for appearance)

  3. produce complex geometries

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Machining

removes and modifies a material

3
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Metal Cutting

removal of excess material from a workpiece in the form of a chip using a wedge-shaped tool

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Orthogonal Cutting

work material cuts perpendicular to the cutting edge (just like parting off on a lathe)

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Uncut chip thickness

thickness of the layer to be removed by cutting tools

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Primary Deformation Zone (PDZ)

area where material plastically deforms first, making the first chip

<p>area where material plastically deforms first, making the first chip</p>
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Secondary Deformation Zone (SDZ)

area where the clip slides up the fake face of the tool due to friction of the second plastic deformation

<p>area where the clip slides up the fake face of the tool due to friction of the second plastic deformation </p>
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Tertiary Deformation Zone (TDZ)

area where plastic deformation is generated

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Thermal energy

heat generated by the chip in metal cutting