Mechanical Engineering , Production Engineering
What is Orthogonal cutting and Oblique cutting ?
Methods of Machining/Metal Cutting
Following are the two methods of metal cutting depending upon the arrangement of cutting edge with respect to the direction of tool travel
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Orthogonal cutting or two dimensional cutting
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Oblique cutting or three dimensional cutting
1. Orthogonal cutting or two dimensional cutting
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In orthogonal cutting , the cutting edge of the tool is perpendicular to the direction of tool travel .
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The cutting edge clears the width of the workpiece on either ends .
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The chip flows over the tool face and the direction of the chip flow velocity is normal to the cutting edge .
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The maximum chip thickness occurs at the middle .
2. Oblique cutting or three dimensional cutting
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In oblique cutting , the cutting edge of the tool is inclined at an angle less than 90 ° to the direction of tool travel .
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Frequently , more than one cutting edges are in action .
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The cutting edge may not clear the width of the work piece .
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The chip flows on the tool face at an angle less than 90 ° with the normal on the cutting edge .
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The maximum chip thickness may not occur at the middle .