The procedure to construct a Merchants circle diagram Work Tool Chip Clearance

The procedure to construct a merchants circle diagram

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The procedure to construct a Merchant’s circle diagram
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Work Tool Chip Clearance Angle F t F c F N F n F s α α β ( β - α ) R A line can now be drawn from the head of the friction vector, to the head of the resultant vector (R). This gives the normal vector (N). Also add a friction angle ( β ) between vectors R and N. Therefore, mathematically, R = F c +F t = F + N. The procedure to construct a Merchant’s circle diagram
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Work Tool Chip Clearance Angle F t F c F N F n F s α α β ( β - α ) R The procedure to construct a Merchant’s circle diagram Draw a feed thickness line parallel to the horizontal axis. Next draw a chip thickness line parallel to the tool cutting face.
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Work Tool Chip Clearance Angle F t F c F N F n F s α α β ( β - α ) R The procedure to construct a Merchant’s circle diagram Draw a vector from the origin (tool point) towards the intersection of the two chip lines, stopping at the circle. The result will be a shear force vector (Fs). Also measure the shear force angle between Fs and Fc.
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