Area of Contact in Theory of Ernst and Merchant Formulas

Area of Contact is defined as the area which is in the contact with the surface of the tool. And is denoted by A_r. Area of Contact is usually measured using the Square Millimeter for Area. Note that the value of Area of Contact is always positive.

Formulas to find Area of Contact in Theory of Ernst and Merchant

fxArea of contact given Total Frictional Force in metal cuttingGo

Theory of Ernst and Merchant formulas that make use of Area of Contact

fxTotal frictional force in metal cuttingGo

fxShear Strength of Material given Total Frictional force in metal cuttingGo

List of variables in Theory of Ernst and Merchant formulas

fx Total Frictional Force By Tool Go

fx Shear Strength of Material Go

FAQ

What is the Area of Contact?

Area of Contact is defined as the area which is in the contact with the surface of the tool. Area of Contact is usually measured using the Square Millimeter for Area. Note that the value of Area of Contact is always positive.

Can the Area of Contact be negative?

No, the Area of Contact, measured in Area cannot be negative.

What unit is used to measure Area of Contact?

Area of Contact is usually measured using the Square Millimeter[mm²] for Area. Square Meter[mm²], Square Kilometer[mm²], Square Centimeter[mm²] are the few other units in which Area of Contact can be measured.

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