Normal stress due to tool Formula

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Normal Stress is stress that occurs when a member is loaded by an axial force. Check FAQs
σn=sin(ϕ)Frsin((ϕ+β-γne))Ac
σn - Normal Stress?ϕ - Shear Angle?Fr - Resultant Cutting Force?β - Mean Friction Angle on Tool Face?γne - Working Normal Rake?Ac - Cross Sectional Area of Uncut Chip?

Normal stress due to tool Example

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With units
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Here is how the Normal stress due to tool equation looks like with Values.

Here is how the Normal stress due to tool equation looks like with Units.

Here is how the Normal stress due to tool equation looks like.

197.0968Edit=sin(11.406Edit)647.55Editsin((11.406Edit+52.43Edit-20Edit))0.45Edit
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Normal stress due to tool Solution

Follow our step by step solution on how to calculate Normal stress due to tool?

FIRST Step Consider the formula
σn=sin(ϕ)Frsin((ϕ+β-γne))Ac
Next Step Substitute values of Variables
σn=sin(11.406°)647.55Nsin((11.406°+52.43°-20°))0.45mm²
Next Step Convert Units
σn=sin(0.1991rad)647.55Nsin((0.1991rad+0.9151rad-0.3491rad))4.5E-7
Next Step Prepare to Evaluate
σn=sin(0.1991)647.55sin((0.1991+0.9151-0.3491))4.5E-7
Next Step Evaluate
σn=197096787.182499Pa
Next Step Convert to Output's Unit
σn=197.096787182499N/mm²
LAST Step Rounding Answer
σn=197.0968N/mm²

Normal stress due to tool Formula Elements

Variables
Functions
Normal Stress
Normal Stress is stress that occurs when a member is loaded by an axial force.
Symbol: σn
Measurement: PressureUnit: N/mm²
Note: Value should be greater than 0.
Shear Angle
Shear Angle is the inclination of the shear plane with the horizontal axis at machining point.
Symbol: ϕ
Measurement: AngleUnit: °
Note: Value should be greater than 0.
Resultant Cutting Force
The Resultant Cutting Force is the total force in the direction of cutting, the same direction as the cutting speed.
Symbol: Fr
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Mean Friction Angle on Tool Face
The Mean Friction Angle on Tool Face corresponds to the maximum static friction force between the tool face and workpiece.
Symbol: β
Measurement: AngleUnit: °
Note: Value should be greater than 0.
Working Normal Rake
The Working Normal Rake angle is the angle of orientation of the tool's rake surface from the reference plane and measured on a normal plane.
Symbol: γne
Measurement: AngleUnit: °
Note: Value can be positive or negative.
Cross Sectional Area of Uncut Chip
The Cross Sectional Area of Uncut Chip is the area enclosed within the outer surface of the workpiece and the line of cut followed by the single-point cutting edge. It is calculated for one pass.
Symbol: Ac
Measurement: AreaUnit: mm²
Note: Value should be greater than 0.
sin
Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse.
Syntax: sin(Angle)

Other formulas in Forces and Friction category

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Pm=VcutFc
​Go Cutting Speed using Rate of Energy Consumption during Machining
Vcut=PmFc
​Go Specific cutting energy in machining
ps=PmZw
​Go Rate of Energy Consumption during Machining given Specific Cutting Energy
Pm=psZw

How to Evaluate Normal stress due to tool?

Normal stress due to tool evaluator uses Normal Stress = sin(Shear Angle)*Resultant Cutting Force*sin((Shear Angle+Mean Friction Angle on Tool Face-Working Normal Rake))/Cross Sectional Area of Uncut Chip to evaluate the Normal Stress, Normal stress due to tool is when a force acts perpendicular (or "normal") to the surface of a workpiece, it exerts normal stress. Normal Stress is denoted by σn symbol.

How to evaluate Normal stress due to tool using this online evaluator? To use this online evaluator for Normal stress due to tool, enter Shear Angle (ϕ), Resultant Cutting Force (Fr), Mean Friction Angle on Tool Face (β), Working Normal Rake ne) & Cross Sectional Area of Uncut Chip (Ac) and hit the calculate button.

FAQs on Normal stress due to tool

What is the formula to find Normal stress due to tool?
The formula of Normal stress due to tool is expressed as Normal Stress = sin(Shear Angle)*Resultant Cutting Force*sin((Shear Angle+Mean Friction Angle on Tool Face-Working Normal Rake))/Cross Sectional Area of Uncut Chip. Here is an example- 0.000197 = sin(0.199072254482436)*647.55*sin((0.199072254482436+0.915076126820455-0.3490658503988))/4.5E-07.
How to calculate Normal stress due to tool?
With Shear Angle (ϕ), Resultant Cutting Force (Fr), Mean Friction Angle on Tool Face (β), Working Normal Rake ne) & Cross Sectional Area of Uncut Chip (Ac) we can find Normal stress due to tool using the formula - Normal Stress = sin(Shear Angle)*Resultant Cutting Force*sin((Shear Angle+Mean Friction Angle on Tool Face-Working Normal Rake))/Cross Sectional Area of Uncut Chip. This formula also uses Sine (sin) function(s).
Can the Normal stress due to tool be negative?
No, the Normal stress due to tool, measured in Pressure cannot be negative.
Which unit is used to measure Normal stress due to tool?
Normal stress due to tool is usually measured using the Newton per Square Millimeter[N/mm²] for Pressure. Pascal[N/mm²], Kilopascal[N/mm²], Bar[N/mm²] are the few other units in which Normal stress due to tool can be measured.
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