Orthogonal Rake Angle Solution

STEP 0: Pre-Calculation Summary
Formula Used
Orthogonal Rake Angle = arctan((tan(Side Rake Angle of Tool)*sin(Approach or Entering Angle))+(tan(Back Rake Angle)*cos(Approach or Entering Angle)))
α = arctan((tan(αsr)*sin(λ))+(tan(αb)*cos(λ)))
This formula uses 5 Functions, 4 Variables
Functions Used
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., sin(Angle)
cos - Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle., cos(Angle)
tan - The tangent of an angle is a trigonometric ratio of the length of the side opposite an angle to the length of the side adjacent to an angle in a right triangle., tan(Angle)
ctan - Cotangent is a trigonometric function that is defined as the ratio of the adjacent side to the opposite side in a right triangle., ctan(Angle)
arctan - Inverse trigonometric functions are usually accompanied by the prefix - arc. Mathematically, we represent arctan or the inverse tangent function as tan-1 x or arctan(x)., arctan(Number)
Variables Used
Orthogonal Rake Angle - (Measured in Radian) - Orthogonal Rake Angle is the angle of orientation of the tool’s rake surface from the reference plane and measured on the orthogonal plane.
Side Rake Angle of Tool - (Measured in Radian) - The Side Rake Angle of Tool is an angle between the tool face and a line parallel to the base of the tool and measured in a plane perpendicular to the base at the side cutting edge.
Approach or Entering Angle - (Measured in Radian) - The Approach or Entering Angle is the angle between a plane perpendicular to the cutter axis and a plane tangent to the surface of the revolution of the cutting edges.
Back Rake Angle - (Measured in Radian) - The Back Rake Angle or Top Rake Angle is the angle between the face of the tool and a line parallel to the base of the tool and measured in a plane (perpendicular) through the side cutting edge.
STEP 1: Convert Input(s) to Base Unit
Side Rake Angle of Tool: 9.1631 Degree --> 0.159926264689462 Radian (Check conversion ​here)
Approach or Entering Angle: 15 Degree --> 0.2617993877991 Radian (Check conversion ​here)
Back Rake Angle: 36.3871 Degree --> 0.635074700252309 Radian (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
α = arctan((tan(αsr)*sin(λ))+(tan(αb)*cos(λ))) --> arctan((tan(0.159926264689462)*sin(0.2617993877991))+(tan(0.635074700252309)*cos(0.2617993877991)))
Evaluating ... ...
α = 0.64577230405488
STEP 3: Convert Result to Output's Unit
0.64577230405488 Radian -->37.0000275487905 Degree (Check conversion ​here)
FINAL ANSWER
37.0000275487905 37.00003 Degree <-- Orthogonal Rake Angle
(Calculation completed in 00.007 seconds)

Credits

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Created by Vinay Mishra
Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune
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National Institute Of Technology (NIT), Hamirpur
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Metal Cutting Tools Calculators

Orthogonal Rake Angle
​ LaTeX ​ Go Orthogonal Rake Angle = arctan((tan(Side Rake Angle of Tool)*sin(Approach or Entering Angle))+(tan(Back Rake Angle)*cos(Approach or Entering Angle)))
Side Rake Angle
​ LaTeX ​ Go Side Rake Angle of Tool = atan((sin(Approach or Entering Angle)*tan(Orthogonal Rake Angle))-(cos(Approach or Entering Angle)*tan(Inclination Angle)))
Inclination Angle
​ LaTeX ​ Go Inclination Angle = atan((tan(Back Rake Angle)*sin(Approach or Entering Angle))-(tan(Side Rake Angle of Tool)*cos(Approach or Entering Angle)))
Back Rake Angle
​ LaTeX ​ Go Back Rake Angle = atan((cos(Approach or Entering Angle)*tan(Orthogonal Rake Angle))+(sin(Approach or Entering Angle)*tan(Inclination Angle)))

Orthogonal Rake Angle Formula

​LaTeX ​Go
Orthogonal Rake Angle = arctan((tan(Side Rake Angle of Tool)*sin(Approach or Entering Angle))+(tan(Back Rake Angle)*cos(Approach or Entering Angle)))
α = arctan((tan(αsr)*sin(λ))+(tan(αb)*cos(λ)))

What is Orthogonal Rake Angle?

A cutting plane is one that is perpendicular to the reference plane and contains the principal cutting edge of the turning tool. Another imaginary plane, which is perpendicular to both the reference plane and the cutting plane, is called the orthogonal plane. Therefore, the cutting plane, reference plane, and orthogonal plane are mutually perpendicular. The rake angle measured on this orthogonal plane is called the orthogonal rake angle.

How to Calculate Orthogonal Rake Angle?

Orthogonal Rake Angle calculator uses Orthogonal Rake Angle = arctan((tan(Side Rake Angle of Tool)*sin(Approach or Entering Angle))+(tan(Back Rake Angle)*cos(Approach or Entering Angle))) to calculate the Orthogonal Rake Angle, Orthogonal Rake Angle is the angle of inclination of the tool’s rake surface from the reference plane and measured on the orthogonal plane. Orthogonal Rake Angle is denoted by α symbol.

How to calculate Orthogonal Rake Angle using this online calculator? To use this online calculator for Orthogonal Rake Angle, enter Side Rake Angle of Tool sr), Approach or Entering Angle (λ) & Back Rake Angle b) and hit the calculate button. Here is how the Orthogonal Rake Angle calculation can be explained with given input values -> 2334.012 = arctan((tan(0.159926264689462)*sin(0.2617993877991))+(tan(0.635074700252309)*cos(0.2617993877991))).

FAQ

What is Orthogonal Rake Angle?
Orthogonal Rake Angle is the angle of inclination of the tool’s rake surface from the reference plane and measured on the orthogonal plane and is represented as α = arctan((tan(αsr)*sin(λ))+(tan(αb)*cos(λ))) or Orthogonal Rake Angle = arctan((tan(Side Rake Angle of Tool)*sin(Approach or Entering Angle))+(tan(Back Rake Angle)*cos(Approach or Entering Angle))). The Side Rake Angle of Tool is an angle between the tool face and a line parallel to the base of the tool and measured in a plane perpendicular to the base at the side cutting edge, The Approach or Entering Angle is the angle between a plane perpendicular to the cutter axis and a plane tangent to the surface of the revolution of the cutting edges & The Back Rake Angle or Top Rake Angle is the angle between the face of the tool and a line parallel to the base of the tool and measured in a plane (perpendicular) through the side cutting edge.
How to calculate Orthogonal Rake Angle?
Orthogonal Rake Angle is the angle of inclination of the tool’s rake surface from the reference plane and measured on the orthogonal plane is calculated using Orthogonal Rake Angle = arctan((tan(Side Rake Angle of Tool)*sin(Approach or Entering Angle))+(tan(Back Rake Angle)*cos(Approach or Entering Angle))). To calculate Orthogonal Rake Angle, you need Side Rake Angle of Tool sr), Approach or Entering Angle (λ) & Back Rake Angle b). With our tool, you need to enter the respective value for Side Rake Angle of Tool, Approach or Entering Angle & Back Rake Angle and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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