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Surface Finish Constraint Formula

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feed constraint rate refers to the distance that the cutting tool advances along the workpiece per revolution of the workpiece or per tooth of the tool in milling. Check FAQs

C = \frac{0.0321}{r nose}

C - Feed Constraint?r_nose - Nose Radius?

Surface Finish Constraint Example

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With units

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Here is how the Surface Finish Constraint equation looks like with Values.

Here is how the Surface Finish Constraint equation looks like with Units.

Here is how the Surface Finish Constraint equation looks like.

0.3 = \frac{0.0321}{0.107}

0.3m⁻¹ = \frac{0.0321}{0.107m}

0.3 = \frac{0.0321}{0.107}

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Surface Finish Constraint Solution

Follow our step by step solution on how to calculate Surface Finish Constraint?

FIRST Step Consider the formula

C = \frac{0.0321}{r nose}

Next Step Substitute values of Variables

∴

C = \frac{0.0321}{0.107m}

Next Step Prepare to Evaluate

∴

C = \frac{0.0321}{0.107}

LAST Step Evaluate

∴

C = 0.3m⁻¹

Surface Finish Constraint Formula Elements

Variables

Feed Constraint

feed constraint rate refers to the distance that the cutting tool advances along the workpiece per revolution of the workpiece or per tooth of the tool in milling.

Symbol: C

Measurement: Reciprocal LengthUnit: m⁻¹

Note: Value should be greater than 0.

Formulas to find Feed Constraint

Nose Radius

Nose Radius is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length.

Symbol: r_nose

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Nose Radius

Other formulas in Mechanics of Orthogonal Cutting category

Go Cutting Speed given Spindle Speed

V = π \cdot D \cdot N

Go Machining Time given Spindle Speed

t = \frac{L}{f \cdot N}

Go Machining Time given Cutting Speed

t = \frac{π \cdot D \cdot L}{f \cdot V}

Go Nose Radius of Tool from Surface Finish Constraint

r nose = \frac{0.0321}{C}

How to Evaluate Surface Finish Constraint?

Surface Finish Constraint evaluator uses Feed Constraint = 0.0321/Nose Radius to evaluate the Feed Constraint, Surface finish constraint limits the maximum feed that can be used to attain the required surface finish on the machined feature. Feed Constraint is denoted by C symbol.

How to evaluate Surface Finish Constraint using this online evaluator? To use this online evaluator for Surface Finish Constraint, enter Nose Radius (r_nose) and hit the calculate button.

FAQs on Surface Finish Constraint

What is the formula to find Surface Finish Constraint?

The formula of Surface Finish Constraint is expressed as Feed Constraint = 0.0321/Nose Radius. Here is an example- 0.3 = 0.0321/0.107.

How to calculate Surface Finish Constraint?

With Nose Radius (r_nose) we can find Surface Finish Constraint using the formula - Feed Constraint = 0.0321/Nose Radius.

Can the Surface Finish Constraint be negative?

No, the Surface Finish Constraint, measured in Reciprocal Length cannot be negative.

Which unit is used to measure Surface Finish Constraint?

Surface Finish Constraint is usually measured using the 1 per Meter[m⁻¹] for Reciprocal Length. 1 per Kilometer[m⁻¹], 1 per Mile[m⁻¹], 1 per Yard[m⁻¹] are the few other units in which Surface Finish Constraint can be measured.

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