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Part-Off and Grooving

The primary physical challenge in grooving is managing the high cutting forces and preventing tool deflection.

Theoretical Background & Mathematical Equations

The primary physical challenge in grooving is managing the high cutting forces and preventing tool deflection.

                    Grooving Tool (3-Side Contact)
                          ________________
                         |  Workpiece     |
                    _____|                |_____
                   |     |   Chip Flow    |     |
                   |     |      /\        |     |
                   |_____|      ||        |_____|
                         |   |__||__|     | <-- 3-Side Rubbing
                         |   | Tool |     |
                         |   |______|     |

Grooving Blade Deflection Equation

A grooving or parting blade behaves like a cantilever beam loaded at its free end. The physical deflection () of the blade tip under cutting force () is calculated as:

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Engineer, author of The Big Book of 3D Printing and additive manufacturing expert