Cuttermasters Professional JXT - Chapter 2 End Mill Grinding: the Basics before You Start

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CUTTERMASTER Professional JXT User’s Manual
Page 13
Chapter 2: End Mill Grinding - The Basics Before you
Start
2.1 End Mill Denition
Endmillsareprolesharpmillingcutters.Assuch,theyrequirecertaintreatmentwhensharpening.
These tools have a relatively small diameter in proportion to their length. Because of this long shape,
careshouldbetakenwhenholdingtoeliminatechatter,improvenishpropertiesandallowforgood
tool uniformity on the diameter. These tools also have a relatively small mass, meaning that care
should be taken by monitoring heat generated during the grinding process.
If the end mill has centers, these can be used for concentric holding. If not, the tool is generally held
byacolletattheshankendwithatoothrestsetinaspecicrelationtothewheelandtoolcenter.
This tooth/tool rest is usually placed directly at the point of contact between the wheel and the cutter,
minimizing vibration during the grinding process.
4-Flute Center Cutting End MIll