Tool nose radius tnr
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Tool Nose Radius = TNR. Tool nose radius. An offset feature used on turning center that slightly shifts the tool path for a round tip on an insert during multi-axis operation The X and Z axis of tool create a square point and most of tools for turning have radii. TNR.

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Tool nose radius
Tool nose radius

  • An offset feature used on turning center that slightly shifts the tool path for a round tip on an insert during multi-axis operation

  • The X and Z axis of tool create a square point and most of tools for turning have radii


Tool nose radius tnr
TNR

  • X and Z tool offsets to the tool change

  • Size of the TNR Standard radii are:

    1/64 or .0156

    1/32 or .0312

    3/64 or .0469

  • Tool nose vector

  • The tool tip of single pointed tool has specific location from the center of the TNR

  • The tool nose vector indicates this location to the controller(P320)


Tnr compensation
TNR compensation

  • G code activating TNR compensation is entered as a separate block in the program G41, G42



Circular interpolation
Circular interpolation

  • Direct Arc Programing line:

  • Direction G 03,

  • N010 G03 x2.00 Z -0.50 R 0.50


Circular interpolation1
Circular interpolation

Direct Arc Programing line:

Direction G 02,


Circular interpolation example
Circular interpolation example