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Tool Nose Radius = TNR

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 = TNR

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  1. Tool Nose Radius = TNR

  2. 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

  3. 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)

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

  5. TNR

  6. Circular interpolation • Direct Arc Programing line: • Direction G 03, • N010 G03 x2.00 Z -0.50 R 0.50

  7. Circular interpolation Direct Arc Programing line: Direction G 02,

  8. Circular interpolation example

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