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# Tool Nose Radius = TNR - PowerPoint PPT Presentation

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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## PowerPoint Slideshow about ' Tool Nose Radius = TNR' - ronald

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Presentation Transcript

### Tool Nose Radius = TNR

• 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
• 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
• G code activating TNR compensation is entered as a separate block in the program G41, G42
Circular interpolation
• Direct Arc Programing line:
• Direction G 03,
• N010 G03 x2.00 Z -0.50 R 0.50
Circular interpolation

Direct Arc Programing line:

Direction G 02,