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NX-CLS output for ball end cutter with tapered shaft

Dear Sirs/Madams,

 

on the above subject I have a following situation:

 

1. This is the definiation of a Ball end milling cutter in NX (9.0) with a taper angle in metric unit

 

D = 10  B = 5 L = 75 FL = 50 (other paramters are not relevant for this issue)

 

2. Belwo is the output of the same tool in NX-CLS format (from command  << AnyCAM Operation>>[Actions] -> List)

 

TLDATA/MILL,9.1633,5.0000,75.0000,5.0000,0.0000

 

The first  "9.1633" represent the value of tool diamter at the interface of toolchaft and the tool's ball end.

 

Question:

I need to know how is this value calculated. According to my calculation this value should be 9.96194   (by using Dc = D * cos(B) for the length of chord at the tangent intersection of tool shaft and ball-end).

 

Appreciate an explanation/comment.

 

Riaz Ur-Rehman

 

1 REPLY
Solution
Solution
Accepted by topic author AixPath
‎08-26-2015 04:32 AM

Re: NX-CLS output for ball end cutter with tapered shaft

[ Edited ]

 

D*tan(0.5*(90-B))

 

10*tan(42.5) = 9.1633117401742338436255702200966

 

Need any explanations?

 

 

 

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