Abstract
The direction vector of milling cutter for CL-data of five-axis milling is obtained by the fact that the bottom part of the milling cutter rides on free-form surfaces using the z-map method. Since the direction vector is known, CL-data can be transformed to the NC-code with regard to the geometry of the five-axis machine and post-processing. For uniform surfaces, the tool path is created from the prediction of cusp heights. After generating the NC-code, a sculptured surface was machined by five-axis end milling and cusp heights on the machined surface were measured by a three-dimensional CMM with laser scanner. From this machining test, it was found that this machining method is effective.
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Abbreviations
- P CC :
-
the position vector of the cc-point
- X G-Y G-Z G :
-
global coordinate
- X T-Y T-Z T,X C-Y C-Z C :
-
local coordinate on work table and spindle
- P XYZc-P XYZg :
-
the position vector of the bottom plane of the end mill cutter with respect of theX C-Y C-Z C coordinate andX G-Y G-Z G coordinate
- P C,P T :
-
the pivot point vector in the spindle and work table
- A,B,C :
-
swivel movements in NC-code,
- R,L t :
-
cutter radius,mm, and cutter length,mm
- L C :
-
the pivot distance from the gage line to the pivot point in spindle,mm
- L T :
-
the pivot distance from the work table to the pivot point in work table,mm
- f. S:
-
feedrate at cc-point,mm/min, and rotation speed of cutter,rpm
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Cho, H.D., Yang, M.Y. A study on the five-axis end milling for sculptured surfaces. KSME Journal 9, 428–437 (1995). https://doi.org/10.1007/BF02953641
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DOI: https://doi.org/10.1007/BF02953641