| Article ID: | iaor1999752 |
| Country: | South Africa |
| Volume: | 8 |
| Issue: | 2 |
| Start Page Number: | 47 |
| End Page Number: | 60 |
| Publication Date: | Jan 1997 |
| Journal: | South African Journal of Industrial Engineering |
| Authors: | Lubbe A.J. |
| Keywords: | numerical control |
The control units of numerically controlled manufacturing machines allow the programmer only a limited number of mathematical functions with which programs can be written. Despite these limitations it is now possible to write programs with which three-dimensional (3D) circular interpolation can be performed directly on the machines. The necessary mathematical techniques to perform 3D circular interpolation directly on the machines are deduced, although somewhat roundabout to overcome the programming limitations. The main programming limitations as well as cutter speed limitations are indicated.