Abstract
The metal removal rate in milling is often limited by the tool-spindle dynamics. Higher stiffness and damping as seen at the top tip allow higher metal removal rates. While increasing the drawbar force leads to greater static stiffness in the tool-spindle interface, dynamic measurements indicate that higher drawbar forces also diminish the damping. Whether higher drawbar force is beneficial for stable metal removal depends on whether the gain in stiffness is greater than the loss in damping. This paper presents test-stand measurements of stiffness and damping for tool holder - spindle interfaces at various drawbar forces, and similar measurements in spindles.
| Original language | English |
|---|---|
| Pages (from-to) | 293-296 |
| Number of pages | 4 |
| Journal | CIRP Annals - Manufacturing Technology |
| Volume | 48 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1999 |
| Externally published | Yes |
Funding
We extend our sincere thanks to the National Center for Manufacturing Sciences (NCMS), and to John Agapiou of General Motors, for their assistance with equipment an d financial support. We are grateful to William Robert Winfough of lngersoll Milling Machine and to the Boeing Company for their assistance in the development of this paper.