| 摘要 |
The procedure consists of machining the surface of a workpiece such as a panel, forming a series of perforating and non-perforating holes with the aid of a machine tool with a multi-position milling head. The movements of the milling head are controlled so as to produce surface shapes determined by bi-parametric equations with periodic or trigonometric functions. The perforated holes make up 15 - 22 per cent of the panel surface. |
