| 摘要 |
A method and apparatus for cutting sheet material (12) upon an apertured substrate (40), the apparatus including a microporous sacrificial overlay (30) affixed to the substrate (40). The overlay (30) is selected to provide sufficient support to the sheet material (10) such that upon a cutting wheel (82) passing over an aperture (43) in the substrate, the sheet material (12) is severed by the cutting wheel (82). |
