| 摘要 |
<p>A novel method is provided for forming a clear hole through a composite plate (20). A punching apparatus (48) is advanced through an extension skin of a first composite plate and a first skin (40) of a second composite plate, thereby compressing the core material of the second composite plate and forming a first slug (86). The apparatus is withdrawn therefrom. The composite plates are flipped over. The apparatus is advanced through a second skin (42) of the second composite plate, forming a second slug (95).</p> |
