| 摘要 |
The process involves putting grooves (3) into the flat strip material along the box edge, then rolling or bending the material around the bush or box form (1). The superfluous edge areas (5) along the grooves are taken off by machine, creating a bevel (4) and the prepared bush or box in its final form, say obliquely-sided (2), is left. The invention can also apply to trapezoid or stepped boxes as well as form boxes made of strip material, with a starting point being a strip with right-angled cross-section typically used for cylindrical boxes. |
