板材与面板 · 组件评测指南 · 立天云德
An outline also needs a reference. Original explanatory schematic; not to scale and not a product test result.
在旋转碳纤维零件以提高板材利用率之前，请先确认材料方向是否受控。排版布局应保持指定的取向和可见的编织方向。出于外观考虑而允许旋转，与允许更改层压取向是不同的。.
Use a datum arrow that survives the file handoff
Put a direction arrow on the part drawing and identify what it refers to: a laminate reference direction, a fabric direction or a cosmetic weave direction. Do not rely on the horizontal axis of an exported file. CAD files can be rotated during conversion, while a clear labelled reference remains interpretable after nesting and inspection.
Separate appearance from engineering orientation
A visible woven face does not reveal the complete stacking sequence. If only appearance is controlled, say so. If the engineering design controls the laminate, provide the material specification and reference direction. Hexcel’s prepreg guide discusses fibre orientation as a contributor to laminate behaviour; a purchasing drawing still needs the particular orientation rule for the actual part.
Approve nesting changes before cutting
Show which rotations and mirrored layouts are allowed. A mirrored outline may keep dimensions correct while changing face identification or the position of an asymmetric detail. Request an annotated nesting proposal when direction or face matching matters. The decision should come before cutting, not after a finished batch displays alternating patterns.
Example: paired dashboard inserts
Two matching trim pieces fit their openings, but their diagonal surface patterns run in different directions because one outline was rotated in the sheet layout. The next order identifies the visible face and a weave reference arrow for each handed part. The approved nesting drawing shows the pair together. This resolves the appearance requirement without claiming a particular structural laminate.
此为示例场景，并非客户案例或已报告的生产结果。.
下单前需确认的细节
| 评论对象 | 记录以示同意 |
|---|---|
| Direction reference | Material specification and arrow on the part drawing. |
| Allowed rotation | List permitted rotations rather than assuming any angle. |
| Handedness | Separate left/right and front/back references. |
| Approval record | Nesting revision and the person authorising exceptions. |
买家常问的问题
Does a twill pattern show all the fibre directions?
No. It shows the surface pattern, not the complete internal laminate.
Can parts always be rotated by 180 degrees?
Do not assume it. Check the drawing, face requirements and laminate specification first.
技术背景及相关阅读资料
背景资料： Hexcel：预浸料技术. 上述项目检查清单和示例仅供编辑参考；本参考资料并不对利天云德的组件进行认证。.