UCAX.NET

※ 在圖面上得到紅色為反彈的部品，綠色為參考的板件，下面則是回彈補正後的結果。

這篇是從 Autoform 官方網站 的資訊，大概內容是關於 Autoform的用戶在實際工作上使用回彈分析後的比較。而且在分析中也使用 Clamp 夾持點的設定，模擬在檢具中的固定方式來得到回彈補償的結果。

這些是 Autoform 4.1版以上的新功能。你可以參考：關於Autoform 4.1版的新功能(Release Note)

原文：

Mühlhoff Umformtechnik GmbH ensures the production reliability of complex stamping parts with AutoForm simulation. Mühlhoff knows from experience that stamping parts with springback effects represent a high risk for the company, both with regard to costs and lead times. This cautious approach was again proven during the tool development for the roof reinforcement of the Volvo model.

Mühlhoff was working on a project for Volvo Cars Body Components. The goal was to design a die for a long, narrow stamping part, which showed considerable springback effects. There was no doubt for Mühlhoff that AutoForm simulation was the right choice to ensure production for this stamping. The first simulation result showed an insecure form stability caused by the insufficient stretching of the material. Taking the clamping and fixing points into account, the springback results showed a deviation of several millimeters compared to the target geometry. It was possible to compensate the springback, however the stable production of the stamping part was not yet ensured. Noise variables, such as material gauge thickness were the root cause. Subsequently, the whole process was analyzed with AutoForm-Sigma under the influence of fluctuating manufacturing parameters, in order to design it robustly. Springback compensation can be successfully performed and leads to a dimensionally stable stamping part, only if the process is robust. The tool compensation was realized using the findings of the AutoForm-Sigma analysis, and after four compensation loops the result was in accordance with the geometric specifications. The compensated CAD data generated by AutoForm software were directly used by Mühlhoff for milling.