熱引伸輔助超塑成形製作機翼整流罩之設計及分析

Superplastic Forming Combined with Hot Drawing Process to Manufacture the Airliner Wing’s Fairing Covers

林維帥(Wei-Shuai Lin)

指導教授 ： 李雄

國立中央大學/工學院/機械工程研究所碩士在職專班/碩士(2012年)

摘要

超塑成形的材料有很多種，一般常見以鋁合金平板材料來進行吹製，成形深寬比較小，另外對於大型之製造業也有針對複雜且不對稱之幾合外形來進行實際工件製作，當然對於難度較高之工件，成形的製程更是顯得重要，本論文即以飛機製造業生產之鋁合金蒙皮零件“機翼前緣整流罩”所使用的模具與製程來做研究的方向。

本研究在執行超塑成形之前，先將鋁合金5083材料進行預成形折彎加工，再計算形狀所需之氣壓-時間成形曲線來完成超塑成形，折彎加工主要為了使板材在尚未執行超塑成形前，即可預先縮短材料與成形模具之間的成形距離，並使工件容易完成超塑成形，所以在探討該成形距離的重要性後，決定於該模具設計一熱引伸輔助加工的機構，並考量該機構的引伸尺寸大小，來進一步縮短該成形距離，以期此工件可以更容易完成超塑成形。

關鍵字

熱引伸 ； 超塑成形 ； 5083鋁合金

並列摘要

There are diverse raw material be used to process superplastic forming, and the most common raw material is aluminum alloy plate. If we use aluminum alloy plate to process superplastic forming, then the depth and width both are smaller than others raw material. Besides, SFP is used to large-scale equipment manufacture against the complex and unsymmetrical appearance. Apparently, the more difficult shaping is, the more important form processing is. In this paper we will study the model and processing of aluminum alloy spare parts “Fairing Cover” for aircraft manufacture industry.

In this paper we will calculate the pressure-time curve which is drawing from the test data of aluminum alloy 5083 pre-form bending process before carrying out SFP. The pre-form bending process can make the plate is easier to be shaped via shorten the distance between material and model. After realizing the importance of shorten forming distance, we improve the model and add a hot drawing equipment to help us to shorten the distance. Through changing the hot drawing size to shorten the distance, we expect the plate is easier to be shaped.

並列關鍵字

Hot drawing ； Aluminum alloy 5083 ； Superplastic forming

參考文獻

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