超塑性成型法
•新發展的成型技術應用類似熱塑成型原理來生產板金件。
金屬板材加熱後以空氣壓力加壓成型。
這種製程使用特殊的鋁、鈦、鎂材料的超塑性。
超塑性成型有主要５種技術：腔內，發泡，背壓，隔膜、真空爐成型成型。
在所有５種製程中金屬薄板進料到機台上，夾持後加熱至介於攝氏450至500度。
溫度取決於金屬薄板的材質和厚度。
發泡成型和熱塑成型的方法類似。
超塑性成型法 的應用實例
•新發展的成型技術應用類似熱塑成型原理來生產板金件。
金屬板材加熱後以空氣壓力加壓成型。
這種製程使用特殊的鋁、鈦、鎂材料的超塑性。
超塑性成型有主要５種技術：腔內，發泡，背壓，隔膜、真空爐成型成型。
在所有５種製程中金屬薄板進料到機台上，夾持後加熱至介於攝氏450至500度。
溫度取決於金屬薄板的材質和厚度。
發泡成型和熱塑成型的方法類似。
Biomega-MN-Bicycle
MN自行車由丹麥著名工業設計師馬克·紐森設計，並結合驚人的外觀與令人印象深刻的技術特點。
形狀獨特的框架是由“超塑性成型製造，框架的兩片外殼再由環氧樹脂膠膠合在一起，所有的佈線小心隱藏在框架中。
http://www.designisthis.com/blog/en/post/biomega-mn-bicycles-marc-newson
補充 超塑性成型法共有5種加工方法
1) 吹泡成型技術 Bubble forming technique
適用於較深的零組件, 成型厚度較均勻。
Bubble forming is ideally suited to deep complex components especially where wall thickness needs to remain relatively constant during and after forming. This process allows geometry impossible to achieve using any other superforming process.
2) 腔內成形術 Cavity forming technique
適用於大型複雜的零件。
Cavity forming is ideal for large complex parts. The process is ideally suited to forming 5083 aluminium alloys & Magnesium.
3) 隔膜成型 Diaphragm forming
適用於非超塑性材料的成型
Diaphragm forming allows non superplastic alloys to be formed successfully into complex 3D shapes.
http://www.superform-aluminium.com/technical/forming/diaphragm
4) 背壓成型 Back Pressure forming
類似腔內成型法, 但加工片材的雙面都有加壓, 利用輕微的壓力差緩慢地將材料成型, 厚度更均勻, 不會破裂。適用於硬度最高的鋁鋅合金航太零件。
The back pressure forming process was developed by Superform to form structural airframe components in 7475 alloys. Similar to Cavity forming, the process differs by using air pressure from both sides of the sheet, and slowly forming the hot sheet using slight pressure differential. This maintains the integrity of the sheet and allows forming of structural components.
http://www.superform-aluminium.com/technical/forming/back-pressure
5) 真空爐成型 Vacuum Furnace
主要用於鈦合金材料, 不需要加壓。
Forming of titanium components and assemblies formed from
Titanium Alloy 6AL-4V. Superform’s advanced titanium forming process brings numerous benefits to part design to provide superior titanium components.
VF SPF is superplastic forming without the press
It is an advanced method for superplastic forming of titanium sheet metal components
http://www.superform-aluminium.com/technical/forming/vacuum-furnace
