APPARATUS AND METHOD FOR FORMING SHAPE OF METAL FOIL PRODUCTS WITH WRINKLELESS SURFACE

The present disclosure provides an apparatus (100) and a method for forming a shape of a metal foil (250) product from a blank. The apparatus (100) comprises a forming tool (110) comprising a die (210), a punch (220) and a pressing plate (230). The punch (220) comprises a channel (222) located withi...

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG, Pengfei, CHAN, Luen Chow, LUI, Tin Loi, TONG, Shui Yuk, KONG, Ting Fai
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The present disclosure provides an apparatus (100) and a method for forming a shape of a metal foil (250) product from a blank. The apparatus (100) comprises a forming tool (110) comprising a die (210), a punch (220) and a pressing plate (230). The punch (220) comprises a channel (222) located within the punch (220) and having an inlet (223) and an outlet (224), the outlet (224) is located on the forming surface for allowing a fluid to be injected into an enclosed space (354) created by at least the punch (220) and the central portion (252) of the blank for filling the enclosed space (354) to develop a hydraulic pressure (355) for pushing the central portion (252) of the blank into the die cavity (211) of the die (210) for forming the shape of the product, thereby forming the product with smooth surface and without cracks and wrinkles.