Title:
【発明の名称】超塑性成形用多層クラッド板とその製造方法、およびそれを用いた中空剛性ボードとその製造方法
Document Type and Number:
Japanese Patent JP3381748
Kind Code:
B2
Abstract:
PURPOSE: To provide a clad plate of multi-layer structure of >=3 layers which dispenses with the welding or the adhesion after the superplasticity is formed as the stock to obtain a composite formed body, especially having a hollow part, and to provide a large and hollow rigid board of higher degree of freedom in shape using the clad plated. CONSTITUTION: A core metallic plate 1 and liner metallic plates 2A, 2B on each side are pressed against each other by the hot rolling by interposing the press-fit preventing agent 3 therebetween in the prescribed pattern to manufacture a multi-layer clad plate, and at least the Al-Mg material for forming superplasticity is used for the core metallic plate 1. The pattern of the press-fit preventing agent 3 is of the stripe pattern, and the position of the stripe pattern of the press-fit preventing agent 3 is deviated between on one side of the core metallic plate 1 and on the other side. The fluid pressure is introduced to a non-pressing part by the press-fit preventing agent 3 inside the clad plate at 300-550 deg.C to bulge the non-pressing part (by achieving the super plastic deformation of the core metallic plate 1) to obtain a hollow rigid board.
Inventors:
Mamoru Matsuo
Tsutomu Tagata
Kotaro Yokota
Nobuyuki Ohta
Tsutomu Tagata
Kotaro Yokota
Nobuyuki Ohta
Application Number:
JP33176294A
Publication Date:
March 04, 2003
Filing Date:
December 09, 1994
Export Citation:
Assignee:
Ship and Ocean Foundation
Sky Aluminum Co., Ltd.
SHOWA DENKO K.K.
Sky Aluminum Co., Ltd.
SHOWA DENKO K.K.
International Classes:
B23K20/04; B21D26/021; B21D26/055; B21D26/059; B21D47/00; B23K20/18; B23K20/24; B32B15/01; B23K101/02; B23K103/10; (IPC1-7): B23K20/04; B21D47/00; B23K20/18; B23K20/24; B32B15/01
Domestic Patent References:
| JP5212562A | ||||
| JP6226467A | ||||
| JP5192726A |
Attorney, Agent or Firm:
Takehisa Toyoda