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1. US20080178650 - Profile element pipe for hydraulic bulging, hydraulic bulging device using the element pipe, hydraulic bulging method using the element pipe, and hydraulically bulged product

官庁 アメリカ合衆国
出願番号 12003389
出願日 21.12.2007
公開番号 20080178650
公開日 31.07.2008
特許番号 7827839
特許付与日 09.11.2010
公報種別 B2
IPC
B21D 39/08
B処理操作;運輸
21本質的には材料の除去が行なわれない機械的金属加工;金属の打抜き
D本質的には材料の除去が行われない金属板,金属管,金属棒または金属プロフィルの加工または処理;金属の押抜き
39物体または部品を結合するための方法の適用,例.鍍金以外の金属板での被覆;拡管装置
08拡管装置
CPC
B21D 26/045
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
02by applying fluid pressure
033Deforming tubular bodies
045Closing or sealing means
B21D 26/033
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
02by applying fluid pressure
033Deforming tubular bodies
B21D 26/047
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
02by applying fluid pressure
033Deforming tubular bodies
047Mould construction
Y10T 29/49805
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
29Metal working
49Method of mechanical manufacture
49805Shaping by direct application of fluent pressure
出願人 Sumitomo Metal Industries, Ltd.
Sumitomo Pipe and Tube Co., Ltd.
Mitsubishi Jidoshakogyo Kabushiki Kaisha
発明者 Tomizawa Atsushi
Kojima Masayasu
代理人 Clark &; Brody
優先権情報 2002325801 08.11.2002 JP
発明の名称
(EN) Profile element pipe for hydraulic bulging, hydraulic bulging device using the element pipe, hydraulic bulging method using the element pipe, and hydraulically bulged product
要約
(EN)

According to a bulging device and a bulging method using a profile element pipe, for example, even when a profile steel pipe having a cross sectional shape varying in the axial direction as in a tapered pipe is hydraulically bulged, a bulging in which an internal pressure loading and an axial pressing are combined with each other can be performed to provide a larger expansion ratio than a conventional case and a joining and socket connection thereof to the other part can also be easily performed.

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