Invention Grant
- Patent Title: Annular composite workpieces and a cold-rolling method for producing said workpieces
- Patent Title (中): 环形复合工件和用于生产所述工件的冷轧方法
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Application No.: US10563969Application Date: 2004-07-08
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Publication No.: US08161620B2Publication Date: 2012-04-24
- Inventor: Thomas Ficker , Andrá Hardtmann , Mario Houska , Volker Thoms
- Applicant: Thomas Ficker , Andrá Hardtmann , Mario Houska , Volker Thoms
- Applicant Address: DE Dresden
- Assignee: Technische Universität Dresden
- Current Assignee: Technische Universität Dresden
- Current Assignee Address: DE Dresden
- Agent Gudrun E. Huckett
- Priority: DE10331061 20030709
- International Application: PCT/DE2004/001539 WO 20040708
- International Announcement: WO2005/005079 WO 20050120
- Main IPC: B21D39/00
- IPC: B21D39/00 ; B29D33/00

Abstract:
In a cold rolling method for producing annular composite workpieces, at least two hollow cylindrical workpieces made of different materials are inserted into one another. The at least two hollow cylindrical workpieces are roll formed by pressing the at least two hollow cylindrical workpieces against each other between two diametrically opposed external roll forming tools and an internal rolling arbor or between two diametrically opposed external roll forming tools and an internal roll forming tool to form a composite workpiece. The composite workpiece is a bearing ring or a gear ring. One of the hollow cylindrical workpieces can be a nonferrous material such as aluminum.
Public/Granted literature
- US20060196033A1 Annular composite workpieces and a cold-rolling method for producing said workpieces Public/Granted day:2006-09-07
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