Method for manufacturing cylindrical bodies

TW202639244APending Publication Date: 2026-10-01NIPPON LIGHT METAL CO LTD +1
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Patent Information

Application Number
TW114151384
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-27
Filing Date
2025-12-26
Publication Date
2026-10-01

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Abstract

By means of a bending step, a roller is applied to bend the end of the workpiece (1) outward, thereby forming a curved portion with the end bent outward. Then, by means of a thickening step, a roller is applied to press the curved portion inward, thereby forming a thickened portion with the end deformed outward. Thus, within the inward range corresponding to the curved portion, the thickened portion is formed by extending the material outward.
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