BURRING PROCESSING METHOD, METHOD FOR MANUFACTURING BURRING PROCESSED ARTICLE, DIE FOR BURRING PROCESSING, BURRING PROCESSING DEVICE, AND BURRING PROCESSED ARTICLE

BURRING PROCESSING METHOD, METHOD FOR MANUFACTURING BURRING PROCESSED ARTICLE, DIE FOR BURRING PROCESSING, BURRING PROCESSING DEVICE, AND BURRING PROCESSED ARTICLE

A burring processing method including increasing a diameter of a prepared hole provided in a metal component and bending a part of the metal component to form a burring processed portion (110) including an upright portion (120) and a curved portion (130), wherein in a cross-section that passes throu...

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Hauptverfasser: YONEBAYASHI Toru, AZUMA Masafumi, OTSUKA Kenichiro, ITO Yasuhiro
Format: Patent
Sprache:eng ; fre ; ger
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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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creator YONEBAYASHI Toru
AZUMA Masafumi
OTSUKA Kenichiro
ITO Yasuhiro
description A burring processing method including increasing a diameter of a prepared hole provided in a metal component and bending a part of the metal component to form a burring processed portion (110) including an upright portion (120) and a curved portion (130), wherein in a cross-section that passes through an axis (cb) of the burring processed portion (110) and is parallel to the axis (cb) of the burring processed portion (110), a cross-sectional shape of the curved portion (130) on an inner surface of the curved portion consists of a curve, and a length of the curved portion (130) in a direction perpendicular to the axis (cb) of the burring processed portion (110) is at least 1.2 times a height of the curved portion in a direction parallel to the axis (cb) of the burring processed portion (110).
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subjects 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
title BURRING PROCESSING METHOD, METHOD FOR MANUFACTURING BURRING PROCESSED ARTICLE, DIE FOR BURRING PROCESSING, BURRING PROCESSING DEVICE, AND BURRING PROCESSED ARTICLE
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