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Application filed by Oestreicher PuratorfiledCriticalOestreicher Purator
Priority to AT48777ApriorityCriticalpatent/AT354829B/de
Publication of ATA48777ApublicationCriticalpatent/ATA48777A/de
Application grantedgrantedCritical
Publication of AT354829BpublicationCriticalpatent/AT354829B/de
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Shaping Metal By Deep-Drawing, Or The Like
(AREA)
AT48777A1977-01-271977-01-27Verfahren und vorrichtung zur herstellung eines wendelflaechenfoermigen werk- stueckes
AT354829B
(de)