CH595154A5CH428976ACH428976ACH595154A5CH 595154 A5CH595154 A5CH 595154A5CH 428976 ACH428976 ACH 428976ACH 428976 ACH428976 ACH 428976ACH 595154 A5CH595154 A5CH 595154A5
Authority
CH
Switzerland
Application number
CH428976A
Inventor
Claus Noteborn
Guenther Puetz
Barthel Steckemetz
Original Assignee
Kernforschungsanlage Juelich
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kernforschungsanlage JuelichfiledCriticalKernforschungsanlage Juelich
Publication of CH595154A5publicationCriticalpatent/CH595154A5/xx
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
B23D27/00—Machines or devices for cutting by a nibbling action
B—PERFORMING OPERATIONS; TRANSPORTING
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
B21D28/00—Shaping by press-cutting; Perforating
B21D28/24—Perforating, i.e. punching holes
B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
B21D28/265—Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template
B—PERFORMING OPERATIONS; TRANSPORTING
B26—HAND CUTTING TOOLS; CUTTING; SEVERING
B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING