October 2011
DIN 6932
ICS 77.140.50
D
Supersedes DIN 6932:2010-01
Design rules for stamped steel parts, English translation of DIN 6932:2011-10
Gestaltungsregeln für Stanzteile aus Stahl, Englische Übersetzung von DIN 6932:2011-10 Règles de développement pour pièces découpées et embouties en acier, Traduction anglaise de DIN 6932:2011-10
Document comprises 18 pages
Translation by DIN-Sprachendienst.
In case of doubt, the German-language original shall be considered authoritative.
No part of this translation may be reproduced without prior permission of DIN Deutsches Institut für Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, Copyright Deutsches Institut für Normung e. V. right of sale for German Standards (DIN-Normen). has the exclusive
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DIN 6932:2011-10
A comma is used as the decimal marker.rd ......................................................................................................................................................... 3 1 2 3 4 4.1 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 4.2.7 4.2.8 4.2.9 4.2.10 4.3 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.7 4.4 4.4.1 4.4.2 4.4.3 4.4.4 4.4.5 4.4.6 4.4.7 4.4.8 4.4.9 5 Scope ................................................................................................................................................. 4 Normative references ....................................................................................................................... 4 General rules ..................................................................................................................................... 4 Design rules ...................................................................................................................................... 4 General ............................................................................................................................................... 4 Design rules for cut parts ................................................................................................................ 4 Basic principles ................................................................................................................................ 4 Shape of pierced holes .................................................................................................................... 5 Hole diameter .................................................................................................................................... 5 Notching ............................................................................................................................................ 6 Piercing and notching on one side ................................................................................................. 6 Curvatures ......................................................................................................................................... 6 Curvatures on strip lengths ............................................................................................................. 6 Distances ........................................................................................................................................... 7 Oblique cutting.................................................................................................................................. 7 Positioning guard ............................................................................................................................. 8 Design rules for bent parts .............................................................................................................. 8 Basic principles ................................................................................................................................ 8 Bending radii ..................................................................................................................................... 8 Internal radius/External radius ........................................................................................................ 8 Preparation for bending ................................................................................................................... 9 Minimum leg length ........................................................................................................................ 10 Minimum distance from the bending axis .................................................................................... 11 Relief holes ...................................................................................................................................... 11 Design rules for deep-drawn parts ............................................................................................... 11 General ............................................................................................................................................. 11 Earing ............................................................................................................................................... 11 Radii of curvature ........................................................................................................................... 12 h /d ratio............................................................................................................................................ 12 Buckling/Wrinkling ......................................................................................................................... 13 Bottom flatness ............................................................................................................................... 13 Material elongation/Material thickening ....................................................................................... 14 Box-shaped deep-drawn parts ...................................................................................................... 14 Plunging ........................................................................................................................................... 15 Dimensioning .................................................................................................................................. 15