Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Influence of a defined pre-load on the stress state in the precision cutting process
Einfluss einer definierten Vorspannung auf den Spannungszustand beim Genauschneiden
| CIRP Annals. Manufacturing Technology 62 (2013), Nr.1, S.271-274
ISSN: 0007-8506 |
| International Academy for Production Engineering (CIRP General Assembly) <63, 2013, Copenhagen> |
|
| Englisch |
| Zeitschriftenaufsatz, Konferenzbeitrag |
| Fraunhofer IWU () |
| punching; Streß; quality of cutting surfaces |
Abstract
Precision cutting is a single stroke shear cutting process to achieve a flush-cut amount between 60 and 90% of the sheet thickness by using a single-acting standard press. This paper presents a method to quantify the amount of required compression stresses based on theoretical and experimental precision cutting tests in which the stress state is overlaid by an additional radial pre-load on the strip. It was found that even a minimal pre-load of 30% of the yield stress can move the stress level to a state with lower tensile stress.