BIMETALLIC MICRO-PUNCHES FOR MICRO-BLANKING PROCESSES

• DOI: 10.24425/118904
• Publication Date: 2023-07-20T16:56:49Z
• Authors: W. Presz; R. Cacko
• Keywords: Blanking; Bimetallic strip; Materials processing; Industrial chemistry

Rapid development of micro-machines, which partly needs metallic micro-parts, is nowadays a fact.A very promising way micro-parts manufacturing micro-blanking.For quite complicated 2D shapes, like micro-gears, dies might be rather easy manufactured by wire-cutting.Production micro-punches seems to much more difficult.In this article solution consisting two components: punch body based on standard and mechanically joined end -bimetallic micro-punch -is proposed.Joining process the extrusion, after shaped must hardened finally sharpened.Within work an experimental stack-up equipped with special measuring system unique flexible micro-tools was developed.Simplified processes bimetallic completed as well FEM analysis.