Surface Structuring of Forming Tool Surfaces by High-Feed Milling

Freiburg, D.1, a; Löffler, M.2, b; Merklein, M.2, c; Biermann, D.1, d

1)
Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 303, 44227 Dortmund
2)
Lehrstuhl für Fertigungstechnologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 13, 91058, Erlangen

a) freiburg@isf.de; b) Maria.loeffler@fau.de; c) Marion.Merklein@fau.de; d) biermann@isf.de

Kurzfassung

Structuring of tool surfaces is used in various industrial applications to improve processes. One example is the sheet-bulk metal forming (SBMF) which combines the advantages of bulk and sheet metal forming. SBMF enables the production of sheet metal components with functional elements. Due to the complex load conditions an uncontrolled material flow occurs, which has a negative effect on form filling accuracy. By using adapted tribological conditions on tool surfaces it is possible to control the flow of the material. For this reason, forming tools have to be prepared with suitable surface structures. Most forming tools are characterised by large areas and are made out of hardened high-speed steel, which makes it difficult to machine surface structures. Within this study, a new approach for machining surface structures on large surface areas is presented. Therefore, the factors of influence regarding the achievable surface characteristics are analysed. In a second step wear and process forces for the structuring process are investigated. Finally, the operational performance of selected surfaces is conducted in forming tests.

Schlüsselwörter

Forming, Milling, Surface modification

Veröffentlichung

In: 7. WGP-Jahreskongress, 5.10.-6.10. 2017