SolidTool - Performance increase of solid carbide end mills through process chain optimization

Key Info

Basic Information

01.11.2018 to 30.04.2021
Organizational Unit:
Chair of Manufacturing Technology, Cutting Technology
German Federation of Industrial Research Associations AiF, Federal Ministry for Economic Affairs and Energy BMWi

Research partner

    • Jongen GmbH
    • Ceratizit Austria
    • Gühring KG
    • Franken GmbH
    • Oerlikon Balzers Coating GmbH
    • AKE Knebel GmbH & Co. KG
    • ISCAR GmbH
    • Eckold GmbH
    • Graf Technik GmbH
    • Bilz GmbH
    • Inovatools Eckeerle & Ertel GmbH
    • Sandvik
    • Gebrüder Saacke GmbH etc.

Funding Information

The IGF project No. 20087 N of the FKM was funded by the Federal Ministry for Economic Affairs and Energy via the AiF within the framework of the program for the promotion of joint industrial research and development (IGF) on the basis of a resolution of the German Bundestag.


Coated solid carbide end mills are used, among other applications, in mechanical engineering and the automotive industry. Despite the extensive and intensive use of these milling tools, the level of knowledge about the effects of the production-related surface and edge zone properties of solid carbide end mills on their performance was low at the beginning of the project. In addition, the interrelationships and interactions of the respective manufacturing processes along the process chain for manufacturing these tools were insufficiently known. Since the production-related tool properties of the milling cutters were not optimally matched with regard to their application behavior, the performance potential of the cutting material had not yet been exhausted.

The aim of the project was to create a knowledge base for the production of high-performance milling cutters whose application behaviour exceeds that of conventionally produced milling cutters by methodical research into the influence of the production-related surface and edge zone properties of coated solid carbide milling cutters on their functional behaviour and their development along the process chain. In order to achieve the project objective, different surface and edge zone properties of the tools were generated by varying the manufacturing processes in the process sequence and the development of the production-related tool characteristics along the process chains were analysed. The tool characteristics were then investigated with regard to their influence on the milling cutter’s application behaviour. Based on the results of the tool life investigations and the findings from the analysis of the production history, design approaches for an optimized production process sequence for the manufacture of solid carbide end mills were then derived.

The aim of the research project was achieved.