Optimierung von NC-Programmen zur Minimierung von Werkzeugverschleiß


This project is being funded within the BMBF KMU-Innovativ framework (Förderkennzeichen: 01IS17018A)

AiF Projekt GmbH
Tschaikowskistrasse 49
13156 Berlin
E-Mail zim@aif-projekt-gmbh.de


During the cutting process deformation and friction process can occur at the cutting edge. The materials used in cutting tools have to resist high compressive stresses, high cutting velocities and high temperatures, whereby the most important mechanics causing tool wear are abrasion, adhesion, tribochemical reactions and surface defects.

Mechanical or abrasive wear occurs unders low as well as high cutting velocitites. Eventually tool wear will cause a failure of the tool. When tool wear reaches a certain level, the tool or the cutting bits need to be replaced, to maintain the desired cutting ability.

When observing tool wear, it is clear that not only cumulative total tool wear is relevant, but also wear patterns and locally occuring tool wear plays a crucial role and can have a major impact on overall tool longevity. There are severals methods to provide for an equal tool wear hence increasing the usability and longevity of the tool.

To allow for a seamless computation of the tool wear constant tool part interaction has to be determined to obtain contact conditions and derive wear patterns. The knowledge of these contact conditions allow to compensate for local wear and adapt the tool path to provide for a more equally distributed tool wear.


  • Computation of tool wear during milling process
  • Increased tool longevity
  • Broad variety of tools shapes supported


  • Optimized tool path program with reduced local tool wear
  • Increased tool longevity
  • Optimized tool orientation to reduce local stress on tool
  • Increased efficiency during milling process

The main goal of the project »OptiWear« is the development and implementation of a software tool capable of analysing and optimizing tool orientation for a milling process with regard to reduced tool wear and increased tool longevity.


The targeted software solution provides the following benefits:

  • Optimized tool path program with reduced local tool wear
  • Increased tool longevity

Optimized tool orientation to reduce local stress on tool

Zeitplan des Projekts

Projektstart -Juli 2019

Projektende - Juni 2021


Das Projekt wird zusammen mit vier Partnern durchgeführt:

Fraunhofer IPT is providing their technological expertise inn terms of machining capabilities and additive manufacturing for direct deposition modeling technologies.

Aachener Werkzeugbau Akademie GmbH is providing based on the input of the technology experts the algorithms for encapsulating the structures in algorithms which allow a procedural generation during computation, omitting the need for a persistent direct data representation

Knowledge Exchange AG is providing in this project their PLM system and designing adequate interfaces to realize a seamless representation of the desired geometry along the process chain.

Reuth GmbH is providing in this context their technological expertise around additive manufacturing and especially in terms of expedient manufacturable lattice structures and topographies.


Dr.-Ing. Riaz Ur-Rehman

Aixpath GmbH Henricistraße 50 52072 Aachen

+49 241 9978 3351