Page 48 - Research Report 2021 - Institut für Leichtbau und Kunststofftechnik

LiWeKo

Weight-reduced lightweight clamping devices, tools and
components for efficient, highly dynamic machining processes

Machining machines are among the largest energy consumers in industry. Period
Increasing the energy efficiency of machining processes is therefore of the 01.10.2019 – 30.09.2022
highest relevance. In precision grinding, for example, the energy demand of
conventional standard grinding machines can be significantly reduced simply Project management
by increasing the machining speed. At present, however, undesirable vibra- Prof. Dr.-Ing. habil. Maik Gude
tions occur at high speeds due to the large rotational mass and low damping
capacity of the materials used up to now. As a result, the machine compo- Contact
nents are heavily stressed and the required surface quality or dimensional Dr.-Ing. Thomas Behnisch
accuracy on the workpiece cannot be guaranteed. The objevtive of the LiWeKo Andreas Borowski
joint project is therefore to reduce the total rotational mass by means of
weight-reduced clamping devices, tools and peripheral parts based on mod- Project partners
ern lightweight materials and manufacturing methods. This should make it • QSIL Ingenieurkeramik GmbH
possible to increase the circumferential speed and thus achieve a significant • CONNOVA Deutschland GmbH
reduction in the energy required for precision grinding processes (up to 30 %). • LIGHTWAY GmbH & Co. KG
The tool system of a standard grinding machine is used as a demonstrator
to prove the applicability of the developed tool system (consisting of grinding Funding
wheel, holder for clamping the grinding wheel and tool spindle) as well as the
reduced energy requirement.

Federal Ministry for Economic Affairs
and Climate Action (BMWK): 7th Energy
Research Programme of the Federal
Government “Innovations for the Energy
Transition”
Funding code: 03EN2015D
Managed by:

(a) Comparison of the vibration displacement of a steel reference shaft and the CFRP
hybrid shaft, (b) Clamped CFRP hybrid shaft in the rotational test environment.
Projektträger Jülich (PTJ)

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