Advanced vibration-assisted machining – VAM

• considerable improvements of tool life and chip breaking are possible compared to conventional VAM methods 
• improved chip breaking, optimized chip removal, reduced cutting forces, longer tool life
• improved quality of the finished workpiece – reduced fraying, delamination, chipping at tool exit
• particularly efficient for machining of aircraft material, like CFRP and stacks

Innovation level:

• design and operation of a vibrating spindle with a hydraulic actuator for the z-axis and piezoelectric actuators for the x- and y-axis
• allowing for highly effective low-frequency oscillations with amplitudes of about 100 to 400 μm along the z-axis

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Surface functionalization by deterministic machine hammer peening

• specific manipulation of structure (roughness, smoothness, micro-geometry) and hardness as well as the magnetic, thermal, electrical, and chemical properties of technical surfaces
• reduction of flow resistance
• replacement of manual polishing processes and/or substitution of thermal hardening processes
• synchronous monitoring of material characterization and detection of material inhomogeneities during the process of machining
• invisible 3-dimensional coding option for components
• due to an automated machining process, integration into existing process chains – without reclamping the workpiece

Innovation level:

• unique actuator system allowing for control and monitoring of the entire mechanical surface treatment process in-lin
• due to the highly dynamic short-stroke linear reluctance motor each single movement of the hammer can be accurately set and controlled
• acceleration values of available systems are exceeded by a factor of ten and more
• offering protection against undesirable kickback forces on machine components

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Machining for highest quality of CFRP and Inconel components

• Optimizing the production of CFRP parts
• High-speed machining of Ni-based alloys, like Inconel

Level of expertise:

• IFT at TU Wien has more than 40 years of experience with innovations in the field of machine tools and machining
• expertise from a large number of scientific projects and cooperation enable highly competent consulting and efficient implementation of innovations
• comprehensive improvement of individual manufacturing processes
• access to a diverse network of experienced tool and machine manufacturers
• trustful and efficient co-operation
• rapid implementation of innovation idea

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Contact

Univ.Prof. Dr. Friedrich Bleicher and Peter Heimerl