Blum-Novotest, a leading supplier of innovative and high-quality measuring and testing technology, will be featuring high-precision dynamic measurement systems for brake disks on its stand at the CONTROL show in Stuttgart (hall 3 stand 3406).
"The mostly tactile data acquisition is a dynamic process with the brake disk rotating. This means the systems simultaneously measure parameters including diameters, heights and wall thicknesses by 20 different probes for each", explains Peter Mösle, Sales Manager of the Measuring and Testing Technology division. "Under extreme conditions such as casting dust or temperature fluctuations, repetition accuracies of within 1 µm can be achieved. This demands temperature recording and compensation for the workpiece and the machine. The systems are designed for three-shift operation, attaining ultra-short cycle times of less than 20 seconds."
In addition to geometric features, they assess true running and concentricity, as well as other shape and position deviations. The qualitative assessment of brake disks, as vital safety components, is implemented by BLUM's own measuring and evaluation software UMS. The integrated Q-DAS interface links to the higher-level quality data acquisition system.
Increasing demands in terms of precision and productivity in production are also imposing higher demands on in-production quality assurance procedures. Blum-Novotest multipoint measuring machines provide high-precision 100% inline testing of brake disks. Integration into machining sequences permits process control with no loss of primary processing time. Based on trend recognition and defined intervention thresholds, the BLUM software calculates machine correction data for each characteristic feature even before tolerances are infringed. The processing machine is automatically re-adjusted to the centre of the tolerance band by way of a correction interface. The closed control loop means that the specified tolerances can be optimally maintained with no manual intervention.