Feature sponsored by Test & measurement
Kistler specifically designed this customised NCFN electromechanical joining system - with a very long stroke of 1,000mm - for Yuchai, the engine manufacturer based at Yulin (China).
function well, but they are energy-intensive - and above all, they are very noisy. Thanks to Kistler, we were able to opt for a better alternative - now, everything is much cleaner and quieter, and the whole process is far more orderly.” This is an enclosed production environment equipped with large numbers of air conditioning systems, so limiting the noise level is a critical factor. The new approach also yields benefits in terms of setting up the individual stations, and for maintenance: “The systems from Kistler are more compact and more flexible, and they are simpler to commission - so regular maintenance jobs are easier as well,” Liu continues.
FORCE-DISPLACEMENT MONITORING – WITH CUSTOMISED DESIGN Large numbers of NCFN and NCFH series modules from Kistler are deployed for joining processes at many different stations in both of Yuchai’s new production halls. They are used to assemble components such as steel balls, valve seats and guides, seals, intake hoppers and outlet openings. Production of engine components with press-fitted parts is now placed on an entirely new basis: integrated sensor-based force-displacement monitoring supplies two mutually independent indicators - force and displacement - to allow an accurate
assessment of the press-fit process and the mechanisms of the components involved. As Liu points out: “One simple test is sometimes not enough to detect potential defects and optimise the quality of the process. Thanks to systems from Kistler, we can now respond to challenges that may arise in many areas: part tolerances, machine instability, process errors, and other hidden factors that negatively impact process reliability. This means we can achieve - and maintain - very high quality in our press-fit processes.” As well as the advantages already mentioned,
Yuchai also benefits from a customised solution developed by Kistler - in the form of a unique joining module that is not available to any other Chinese engine manufacturer at present. This is an individual variant of the NCFN joining system featuring a very long stroke: 1,000mm as compared to the standard length of 400mm. Liu summarises: “Thanks to this tailor-made solution, we’ve been able to sustainably optimise our production. Kistler has demonstrated outstanding flexibility and technical understanding throughout the process. Systems from Kistler are simple to operate, and they’re highly reliable – so there’s virtually nothing to complain about!”
Kistler
www.kistler.com
Instrumentation Monthly September 2022
37
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