Characterization of the Gear Meshing Damping of Gear Drives with Plastic Gears Using the Forced Response Analysis for NVH Prediction
It is well-known that plastic materials have higher damping values than steel. So, the main question discussed in this paper is, how noise, vibration, and harshness (NVH) are influenced by the presence of different viscous gear meshing damping.
Plastic Gear Testing Methods—Characterization of Crucial Material Data Required for Reliable Design of Plastic Gears
An extremely wide selection of different plastic materials is currently available on the market. A major limitation, however, is a huge gap in gear-specific material data on these materials, a problem that has persisted for decades. This paper delves into the current state of the art in plastic gear testing, providing a comprehensive overview of employed testing methods, supplemented with case studies.
4D High Pressure Gas Quenching vs. Press Quenching
SECO/VACUUM’s 4D High Pressure Gas Quench (HPGQ) offers superior distortion control compared to press quenching. Both processes quench one part at a time, but the 4D HPGQ process avoids inconsistencies of liquid press quenching. With 4D HPGQ, every part is heated and quenched identically, maximizing precision and minimizing secondary machining.
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A reliable partner for power transmission critical gears and bevel sets
CATTINI, a leading Italian gear and bevel sets manufacturer with one of the broadest custom gear production capabilities in the industry, is now proud to be serving the Americas. Many multi-national heavy-duty vehicle and machinery OEMs have been choosing Cattini for years.
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