Abstract
English
Highlights
The gears machining, with the application of a cutting fluid supplied with a minimum flow rates (MQL - Minimum Quantity Lubrication) is a technology still under development
The previous investigations of the gear hobbing, e.g. [11], proved that among all the cutting parameters the cutting speed vc has the greatest impact on tool wear
This is because the wear of hob leads, during the machining process, to the change of the cutting conditions, which in turn leads to an increase of cutting forces
Summary
The gears machining, with the application of a cutting fluid supplied with a minimum flow rates (MQL - Minimum Quantity Lubrication) is a technology still under development. In industrial applications, it is still a novelty. This concerns, among other manufacturing processes, hobbing which is the most popular method of machining gears. In this method, the allowance is removed by many cutting teeth distributed on the hob circumference. In the gear hobbing, cutting teeth are unevenly loaded and this results in uneven wear distribution on particular hob teeth. Out of the total number of hob teeth, only a part of them remove work material, and only few of them present maximum wear land [3]. When tool wear reach critical values even at one hob tooth the hob is regarded as dull
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