Modeling and comparing of steady thermal state at gear milling by conventional and environment-friendly cooling method

The paper considers the thermal processes in gear machining being focused on comparison of several cooling and lubricating techniques used at gear milling. The study represents just a part of a complex research concerning the implementation of environment-friendly techniques to gear milling. The issues in the field of stationary heat transfer were conducted using finite elements analysis, a widely applicable method in engineering using Algor software. Modeling of steady thermal state in the gears at the end of the milling process has been done using the results of experimental researches and consisted of several steps: creation of gear model based on geometrical parameters; setting of boundary conditions; modeling of stationary thermal fields in the gear after processing by five different cooling methods; graphs of strains variation and heat stress; processing and interpretation of results.