Holistic evaluation of titanium machining using cryogenic cooling (CO2)

该项目的主要目标是分析钛合金Ti6Al4V铣削过程中低温冷却的最低要求，以通过使用二氧化碳冷却改进冷却液供应来降低高温切割温度。与使用传统乳化液或油冷却的生产相比，刀具磨损将被减缓和减少，具有类似的生产率。通过特定的二氧化碳降雪冷却，切削区以一种可以排除热化学磨损的方式进行冷却。此外，还需要分析低温冷却时热机械载荷的变化对加工钛合金Ti6Al4V涂层硬质合金刀具使用行为的影响。作为补充，还开展了关于低温冷却的有益应用的生态和经济研究。

The main objective of the project is to analyze the minimum requirements of cryogenic cooling in the milling of titanium alloy Ti6Al4V to reduce high cutting temperatures by an improved coolant supply using CO2 cooling. The tool wear will, with similar productivity compared to production with conventional emulsion or oil cooling, be slowed and reduced. Through specific CO2 snow cooling the cutting zone is cooled in a way that thermochemical wear can be excluded. Furthermore, it is required to analyze the impact of changes in the thermo-mechanical load using cryogenic cooling on the operational behavior of coated carbide tools for the machining of titanium alloy Ti6Al4V. Complementarily, ecological and economically studies concerning the useful application of cryogenic cooling are be carried out.