Products made of titanium and its alloys are widely used in modern areas like the mechanical engineering, instrument making, aerospace and medical sector. High strength and low thermal conductivity are the causes of difficulties with the machinability of these alloys. It is important to find ways to increase machinability by cutting titanium alloys. One way to implement this is to apply various methods of cooling on workpieces of titanium alloys and on cutting tools during machining. In this review article, an extensive analysis of the literature on such cooling techniques as dry, conventional cooling system, minimum quantity of lubricant (MQL), minimum quantity cooling lubrication (MQCL), cryogenic lubrication, and high-pressure cooling (HPC) is performed. The following groups of Ti alloys are considered: high-strength structural and high-temperature Ti alloys, intermetallic compounds, pure titanium, as well as composites CFRPs/Ti alloys. For the processes of turning, milling, drilling, and grinding, etc. it is shown how the type of cooling affects the surface integrity include surface roughness, tool wear, tool life, temperature, cutting forces, environmental aspects, etc. The main advantages, disadvantages and prospects of different cooling methods are also shown. The problems and future trends of these methods for the machining of Ti and its alloys are indicated.

钛及其合金制成的产品广泛用于现代领域，例如机械工程，仪器制造，航空航天和医疗领域。高强度和低导热率是这些合金的机械加工性困难的原因。重要的是找到通过切削钛合金来提高可切削性的方法。一种实现方法是在加工过程中对钛合金工件和切削工具采用各种冷却方法。在这篇评论文章中，对诸如干式，常规冷却系统，最小润滑剂量（MQL），最小量冷却润滑剂（MQCL），低温润滑和高压冷却（HPC）等冷却技术的文献进行了广泛的分析。执行。考虑以下几组钛合金：高强度结构和高温钛合金，金属间化合物，纯钛以及复合材料CFRP / Ti合金。对于车削，铣削，钻孔和磨削等过程，显示了冷却类型如何影响表面完整性，包括表面粗糙度，工具磨损，工具寿命，温度，切削力，环境因素等。主要优点还显示了不同冷却方法的缺点和前景。指出了这些方法加工Ti及其合金的问题和未来的趋势。温度，切削力，环境因素等。还显示了不同冷却方法的主要优点，缺点和前景。指出了这些方法加工Ti及其合金的问题和未来的趋势。温度，切削力，环境因素等。还显示了不同冷却方法的主要优点，缺点和前景。指出了这些方法加工Ti及其合金的问题和未来的趋势。