Internal-cooling method due to its numerous advantages has been used during the machining of hard to cut and difficult to machine materials. Cooling channels developed in the cutting inserts, drills, end mills and grinding wheels are used for the heat removal which is concentrated at a smaller region during machining process. So, these cooling channels play a vital role in decreasing the temperature and wear rate of the tools. The heat generation and transfer rate depend upon the physical configuration of the cooling channel. This research work presents novelty in the concept of developing internal cooling channel cutting inserts with different profiles. Three different profiles have been developed to investigate cooling effect on the turning tool insert with different shapes. The results have been compared with the standard tool having no cooling channel. Computational Fluid Dynamics (CFD) has been used to simulate temperature rise for all profiles. A temperature drop of 188 K has been found for internally cooled cutting insert in comparison to the standard tool having no channel. It has also been found that the temperature difference of range 20 K–88 K can be achieved by varying the profile of the channel. Besides this, an increase in the inlet pressure of the cutting fluid has been found to make the coolant profile more efficient in terms of heat removal. Through the velocity vector results, it has been found that with more flow velocity of coolant inside the channel more heat transfer takes place. Turbulence Kinetic Energy (TKE) results showed that the heat transfer rate can be increased with an increase in the TKE value which in turn depends upon the profile of the coolant flow channel. This CFD study in turn has laid the platform for setting the optimum parameters during the turning of Titanium alloy with internal cooling channels.

内冷方法因其众多优点而被用于加工难切削和难加工材料。在切削刀片、钻头、立铣刀和砂轮中开发的冷却通道用于在加工过程中集中在较小区域的热量去除。因此，这些冷却通道在降低刀具温度和磨损率方面起着至关重要的作用。热量产生和传递速率取决于冷却通道的物理配置。这项研究工作提出了开发具有不同轮廓的内部冷却通道切削刀片的概念的新颖性。已经开发了三种不同的轮廓来研究不同形状车刀刀片的冷却效果。结果已与没有冷却通道的标准工具进行了比较。计算流体动力学 (CFD) 已用于模拟所有剖面的温升。与没有通道的标准刀具相比，内部冷却切削刀片的温度下降了 188 K。还发现通过改变通道的轮廓可以实现 20 K-88 K 范围内的温差。除此之外，已发现增加切削液的入口压力可使冷却液分布在散热方面更有效。通过速度矢量结果，已经发现通道内冷却剂的流速越大，传热就越多。湍流动能 (TKE) 结果表明，热传递率可以随着 TKE 值的增加而增加，而这又取决于冷却剂流动通道的轮廓。该 CFD 研究反过来为设置内部冷却通道钛合金车削过程中的最佳参数奠定了平台。