The Heat Transfer Analysis Of The High-speed Cutting Tool

As the theoretical fundamental of the high-speed cutting (HSC), the research of the mechanism of HSC is the foundation of the application and development of the HSC technology. The research of the cutting heat flux has very important theoretical and practical significance. High efficiency and high precision as the basic characteristics of the high-speed machining has been to become one of the hot spots of research, and cutting temperature is reflected in high-speed machining process is an important indicator of physical properties, is the impact of tool wear, tool life and surface products The quality and integrity of the process an important factor. Considering that there are very few researching about the cutting tool, the paper carries out the heat flux of the cutting too in the HSC by numerical method. Numerical method is useful in the study of the mechanism of the HSC. It is effective to investigate high speed cutting using numerical method. In this way, not only the disadvantages of the experiments can be conquered, the chip formation, cutting forces, temperature, strains, strain rates, etc in the processes of machining can also be predicted quantitatively. Besides, numerical method is significant in saving time and sources, improving the precisions.In the paper, we make the research about the cutting heat generation and transmission, the temperature of the cutting system. The paper presents a theory for solving method of cutting tool temperature field. The use of finite element analysis software DEFORM simulates the HSC process of the AISI-1045 steel. The paper gets the temperature field about the tool, the distribution of cutting heat and the analysis of the tool thermal stress. Experimental results obtained are consistent with the literature conclusions. The paper achieved complementary advantages between the common software DEFORM and ANSYS, Savings in workload and working hours. This is for the subsequent numerical simulation provides a viable ideas and methods.The paper analysis the cutting process in the distribution of heat,different heat transfer coefficient to the tool heat flux, gasket material on the impact of tool heat transfer. This provides a viable ideas and methods for the subsequent numerical simulation. This study results show that the High Speed Machining can effectively reduce the transmission of the work piece and tool cutting heat ratio, will increase productivity and processing precision. In the actual metal cutting process, it is helpful to reducing the overall temperature of the tool and suppressing the tool's chemical activity at high temperatures to use the effective cooling method or the higher heat transfer coefficient. In the High Speed Machining progress, we should pay enough attention on the cooling and when we choose the gasket we should consider the strength cost in the first, and then choose the higher heat transfer coefficient in the reasonable case.