## 1 Introduction
The cutting experiments show that a micro-texture has the effect of improving cutting performance, reducing cutting force, and reducing cutting temperature. [PERSON] [7] uses the Advantedge software to simulate the turning process of cemented carbide cutting tools with a groove texture. The authors report that the insertion of a groove texture significantly reduces the cutting temperature. With the increase of the texture spacing, the cutting temperature increases slowly; with the increase of the groove width, the cutting temperature initially decreases, and then increases. [PERSON] [8], in order to study the influence of micro-texture on cutting force and cutting temperature, prepared micro-texture tools by the laser processing method. Through comparative tests, it is concluded that micro-texture tools can effectively reduce the cutting force and cutting temperature compared with non-texture tools. [PERSON] and [PERSON] [9] have studied the influence of micro-texture on cutting performance of trapezoidal groove surface with different texture parameters by finite element simulation. The results show that reasonable texture parameters can effectively improve the friction between cutting tool and chip and promote heat dissipation, thus achieving the effect of reducing the cutting force and cutting temperature. [PERSON] and [PERSON] [10] have carried out high-speed cutting experiments on SUS304 stainless steel using micro-texture tools and non-texture tools. The cutting performance of micro-texture tools has been studied. The research found that the micro-groove texture and the pit texture can effectively reduce the friction coefficient of the tool surface, thus reducing the cutting force and the cutting temperature; a micro-pit texture can obviously improve the surface quality. [PERSON] and [PERSON] [11] have established many different types of micro-texture hard alloy models and conducted three-dimensional friction simulation tests of different types of surface micro-texture cemented carbide and titanium alloy by finite element simulation software. The results show that the groove texture can increase the heat dissipation area and significantly reduce the friction temperature, and the diamond pit texture can control the temperature increase during the friction process. To sum up, the blunt radius of the cutting edge and the micro-texture parameters are important in improving the machinability of titanium alloys and reducing cutting temperatures. However, there are few studies on the combined influence of these two factors on the cutting of titanium alloys. Therefore,studies are urgently needed to investigate the influence of cutting-edge form and texture parameters on the processing properties of titanium alloys. In this work, a novel milling temperature model is proposed, which relies on the method of micro-element approximations and refers to the generation and conduction law of cutting heat. The proposed model is established for titanium alloy milling processes using ball end milling cutters under the action of an action of blunt edge and analyze its influence mechanism. The influencing mechanisms of different blunt radius and texture parameters on milling temperatures are analyzed. Furthermore, different blunt radius and micro-texture parameters are used to simulate and test the titanium alloy milling process; the influence of different blunt radius and micro-texture parameters on milling temperatures is also analyzed. According to the simulation and experimental results for each set of parameters, the optimal combination of the blunt radius of the cutting edge and texture parameters is obtained.