## 1 Introduction  
Additive manufacturing technology directly produces parts without the need for specific tools, which can enhance the geometric freedom of the process and allow for the manufacturing of complex geometric shapes, as well as reduce time and production costs [1]. Compared with traditional manufacturing methods, additive manufacturing production costs and manufacturing cycles are reduced, and materials are well utilized. Therefore, this process has received significant attention from many industrial departments and has become a hot research topic [2; 3; 4; 5]. This study looks at Ti6 Al4V, a \(\alpha+\beta\) phase titanium alloy. Due to its good mechanical and thermochemical properties, such as specific strength and corrosion resistance, as well as its low cost, it is widely used in the aerospace industry, deep-sea operations, medical equipment, and value markets. Compared with parts made by traditional forging processes, additive-manufactured parts usually have more prominent physical and mechanical properties, which increase the difficulty of machining [6]. However, additive manufacturing technology inevitably produces defects, such as dimensional errors, deformation and high residual stress and cracking [7; 8; 9; 10], caused by layered and superimposed manufacturing, which cannot achieve the required accuracy, uniformity of material characteristics and surface quality. Thus, the metal parts of additive manufacturing are restricted in tolerance and critical applications. In order to enhance the performance of parts and debase the residual stress, metal parts made of additive materials almost always require post-processing. As a method of machining, milling can eliminate the step effect caused by the principle of layered manufacturing and ensure the accuracy of the processed parts [11]. Additive-subtractive composite manufacturing technology allows for the composite manufacturing of additive manufacturing and subtractive processing by synergistically combining the additive forming and subtractive processing processes in a single workstation. The relative advantages of each process canbe used to reduce manufacturing costs. Much research has been conducted with the aim of improving production efficiency [12; 13]. [PERSON] et al., reported the additive manufacturing precision milling composite manufacturing method, which can obtain better geometric accuracy and surface quality than selective laser cladding (SLM) [14]. [PERSON] et al., studied the effects of milling on the machining performance of selected melts and analyzed the effects of different factors on roughness and residual stress. The results show that the roughness and residual stress were significantly reduced, and the surface quality of the additive products was effectively improved [15]. [PERSON] et al., studied the effect of milling on the thin-walled parts produced by welding wire arc additive manufacturing. The results show that roughness is negatively correlated with cutting speed and positively related to the feed rate of each tooth. [16]. [PERSON] et al., proposed a finite element analysis model for turning Electron Beam Melted (EBM) Ti6 Al4V alloy. To calibrate and validate the model, the modified the Johnson-Cook (J-C) constitutive equation was used, combined with the mixed adhesive sliding friction model to model the tool friction. The model was implemented by cutting force and temperature measurements obtained under dry and low-temperature lubrication conditions [17]. [PERSON] et al., established a simulation model for turning Direct Metal Laser Sintering (DMLS) Ti6 Al4V alloy, and through the established user subroutines, predicted the cutting force and temperature during the machining process [18]. [PERSON] et al., compared the semi-finish machining of forged Ti6 Al4V and additively formed titanium alloys' cutting performance under conditions.