Research on High Speed Milling Accuracy of Titanium Alloy Guideway Structures in Additive Manufacturing
In response to the increasingly widespread application of titanium alloy additive manufacturing in the aerospace field,which leads to large machining deformation,difficult control of size and positional accuracy,poor surface roughness,and low machining efficiency due to its thin-walled characteristics,this article uses high-speed milling technology to conduct machining experiments on guide rail structural parts formed by titanium alloy powder additive manufacturing.The machining principle and characteristics of high-speed milling technology were analyzed,and the feasibility of processing titanium alloy additive manufacturing guide rail structural parts using this technology was verified through experimental design.The experimental results show that this process can achieve high-quality and efficient processing of titanium alloy powder additive manufacturing guide rail structural parts.The dimensions,positional accuracy,and surface roughness of the guide rail structure after processing under different process parameters were compared.The guide rail structure dimensions,positional tolerances,and surface roughness obtained under higher cutting speeds were better,and the surface roughness was also better,Within the range of experimental parameters,while the cutting speed is 84.78 m/min and the cutting depth is 0.2 mm,the optimal roughness value after machining is Ra1.944 μm.
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