![]() ![]() Both the calculated and experiment data revealed that the force and torque increased with the cutting feed ascending and the cutting speed descending. A carbide gun drill force system had been established by the integration of forces on the main cutting edge, wear pad and outer diameter (OD) relief, and the mechanical equilibrium equations, applying specific energy model, which consisted of the geometry parameters, machining parameters, and material properties. This paper focused on the force system and performance of the welding carbide gun drill to cut AISI 1045 steel. Wang, Yongguo Jia, Wenxing Zhang, Jingsong Cutting speed and feed speed have a great influence on machining quality, and the cutting fluid pressure mainly affects the surface roughness.The force system and performance of the welding carbide gun drill to cut AISI 1045 steel The force system and performance of the welding carbide gun drill to cut AISI 1045 steel The shape and position accuracy of the entrance end is higher than that of the exit end, but the surface quality is the opposite. The results show that the cutting force decreases with the increase of cutting speed, and increases with the increase of feed speed the error between the theoretical and actual value is less than 10%. A numerical model of cutting force is established based on the mechanism of gun drill, and then the finite element simulation and processing test are carried out. In this paper, 42CrMo high strength steel is selected as the workpiece material. JO - International Journal of Precision Engineering and ManufacturingĪB - There are a lot of problems in the processing of deep hole gun drilling of high strength steel, such as difficulty in selecting machining parameters, unknown influence mechanism of machining parameters on drilling force, drilling temperature and machining quality. ![]() ![]() T2 - International Journal of Precision Engineering and Manufacturing TI - Research on Deep-Hole Drilling of High-Strength Steel Using Slender Gun Dril ![]()
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