Simulation Analasis And Experimental Research Of Tub Vibratory Finishing For Different State Axis Parts

Vibratory finishing is a versatile process that plays an important part in many industries,especially the development of aero engines and heavy duty gas turbines.Vibratory finishing technology is a processing that can be processed by collision,scratching,extrusion and friction between workpiece and abrasive.It can be used for the edge chamfering,deburring,polishing,surface texture improvement,surface roughness reduction and stress elimination of the workpiece.Due to its inherent economy,flexibility,adaptability and environmental protection,the vibratory finishing technology has become an important way to improve the surface quality of a large number of industrial parts.For a long time,vibration finishing especially horizontal vibration finishing is lack of detailed and thorough research about fixing mode and fixing position of the workpiece.In this paper,the EDEM software is used to simulate and analyze the horizontal vibration finishing process,and based on the experimental research and force test,the quantitative analysis of the motion and the role of workpiece and abrasive in different fixed mode and fixed positions in X-Z plane is carried out.The main research of paper is as follows:1.The influence of workpiece’s fixing mode and fixed position on workpiece’s force is analyzed by hanging the motion parameters and position of workpiece in horizontal vibrating finishing.Compared with the dynamic variables such as normal contact force,tangential contact force and relative velocity between workpiece and abrasive,the influence law of fixed mode and fixed position on dynamic variables is compared.2.Based on the ZLC100 horizontal vibrating finishing equipment,and selecting the same location as the simulation,the aluminum alloy tube processing test is carried out.The influence of different fixed modes and fixed positions on the surface roughness normalized value R_a~*with the decreasing time of finishing time is analyzed.Except surface roughness normalized value R_a~*,comparing the surface micromorphology of the workpiece under different processing conditions,the optimal fixed mode and fixed position are found to achieve the ideal processing effect.3.Dynamic force sensor is used to test the force acting on the workpiece and abrasive at different positions in horizontal vibration finishing.The statistical analysis of the test results is carried out to analyze the influence trend of the fixed position of the workpiece on the force.4.The mean value of the normalized value R_a~*of the surface roughness of the tested workpiece with the drop rate of the whole time and the dynamic force test.Quantitative analysis of the relationship between the normalized value of the normalized value of the surface roughness of the workpiece R_a~*and the mean of the force.The analysis results show that in a certain range,the reduction rate of the normalized value of the surface roughness of the workpiece R_a~*has a two function relationship with the mean of the force.In this paper,EDEM discrete element simulation software and dynamic force sensor are applied to quantitatively analyze the influence of workpiece’s fixed mode and fixed position on the rolling force and the force between rolling block and workpiece in horizontal vibration finishing,and through the verification of the aluminum alloy tube processing experiment,the theory of horizontal vibrating rolling finishing is perfected,which fills the blank of quantitative research of workpiece fixing mode and fixed position in horizontal vibrating rolling finishing.