Design And Experimental Study Of Ultrasonic Cylindrical Honing Device For Difficult-To-Process Material Cylindrical Pieces

Titanium and stainless steel and other difficult-to-process materials because of its ultra-high strength,high hardness,fatigue and other superior material properties,are increasingly used in the machinery industry.However,the above materials are difficult to obtain good surface quality after processing by ordinary means of processing.As a kind of precision and special processing,honing has a good processing effect on difficult-to-process materials.Ultrasonic honing technology maintains the advantages of honing and also overcomes the problem that the whetstones are easy to block in common honing,further improve the processing accuracy and processing efficiency.The mainly processing objects of conventional ultrasonic vibration honing technology are inner surface.However,in the actual processing the outer surface of the shaft part often also requires a higher surface quality.In view of such research status quo,the machining mechanism of ultrasonic vibration cylindrical honing is studied in this paper.At the same time,a set of experimental devices is designed with practical processing and showed in the paper.And the experiments were carried out with TC4 titanium alloy and SUS304 stainless steel as the experimental objects.The main contents of this paper and the results obtained are as follows:1.Firstly,the force of single abrasive grains in grinding is decomposed,the grinding force is modeled,and its mathematical expression is solved;Secondly,the motion form and processing mechanism of the power ultrasonic cylindrical honing are analyzed,and the model of ultrasonic cylindrical honing abrasive material removal in radial vibration is analyzed and established.2.The design of key components.According to the frequency equation and the boundary condition,the piezoelectric transducer is designed.The size parameter of the ultrasonic horn is determined by the wave equation and the particle vibration displacement function.The size of the honing head is determined according to the integrated design idea.The design of the above parts is simulated by ANSYS to confirm its rationality.According to the structural parameters of the test lathe,the loading scheme of the experimental device is determined.3.The orthogonal experiments were performed by using the designed experimental device,the influence of the experimental parameters such as oil particle size,workpiece rotation speed and honing depth on the surface quality of ordinary honing can be analyzed by an orthogonal test.After the introduction of ultrasonic vibration,a comparative test will be carried out.The experimental data of the two groups were recorded to study the effect of ultrasonic vibration on the surface quality of the workpiece,and the influence of the ultrasonic amplitude was also analyzed.