Comparison and analysis of double coils and single coil magnetic pulse-assisted micro-punching
To further study the magnetic pulse-assisted micro-punching process,the method of using double coils instead of single coil magnetic pulse-assisted micro-punching was proposed.Comparative experiments were used to analyze the macroscopic effect of forming holes and the quality of punching sections.Thus the forming rate and advantages and disadvantages of punching section quality of double coils and single coil were compared.The results show that in terms of the macroscopic effect of forming holes,the hole forming rate of double coils is much higher than that of single coil,and the application of double coils improves the energy utilization rate of magnetic pulse-assisted micro-punching.The largest proportion of bright bands on the punching section of single coil magnetic pulse-assisted micro-punching is only 15.3%,while the largest proportion of bright bands on the punching section of double coils is as high as 59.6%.The punching quality of double coils is much better than that of single coil.
magnetic pulse-assisted formingmicro-punchingdouble coilssection quality
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