An ultrasonic peening-type integrated machining method for cutting and extrusion includes: applying transverse ultrasonic vibration or a vibration component, which is vertical to a cutting speed direction to a cutting tool on a machine tool; setting a cutting parameter and an ultrasonic vibration parameter such that a dynamic negative clearance angle is generated in a cutting procedure and a flank face of the cutting tool conducts ultrasonic peening extrusion on the surface of the workpiece; setting an extrusion overlap ratio; setting a wear standard of flank faces extruded by the cutting tool; controlling a vibration cutting trajectory phase difference of the cutting tool during two adjacent rotations; and turning on the machine tool in order to ensure that cutting and surface extrusion strengthening of the workpiece are completed in one procedure without separate strengthening procedures. The method conducts extrusion strengthening on the surface of the workpiece while cutting the workpiece.

Ultrasonic peening-type integrated machining method of cutting and extrusion

The invention provides an ultrasonic rolling device and method, and relates to the field of metal processing. The ultrasonic rolling device comprises a rotary clamp and a rolling mechanism, wherein the rolling mechanism comprises a supporting mechanism, a driving mechanism and an executing mechanism, the driving mechanism and the executing mechanism are jointly installed on the supporting mechanism, the executing mechanism comprises an amplitude-change rod and a rolling head installed on the amplitude-change rod, the working end of the rolling head protrudes out of the outer circumferential surface of the amplitude-change rod, the driving mechanism drives the working end of the rolling head to vibrate through the amplitude-change rod, the supporting mechanism drives the executing mechanismto axially reciprocate along a rotating clamp, the position relationship between a rolling head and an amplitude-change rod of traditional ultrasonic rolling is changed, ultrasonic rolling is carriedout on an inner hole of a workpiece larger than the radial size of a part of the rolling head, the initial static pressure is measured by matching with a dynamometer, the initial static pressure is more accurately applied to the inner hole of the workpiece through the rolling head, and the pressure in the rolling process can be monitored.

Ultrasonic rolling device and method

The invention discloses an ultrasonic energy field device for improving the surface quality of precise foils. The ultrasonic energy field device comprises an upper working roll ultrasonic energy fieldapplying device, a lower working roll ultrasonic energy field applying device, an upper working roll and a lower working roll, wherein each of the upper working roll ultrasonic energy field applyingdevice and the lower working roll ultrasonic energy field applying device comprises a conductive slip ring used for receiving a high-frequency electric signal generated by an ultrasonic power supply in an external ultrasonic energy field device, a transducer used for converting an electric signal into ultrasonic vibration and transmitting the ultrasonic vibration to a vibration transmission rod and an amplitude transformer which are connected with the ultrasonic transducer, the vibration transmission rod used for transmitting vibration waves, the amplitude transformer used for amplifying the vibration wave and connected with a working roller, and a dynamic servo hydraulic system used for adjusting the position of the working rollers. By means of the technology, the surface roughness of themanufactured foils is smaller, the residual stress is smaller, and the corrosion resistance is higher.

Ultrasonic energy field device for improving surface quality of precise foils

An ultrasonic roller burnishing system comprises a roller and a controller. The roller is configured to be pressed against a surface of a workpiece to a pressing depth, roll on the surface at a feed rate, and vibrate at an ultrasonic frequency under a back pressure. The roller is pressed and rolled by a motion unit which is driven by a drive motor. The vibrating of the roller is driven by an ultrasonic vibration unit with an input current inputted thereinto. The controller is configured to adjust at least one of the pressing depth, the back pressure, the input current and the feed rate based on an expected residual compressive stress and a real time output power of the drive motor, to generate a residual compressive stress in the workpiece which is in an expected range predetermined based on the expected residual compressive stress.

Wickert Thomas Edward

Papers

Ultrasonic roller burnishing system and method, and method for machining component