36results about How to "Reduce plastic deformation resistance" patented technology

The invention relates to a micro-blanking forming device and a forming method, in particular to a high-frequency auxiliary micro-blanking forming device and a method for a foil plate. The device and the method aim at solving the problems in the existing high-precision blanking forming of the foil plate that an interval between a female die and a male die is small, a blanking force is significantly increased by a size effect, and the dies are badly worn and have short service lives. The device comprises a female die fixing plate, a lower bolster and a lower die plate that are sequentially connected from the top down, wherein an upper die plate and a male die fixing plate are sequentially arranged above the female die fixing plate; a female die is embedded into the middle part of the upper surface of the female die fixing plate; a vibration component and a punch are sequentially mounted in the male die fixing plate from the top down in an inserting manner; a middle line of the punch is coincided with that of the female die; the vibration component is connected with a high-frequency power source; a guide sleeve is mounted on the upper surface of the female die fixing plate in an inserting manner; the upper end of a guide column is mounted in the male die fixing plate in an inserting manner; and the lower end of the guide column is mounted in the guide sleeve in an inserting manner. The device and the method are used for blanking forming of the foil plate.

The invention provides an atmospheric cold plasma jet auxiliary cutting method. Cold plasma jet generated under atmospheric pressure is used as a lubricating cooling medium during material cutting. Working gas enters a cold plasma jet generator from a working gas source via a pressure reducing valve and an adjustable flow meter, the flow of the working gas and output voltage of a high-voltage power source are adjusted so that uniform cold plasma jet is sprayed out from a nozzle outlet of the cold plasma jet generator, the temperature of the jet is the room temperature or is slightly higher than the room temperature, and a tool and workpiece interface and a tool and chip interface are always soak in the cold plasma jet during cutting by means of adjusting a spraying angle. Plasma can be generated in a dielectric barrier discharge mode, a suspension electrode discharge mode or a bare electrode discharge mode. The atmospheric cold plasma jet auxiliary cutting method is an environment-friendly cutting method, an excellent lubricating and cooling effects for various metal and nonmetal materials can be realized during cutting, accordingly, cutting force is reduced, the service life of a tool is prolonged, and the quality of the surface of a workpiece is enhanced.

The invention discloses a preparation method of a high-purity copper sputtering target, belonging to the technical field of sputtering targets. The method mainly comprises the following steps: carrying out upsetting and stretching plastic deformation on a high-purity copper target blank; cooling the target blank after multiple rounds of upsetting and stretching deformation; carrying out rolling deformation on the cooled high-purity copper target blank to prepare a high-purity copper target blank; and then carrying out thermal treatment on the target blank to obtain the high-purity copper target with fine and uniform tissues. The preparation method has the advantages that the high-purity copper target is prepared by adopting the method combining plastic deformation with thermal treatment; grains of the target prepared by the method are fine and are uniform in distribution, thus completely meeting the requirements of sputtering; meanwhile, the consistency and repeatability of the processing technology are ensured by adopting plastic processing equipment with controllability; the method is simple in process, flexible in equipment operation and high in production efficiency and is suitable for large-scale industrial production.

The invention discloses an auxiliary processing device for an electric pulse pipe fitting. The auxiliary processing device comprises a pulse power supply, a concave die, a core rod, insulating layers, a first positive electrode, a second positive electrode, a first negative electrode and a second negative electrode, wherein the first positive electrode and the second positive electrode are arranged on the inner surface of the concave die; the first negative electrode and the second negative electrode are arranged on the outer surface of the core rod; the first positive electrode, the second positive electrode, the first negative electrode and the second negative electrode are annular electrodes; the first positive electrode, the second positive electrode, the first negative electrode and the second negative electrode are connected with a pulse power supply; the insulating layers are uniformly distributed on the surfaces of the concave die and the core rod except the positive electrodes and the negative electrodes. According to the auxiliary processing device for the electric pulse pipe fitting, pulse current is introduced and an electro-plastic effect is used for enabling a raw material pipe fitting to be easily extruded and molded; the device disclosed by the invention is simple in structure, rapid in heating and high in working efficiency, and the cost loss and the energy source loss are reduced.