Electrolytic milling-grinding machining tool cathode with efficiency and precision and electrolytic milling-grinding method

Abstract

The invention relates to an electrolytic milling-grinding machining tool cathode with efficiency and precision and an electrolytic milling-grinding method, and belongs to the field of electrolytic milling-grinding composite machining. According to the electrolytic milling-grinding machining tool cathode and the electrolytic milling-grinding method, a plurality of arc-shaped grooves at equal intervals are formed in the lower end of the side wall of the tool cathode, the side walls of the grooves are insulated, and diamond abrasive particles are inlaid in the wall surfaces of the portions, except for the grooves, of the side wall of a cathode base body through a resin binder, so that electrochemical anodic dissolution only exists in the surfaces of the portions, opposite to the grooves, of aworkpiece, at the moment, the depths of the grooves become a part of a machining gap, accordingly the contact depth between the diamond abrasive particles in the portions, except for the grooves, ofthe side wall of the cathode base body and the machining surface of the workpiece is increased, then the grinding effect of the diamond abrasive particles on the workpiece in the electrolytic milling-grinding process is enhanced, and the precision and the surface quality of the electrolytic milling-grinding machining can be improved; and moreover, compared with the electrolytic milling-grinding finish machining under the low current density in the past, the tool cathode can adopt higher current density, and the machining efficiency can be improved.

Description

technical field [0001] The invention relates to an electrolytic milling and grinding tool cathode and an electrolytic milling method that take into account both efficiency and precision, and belongs to the field of electrolytic milling and grinding combined processing. Background technique [0002] With the development of science and technology, parts made of difficult-to-cut materials such as titanium alloys and high-temperature alloys have been used more and more in the fields of aviation, aerospace, petroleum, and chemical industry. For example, artificial earth satellites, manned spacecraft, space shuttles, etc. are gradually using titanium alloy plate weldments. In deep well mining of oil and natural gas, corrosion-resistant and wear-resistant superalloys must be used. However, due to the high hardness and low thermal conductivity of these materials, traditional machining is often accompanied by problems such as large cutting force, high temperature in the cutting area,...

AI Technical Summary

Problems solved by technology

However, in order to improve the efficiency of electrolytic milling and grinding, a larger machining voltage is often used. At this time, the current density in the machining gap increases, and the material removal speed increases. Although the feed speed of the tool cathode also increases, the distance between the tool cathode and the workpiece The machining gap tends to increase, and the contact depth between the abrasive grains and the workpiece gradually decreases, which is not conducive to the improvement of machining accuracy.

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