Large-plane efficient precision electrolytic mechanical combined machining tool and method

Abstract

The invention discloses a large-plane efficient precision electrolytic mechanical combined machining tool and method, and relates to the technical field of electrolytic machining. The tool is characterized by comprising a cuboid-shaped tool cathode body with rectangular electrolyte nozzles, abrasive particles and a clamping handle with a central liquid inlet hole. The electrolyte nozzles (1-1) are arranged on the lower end face of the tool cathode body in parallel at equal intervals. The clamping handle is arranged at the geometric center of the maximum circumcircle of the tool cathode body. The liquid inlet hole is formed in the geometric center of the end face of the clamping handle. The liquid inlet hole is communicated with the electrolyte nozzles, and the abrasive particles are symmetrically arranged on the end face of the tool cathode body about the center line of the long sides of the electrolyte nozzles. According to the large-plane efficient precision electrolytic mechanical combined machining tool and method, in the tool cathode feeding process, the electric quantity distribution in a machining area on the surface of a workpiece is uniformized better, so that the electrolytic machining precision is high, and the comprehensive machining time is short.

Description

technical field [0001] The invention relates to the technical field of electrolytic machining, in particular to a large-plane high-efficiency precision electrolytic mechanical composite machining tool and method. Background technique [0002] The forming and preparation of difficult-to-machine materials such as high-temperature alloys, titanium alloys, and titanium-based composite materials are the basic elements for these products to achieve some extreme performance in aerospace weapons and equipment. High hardness, high strength, and poor thermal conductivity are often the salient features of these materials, which make their forming-forming-forming-forming manufactures face many challenges. For the processing and forming of aerospace parts with large planes and large margins removed, the main processing methods are machining, EDM, electrolytic machining, and electrolytic composite machining. [0003] Compared with the "head-to-head" machining of mechanical processing, th...

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Problems solved by technology

From the aspect of optimizing the electric field, Niu et al. adopted the solution of insulating the bottom of the tool to reduce the power transmission from the cathode of the tool to the middle area of ​​the groove area. However, because the bottom is insulated, only other tools can be replaced during finishing (Niu, Shen , NingsongQu, and Hansong Li. "Investigation of electrochemical mill-grinding using abrasive tools with bottom insulation." The International Journal of Advanced Manufacturing Technology 97.1-4 (2018): 1371-1382.); The way of opening holes at the bottom changes the flow field environment at the bottom of the tool, which in turn affects the distribution of the electric field on the bottom surface of the machine (Yue, Xiaokang, et al. "Improving the machined bottom surface inelectrochemical mill-grinding by adjusting the electrolyte flow field."Journal of Materials Processing Technology 276 (2020): 116413.)

The above studies have made great progress. However, these solutions are all optimization measures taken at the bottom of the round rod-shaped electrode, and cannot fundamentally eliminate the phenomenon of uneven power distribution caused by the electrode geometry.

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