Multi-cavity baffle type electrolytic milling and grinding complicated machining tool cathode and method

Abstract

The invention relates to a multi-cavity baffle type electrolytic milling and grinding complicated machining tool cathode and a method and belongs to the field of electrolytic milling and grinding complicated machining. According to the multi-cavity baffle type electrolytic milling and grinding complicated machining tool cathode and the method, by arranging a plurality of sector-shaped blind hole cavities in the tool cathode, and arranging an annular baffle above a cathode diamond abrasive particle layer, the defect that supplied liquid in a machining gap is not sufficient is overcome, the flow field uniformity is improved, and the stability and the machining precision of electrolytic milling and grinding complicated machining are effectively improved.

Description

technical field [0001] The invention relates to a cathode of a multi-cavity baffle type electrolytic milling and grinding compound processing tool and a method thereof, belonging to the field of electrolytic milling and grinding compound processing. Background technique [0002] With the development of science and technology, a large number of high-temperature alloys, titanium alloys and other metal materials are used in modern aviation, aerospace, shipbuilding and other industrial fields. For example, GH4169 alloy accounts for 34%, 56% and 57% of the total weight of CF6 engine, CY2000 engine and PW4000 engine respectively; titanium alloy accounts for 41% of the total materials used in the fourth-generation fighter F-22, etc. However, due to the inherent characteristics of these materials, such as poor thermal conductivity, high strength, and high hardness, the temperature in the processing area is high during machining, and the cutting force is large, which easily causes to...

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Problems solved by technology

[0005] The cathode of the ordinary internal spray electrolytic milling and grinding compound processing tool is a hollow single cavity structure with multiple uniformly distributed liquid outlets on the bottom side wall. When using the common internal spray liquid electrolytic milling and grinding compound processing tool cathode , due to being blocked by the workpiece, the pressure of the electrolyte in the outlet hole facing the workpiece increases, causing most of the electrolyte to be ejected from the low-pressure outlet in the opposite direction of the cathode movement of the electrolytic milling and grinding composite processing tool, by The knowledge of flow field design in electrolytic machining shows that at this time, the electrolyte supply in the processing area is insufficient, and the processing heat and electrolytic products cannot be discharged in time, which may easily cause short circuits and workpiece burns; at the same time, when the electrolyte is sprayed from the processing gap, Based on the design knowledge of the electrolytic machining flow field, due to the sudden expansion of the flow channel area, it is easy to cause cavities in the machining gap, and it is also easy to cause short circuits and workpiece burns.

These two kinds of defects on the cathode of ordinary internal spray electrolytic milling and grinding composite processing tools will lead to poor processing stability and reduced processing accuracy, which limits the further development of this technology

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