Large-thickness electrolytic cutting special-shaped tube electrode with rectangular cross-section and processing method
A technology for cutting processing and special-shaped tubes, which is applied in the direction of electric processing equipment, electrochemical processing equipment, electrode manufacturing, etc., can solve the problems of reducing processing accuracy, overcutting, secondary corrosion, etc., and achieve improved dimensional accuracy and surface smoothness, Improve the flow field and reduce the effect of secondary corrosion
Active Publication Date: 2019-08-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
The feeding of the electrode will also cause the surface on both sides of the tube electrode to cause secondary corrosion on the processed surface, resulting in overcutting and reducing the processing accuracy
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[0026] figure 1 Shown is a schematic diagram of the appearance of a large-thickness electrolytically cut special-shaped tube electrode. Several liquid outlet holes 7 communicate with the central blind hole.
[0027] figure 2 In the schematic diagram of the processing of the special-shaped tube electrode shown in the large-thickness electrolytic cutting, firstly adjust the distance between the liquid outlet hole 7 of the special-shaped tube electrode 1 and the workpiece 2, and ensure that the liquid spray hole of the tube electrode 1 is directly facing the workpiece 2; then, in Set the cutting route in the control system, turn on the power supply 11 and start processing.
[0028] image 3 In the schematic diagram of the shape profile of the improved processing cross-section of the special-shaped tube electrode shown, the liquid outlet hole of the common rectangular tube electrode 6 is facing the workpiece processing area. The corresponding area produces pits, such as ima...
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The invention relates to a large-thickness electrolytic cutting rectangular section special-shaped tube electrode and a machining method, and belongs to the field of electrolytic machining. The cross-sectional shape of the special-shaped tube electrode is approximately triangular to facilitate the discharge of electrolytic waste liquid. The two sides of the special-shaped tube electrode are wrapped with insulating layers to reduce the secondary corrosion and over-cutting of a machined surface and to improve the flatness of the machined surface. Holes are formed in the machining side face of the special-shaped tube electrode in a staggered mode to improve the flatness of the machined surface. The hole diameter and direction of a liquid outlet hole gradually change in the axial direction ofthe special-shaped electrode to improve the consistency of the liquid outlet flow rate of each hole. A water baffle is installed on the inner wall of the tube electrode to improve the flow field in the special-shaped tube electrode and the liquid outlet hole. The liquid outlet hole in the side face of the special-shaped tube electrode is arrange in a groove, a pit on the machined surface can be reduced and the flatness of the machined surface can be improved. The electrolytic cutting special-shaped tube electrode can machine a rectangular section groove with a large thickness. The large-thickness electrolytic cutting rectangular section special-shaped tube electrode has important significance for machining large-thickness workpieces and improving the flatness of the machined surface.
Description
technical field [0001] The invention relates to a large-thickness electrolytic cutting special-shaped tube electrode with a rectangular cross-section and a processing method, belonging to the field of electrolytic processing. Background technique [0002] Difficult-to-machine materials such as titanium alloys are widely used in aerospace and other fields. Due to the high temperature resistance, corrosion resistance, and high strength of titanium alloy itself, the traditional machining tools are severely worn and the processing technology is complicated, and usually produce residual stress on the machined surface to form a work hardened layer; in addition, some parts The shape is more complex, and the amount of material removal further increases the difficulty of processing. How to improve the processing efficiency and processing quality of difficult-to-machine materials has become one of the research focuses in the field of advanced manufacturing. [0003] Electrolytic cut...
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IPC IPC(8): B23H3/04B23H3/00
Inventor 李寒松刘洋王系众曲宁松
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS