Ultrasonic modulation variable voltage efficient electrolytic composite machining method

A composite processing and variable voltage technology, which is applied in the processing field of high-efficiency electrolytic processing, removal rate and processing stability by ultrasonic modulation variable voltage, can solve problems such as difficult to meet processing requirements, meet processing requirements and avoid high energy density discharge Effects of burning and avoiding short circuit phenomenon

Active Publication Date: 2019-08-02
YANGZHOU UNIV
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Problems solved by technology

However, this method is only used in the field of micro-precision manufacturing, an

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  • Ultrasonic modulation variable voltage efficient electrolytic composite machining method
  • Ultrasonic modulation variable voltage efficient electrolytic composite machining method

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing:

[0024] Such as Figure 1-2 As shown, a high-efficiency electrolytic composite machining method with ultrasonic modulation voltage modulation is specifically implemented as follows:

[0025] The cathode tool is connected to the negative pole of the power supply, and the anode workpiece is connected to the positive pole of the power supply. The ultrasonic signal drives the cathode tool to vibrate at high frequency, and the gap value between the anode workpiece and the cathode tool has a gap characteristic that changes regularly and periodically.

[0026] During the machining process, when the ultrasonic signal drives the cathode tool to approach the anode workpiece to the vicinity of the minimum machining gap, if figure 1 Shown in section AB. The power supply outputs high-frequency and high-voltage signals to force the dangerous spots where the air bubbles are relatively c...

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Abstract

The invention discloses an ultrasonic modulation variable voltage efficient electrolytic composite machining method and belongs to the technical field of special machining. According to the method, inthe electrolytic machining process, an ultrasonic technology is adopted for assisting in machining, the interelectrode dielectric transmission efficiency is enhanced through an ultrasonic high-frequency vibration effect and a cavitation effect produced by ultrasonic, and a small-gap high-speed electrochemical dissolution effect is achieved. Meanwhile, the machining voltage is increased periodically in the machining process, ultrasonic vibrating parameters and electrical signal fluctuation parameters form a coupling effect, a forcible weak spark discharging effect is produced actively in machining gaps in a small-gap machining stage, dangerous point fields in the gaps are eliminated, a cathode tool is promoted to exceed the limit of the feed rate, the potency of an electrolytic machining technology is fully released, and machining requirements of large-and-medium complex component large-redundancy efficient removing are met.

Description

technical field [0001] The invention belongs to the technical field of special processing, and relates to a high-efficiency electrolytic processing method for ultrasonically modulated variable voltage, in particular to a modulation effect using ultrasonic high-frequency vibrations to form a forced spark discharge by increasing the voltage in the small gap stage. Processing methods that increase material removal rates and process stability. Background technique [0002] In high-tech equipment in the fields of national defense, aviation, aerospace, energy, etc., key components are developing in the direction of "integration, lightweight, and thin-walled", and a large number of complex integral components have emerged as a result. They usually The size is large, the features are complex, the structure is light and thin, and the material removal rate is extremely high from blank to part processing. In addition, in order to cope with the harsh working conditions in high-temperat...

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Application Information

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IPC IPC(8): B23H5/02
CPCB23H5/02
Inventor 葛永成朱永伟闫志刚
Owner YANGZHOU UNIV
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