Application of Jiehaoxin deburring polishing machine in coil products

The power supply of electrochemical deburring equipment adopts thyristor rectifier power supply, and there are many technological factors that affect the effect of pulse electrochemical burr processing, such as reasonable design tool cathode, pulse power supply parameter selection, electrolyte composition, concentration, pressure and flow rate, electrode gap, current density, Processing time, flow field characteristics, etc.

The processing technology of electrochemical deburring equipment is as follows:

Tool cathode

The tool cathode should be reasonably designed according to the specific burr situation. When designing, attention should be paid to the application of masking technology to ensure the original accuracy and surface quality of other non-burr parts on the anode surface of the workpiece, and at the same time quickly remove burrs.

In addition, the basic principles of pulsed electrochemical machining should also be satisfied, even if the electrolyte cleans the machining part quickly and evenly to ensure that the flow field distribution is uniform and reasonable. Since the electrode surface quality directly affects the surface quality of the burr removal site, the tool cathode surface is smooth.

Pulse power

Theoretical research and machining practice show that deburring machining with pulsed power supply instead of DC power supply can effectively improve machining accuracy and surface quality. During processing, the pulse width is narrow and the pulse frequency is high.

Due to the pulse current gap action and jump changes, the electrolyte in the machining gap oscillates, generating pressure waves. The mixing action of the pressure wave can improve the flow conditions of the electrolyte in the machining gap, accelerate the renewal of the electrolyte in the gap, eliminate the non-uniformity of the electrolyte conductivity distribution in the machining gap, and improve the machining accuracy and surface roughness.

Deburring equipment

In addition, due to the regular renewal of the electrolyte, the electrochemical species in the gap (metal removed by the anode, hydrogen precipitated by the cathode, Joule heat, etc.) can be promptly and fully eliminated. Pulse power supply parameters should be reasonably selected according to processing conditions.

Electrolyte

Electrolyte composition is the main factor affecting the processing quality. Nonlinear electrolytes with neutral inorganic salts as the main components have the characteristics of wide application range, convenient control, low stray corrosion, good surface quality, and environmental friendliness. During the processing, the specific composition of the electrolyte should be determined according to the size of the burr, and the flow direction, flow rate and pressure of the electrolyte should be reasonably designed to quickly flush the removed burr from the processing gap and avoid short circuits.

other process factors.

Reasonable selection of cathode and anode gaps is conducive to improving corrosion speed and machining accuracy, and improving the quality of machined surfaces. The choice of current density and processing time is also very important. Excessive current density can exacerbate stray corrosion. Too small current density will reduce processing efficiency and prolong processing time, while too long processing time will aggravate crystal boundary corrosion. Under the premise of satisfying the burr removal efficiency, the processing time is mainly determined according to the size of the processing fillet.