Electrolyte Tube Deburring for Fine Deep Hole Burr Removal
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Solution Overview
Problem
Existing deburring methods, such as manual and explosion deburring, are ineffective in removing burrs from fine deep holes, especially at crossing locations, due to inaccurate positioning and potential metal build-up, while electrolytic deburring methods suffer from insufficient voltage and gas obstruction, leading to incomplete removal and surface damage.
Innovation Solution
A deburring device and method utilizing an insulating tube to guide electrolyte into a metal workpiece hole, forming a gas layer that is broken down by voltage to remove burrs, with a pressurizing component and adjustable flow pump to optimize electrolyte delivery and reduce gas generation, ensuring sufficient energy for effective burr removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual deburring method is adopted, then the burrs at outer surface and grooves can be removed, but the target is difficult to position accurately and the tool can hardly be put into fine deep holes to remove burrs
Solution Approach 1:
The patent replaces manual mechanical deburring with an electrochemical deburring system. A power source connected to the workpiece and electrolyte creates electrical discharge that removes burrs through controlled erosion, eliminating the need for manual tool insertion and positioning in difficult-to-reach areas.
Solution Approach 2:
The patent uses a pump system to circulate electrolyte through the workpiece holes and a gas generation system to create gas layers that facilitate burr removal. The hydraulic circulation ensures electrolyte reaches deep holes, while gas pressure assists in dislodging and removing burrs from difficult locations.
2Productivity
If explosion deburring method is adopted, then burrs can be removed, but metal built-up edges are very likely to be generated and attached to the inner wall of the hole due to insufficient combustion
Solution Approach 1:
The patent replaces explosion deburring with controlled electrical discharge deburring. Instead of uncontrolled combustion, a power source applies controlled electrical energy to the electrolyte-workpiece interface, creating consistent, controlled material removal without the thermal runaway and metal buildup associated with explosion methods.
Solution Approach 2:
The patent controls the deburring process by adjusting electrical parameters (voltage, current, pulse duration) and electrolyte properties (composition, flow rate, temperature). This precise parameter control ensures complete burr removal without generating metal built-up edges, maintaining surface quality while achieving high productivity.
3Ease of operation
If electrolytic deburring through instantaneous shorting is adopted, then the operation is simpler, but the method is still ineffective in removing burrs in fine deep holes due to insufficient voltage and gas obstruction
Solution Approach 1:
The patent introduces a pump system to actively circulate electrolyte under pressure through the workpiece holes, ensuring electrolyte reaches the burr locations in fine deep holes. Gas generation and circulation systems are also implemented to prevent gas obstruction and maintain effective electrical contact throughout the deburring process.
Solution Approach 2:
The patent optimizes the electrolytic deburring process by adjusting electrical parameters (increasing voltage and controlling current density) and electrolyte parameters (flow rate, composition, temperature). These parameter optimizations ensure sufficient energy delivery to remove burrs in fine deep holes while maintaining operational simplicity.
4Reliability
If electrolyte is introduced into the hole to form gas layer, then gas can isolate workpiece from electrolyte, but gas layer may obstruct electrolyte from reaching burr location and consume voltage
Solution Approach 1:
The patent optimizes electrolyte flow rate, pressure, and electrical parameters to control gas layer formation. By adjusting these parameters, the system maintains sufficient gas layer isolation for reliable deburring while preventing excessive gas accumulation that would obstruct electrolyte access or consume excessive voltage, achieving optimal energy efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables thorough burr removal with reduced contact area and voltage consumption, improving deburring efficiency and surface quality by ensuring the electrolyte reaches the burr location effectively and discharging gas smoothly, thus optimizing the deburring effect.
Implementation Method 1
the gas layer is broken down under the action of a voltage so as to remove the burrs
Implementation Method 2
gas generated in electrolysis
Data Source
AI summary
The present disclosure relates to a deburring device and method for a metal workpiece. The deburring device for the metal workpiece includes a power source, an insulating tube, a tank and an electrolyte contained in the tank. A first end of the insulating tube communicates with the electrolyte, and a second end thereof projects into a hole with burrs to be removed in the workpiece. A first pole of the power source is conductive with the workpiece, and a second pole thereof is configured to be conductive with the electrolyte. A gas layer can be formed when the power source is turned on and the electrolyte is introduced into the burr location in the hole through the insulating tube, and the gas layer is broken down under the action of a voltage to remove the burrs.