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Principle of Spark Machine:
In the sophisticated realm of Electrical Discharge Machining (EDM), the tool electrode and the workpiece are meticulously connected to the opposite poles of the pulse power supply. Submerged in working fluid or filled into the discharge gap, when the spatial gap between these two electrodes reaches a precise distance, the applied pulse voltage triumphs over the working fluid's resistance, triggering an electrifying spark discharge.
During the fleeting moment of discharge, an immense amount of thermal energy is concentrated within the micro-channel, soaring to astonishing temperatures of over 10,000 degrees Celsius, accompanied by dramatic pressure fluctuations. This formidable energy causes localized melting, vaporization, and ejection of metal material into the working fluid. The expelled material rapidly solidifies into fine metal particles, which are then carried away by the working fluid, leaving a tiny pitting mark on the workpiece surface. The process then pauses as the working fluid re-establishes its insulating state between the electrodes.
Subsequently, the ensuing pulse voltage sparks a discharge at another proximate point between the electrodes, repetitively creating spark discharges. Each pulse discharge erodes a minuscule amount of metal. However, due to the high frequency of thousands of pulses per second, a substantial cumulative metal removal is attained, thereby ensuring impressive productivity levels.
By maintaining a consistent discharge gap between the tool electrode and the workpiece, the erosion of workpiece metal progresses as the tool electrode advances towards it. Ultimately, the machined shape becomes a perfect mirror of the tool electrode. By varying the tool electrode's shape and its relative motion to the workpiece, intricate profiles are meticulously crafted. Materials boasting high electrical conductivity, high melting points, and ease of processing-such as copper, graphite, copper-tungsten alloy, and molybdenum-are commonly employed for tool electrodes. Despite the intense process, the tool electrode experiences minimal wear compared to the workpiece metal corrosion, often resulting in negligible loss.
Acting as the crucial discharge medium, the working liquid is vital for cooling and chip removal throughout the machining process. Optimal working liquids are those with low viscosity, high flash points, and stable performance, such as kerosene, deionized water, and emulsion. EDM machines operate on self-excited discharge principles: the spark discharge between the electrodes is initiated with a high voltage, breaking down the medium as the electrodes approach each other and igniting a spark. This discharge causes a sharp drop in resistance and voltage. The spark channel must extinguish swiftly (within 10-7 to 10-3 seconds) to retain the 'cold pole' characteristic, ensuring that the channel energy impacts only a minuscule area, thereby causing localized erosion of the electrode. This precision-focused material removal technique is known as EDM.
| Product name | Sparking machine | ||
| Product model | ZNC-450 | ||
| Product technical parameters | |||
| 1.Table size | 700*400MM | ||
| 2(X)Left and right travel (X) | 450MM | ||
| 3(Y)Forward and backward travel (Y) | 350MM | ||
| 4Spindle travel (Z-axis) | 200MM | ||
| 5Head travel | 230MM | ||
| 6Distance from electrode head to table surface | 450MM | ||
| 7Maximum electrode load | 120KGS | ||
| 8Maximum working load | 1200KGS | ||
| 9Machine weight (approx) | 2200KGS | ||
| 10Volume of filter box | 400L | ||
| 11Net weight of filter box | 150KGS | ||
| 12Appearance dimensions (L * W * H) | 1470*1150*1980MM | ||
| disposition | Accessories name and specification | quantity | |
Standard parts for machine tools | 1,Hand oil pump | 1 | |
| 2,Quartz working lamp | 1 | ||
| 3,15''CRTPC15 "CRT display and PC industrial computer | 1 | ||
| 4Patented electrode head | 1 | ||
| 5Electric box remote control | 1 | ||
| 6Operating instruction | 1 | ||
| 7Three axis electronic ruler | 1 | ||
| 8Detail disk | 1 | ||
| 9Control box | 1 | ||
| 10servomotor | 1 | ||
| 11Machine level adjustment pad | 1 | ||
| 12Tools and toolboxes | 1 | ||
Frequently Asked Questions (FAQ)
1.What is the Minimum Order Quantity (MOQ) for your production?
A. The MOQ depends on your specific requirements for color, logo, and other specifications. For some standard items we have in stock, the MOQ is just 1 set.
2.How do you ensure the quality of your products?
A. We have always prioritized maintaining the highest level of quality. The principle we steadfastly adhere to is to provideour customers with superior quality, the best prices, and exceptional service.
3.What are the main products of your company?
A: We specialize in various machines, including CNC Machines, Lathe Machines, Milling Machines, Grinding Machines, Vertical Machining Centers, and DrillingMachines, Radial Drilling Machines, Sawing Machines, and many more.
4. What are your trade terms?
A: We accept Ex-works, FOB, CFR, and CIF terms to accommodate different customer needs.
5.What are your Payment Terms?
A: Our payment terms are T/T, with 30% initial payment upon ordering and the remaining 70% balance before shipment.
6.Which CNC system do you use?
A: We offer a range of CNC systems, including FANUC, SIEMENS, MITSUBISHI, SYNTEC, and HCN. The choice depends on your preference.
7.How can I choose the most suitable machines?
A: Send us your product drawings and applications, and we will recommend the most suitable machines for you.
8.What kind of packaging do you offer?
A: Normally, our products are packaged in plywood cases to ensure they remain in good condition. Custom packaging options are also available.
9. Can your plant provide OEM services?
A: Yes, we offer both OEM and ODM services for our customers.
10.How about the warranty?
A: Our machines come with a one-year warranty after delivery. Even beyond this period, we provide lifetime service for all our machines.
