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What will affect the processing effect of the mirror spark machine

 1. The influence of discharge gap on machining accuracy

When the mirror spark machine is working, there is a short gap between the material and the material during discharge. This gap is to control the stability, so increasing the pulse gap time can also improve this stability, and the increase in peak current can also make The production efficiency is improved, but it will also have a negative effect and wear the electrode. 

However, the surface material of the object is different, and the roughness will be different. In order to ensure the stability of the discharge gap, the electrical parameters of the pulse power supply must be ensured. In addition, the accuracy and rigidity of the machine tool should also remain stable. At the same time, special attention should be paid to the impact of the secondary discharge caused by the electrical corrosion products on the discharge gap.

2. The size and consumption of the electrode will affect the accuracy

In electrical discharge machining, because the pulse discharge is subject to electrical corrosion, the loss of the electrode can be understood and mastered. Various methods should be adopted to reduce the loss of the electrode to ensure that the mold will have higher machining accuracy. EDM, the loss of different parts of the electrode, the electric field strength is usually sharp corners, edges and high-point discharge phenomena are different when other protruding parts are easily formed, so the loss is faster than the flat part, and it will inevitably lead to uneven loss reduction Precision. At the same time, the parts of the electrode sparker are lost and the physical constants of the electrode materials are also affected by heat. The higher the melting point, boiling point, and heat capacity of the electrode material, the latent heat of vaporization of the melt, greater thermal conductivity, better corrosion resistance, and strong heat transfer ability, which can reduce electrode loss.

3. The influence of surface roughness

With the increase of pulse width and current peak value, the evaluation parameters of the surface roughness of electric corrosion also increase. Under certain processing conditions, the increase of pulse width and current peak value will increase the energy of a single pulse, thereby increasing the cross-sectional size of the electric erosion pit. Therefore, the surface roughness mainly depends on the energy of a single pulse.

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What Is PTJ?
PTJ adopts flexible manufacturing methods to help our customers to control the product cost but best quality guranteed. Some frequently used machining processes include CNC milling, CNC turning, precision grinding, EDM machining, laser cutting, welding, CNC punching, sheet metal stamping, profile extrusion, die casting, forging, and more. Most of the custom precision cnc machining china parts and plastic machining components we made are related to automation machines, robotics, medical devices, fiber optics, aerospace/aircraft, test and measurement, sensors, telecom components, scientific devices, audio equipments, bicycles, boats, camera, cars, drones, electronic enclosures, front panels, furniture and architecture hardware, lighting, motorcycles, scooters, utv, jeeps, trucks, sports equipments, machinery, music instruments, and so on.
For Surface Finishes
Thanks to our mature supplier management and continuously experience accumulation. Now we have very stable surface finish suppliers to assist us to do different surface finishes with stable and excellent quality. Some Frequently used surface finishes are Anodizing, Oxide, Nickel Plating, Chrome Plating, Gold / Silver Plating, Powder Coating, Zinc Plating, PVD Coating, Passivation, Heat Treatment, Electrochemical machining, Brushing, Polishing, Sandblasting, etc.
General Tolerance of Equipments
1. CNC Milling tolerance: +/-0.01mm
2. CNC turning tolerance: +/-0.01mm
3. Precision grinding tolerance: +/-0.005mm
4. EDM machining tolerance: +/-0.005mm
How to Control Quality?
1. Inspection by machinist himself who is responsible for a specific part machining.
2. First article part inspection by QA.
3. IPQC patrol inspection during production.
4. PQC inspection before shipping according to ISO9001 sampling inspection standard for large quantity production. And for small quantity, 100% full inspection.
5. Material Certificates and outgoing inspection reports could be provided.
Our CNC machine and swiss machining shop sets full and advanced inspection instruments such as CMM, projector, height instrument, industrial microscope, micrometer, calipers, thread gauges, pin gauges, block gauges, etc. so as to inspect all details on drawings and confirm quality is good and issue the ourgoing reports accordingly.
How to Start Working with Our Company?
1) Sending detailed RFQ with 2D and 3D drawings to through email to info@pintejin.com. General drawing formats like PDF/ STEP/IGES/X_T etc are accepted.
2) We check and confirm about materials, surface finish and quantiy, and evaluate. If any question, our sales engineer would double check with customers until everything is clear. We will quote accordingly if we are ok to make the parts with best quality. If no question and everything is clear, we send quotation with best prices within 24 hours. Our sales engineer team is online for 7/24 for offering customers the best cnc machining services.
3) We recommend to start from few pcs prototypes for approval at the beginning. If nothing wrong after customer’s test and approval, then we proceed to volume cnc manufacturing.
Some Tips for Customers
a. We accept Paypal payment of small amount payment for samples or small batch orders for building mutual trust at the beginning. General payment terms is 30% by wire transfer, and balance before shipping.
b. Delivery time for few pcs samples are generally 5 to 7 days, and 15 to 25 days for volume production. If the order quantity was too big, we would check and confirm delivery time sepertely.
c. Our company has concrete promise to all customers that if any quality problem caused by our factory, we would remake all parts for free or send money back.
Safe Packing Methods to Prevent Goods from Damage during Transportation
Due to long distance transportation to overseas countries, safe and strong packing is very important to gurantee the parts to be in good conditions when arriving at customer’s hand. We choose different packing materials according to different parts and quantity. Some commonly used packing materials are pp/bubble bag, oil paper, foam, blister tray, 5 layer carton, wood box, etc. See below some packing pictures.