• Home
  • Do you have a misunderstanding about the mirror spark machine? Take a look

Do you have a misunderstanding about the mirror spark machine? Take a look

 Mirror spark machine is a kind of precision mold processing tool. Generally, it is not used for simpler processing. 

For example, it is difficult to process or some molds that cannot be polished. Mirror spark machine is used because It can save several steps, thereby shortening the processing time.

  • 1. The control circuit adds a special control function. If there is an arc fault or short circuit, the pulse power will immediately turn off the power to stop the cavity, the electrode temperature will not continue to rise, and the ignition will decrease.
  • 2. X-axis side mirror machining spark opens the mold, high-precision mold, productivity can be much higher than Z-axis machining.
  • 3. After high voltage failure, EDM adopts full low voltage pulse mode with the same pulse width. Practice shows that the pulse mode reduces the wear of the tool electrode, the roughness and uniformity of the machined surface, and the wear of the tool electrode is very small.
  • 4. There are two mirror spark maintenance procedures, the side edge has a rectangular flat recovery, and the circular or elliptical plane cut surface adopts the bottom side recovery. During the lateral repair process, the electrode is inclined to the workpiece at a certain angle. At this time, the tool electrode is at the same time from the center to the outside, from the top to the bottom of the NC, that is, three-axis automatic control.
  • 5. This kind of movement is not easy to accumulate carbon, discharge, and produce arcs, and has high production efficiency.

When the effluent is greater than the effluent, the effluent has a more stable and proper function, that is, the proper lifting knife is etched but not removed, and the shaped cavity is not etched inside. When the scale body is broken, if the scale body or the flow is greater than the output, the lifting knife will stop working and improve efficiency.

Recent News



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.