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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Introduction of KOVAR parts

KOVAR parts are commonly used as metal casing materials in the electronic packaging industry. Because they have a linear expansion coefficient close to that of molybdenum group glass, and can produce less sealing stress during the sealing (melting) process with molybdenum group glass, so To obtain good air-tightness, in order to make the metal tube and shell to achieve air-tight sealing, in the entire sealing process, the annealing process undoubtedly plays an important role as a link between the previous and the next. The internal stress generated during KOVAR  machining also prepares the material structure for the implementation of the subsequent process-the sealing process of the metal parts. The main purpose of annealing Kovar shell before sealing is to: (1) Eliminate machining stress. When Kovar undergoes plastic machining deformation during cold working, about 10% to 15% of the applied energy is converted into internal energy, which is commonly referred to as internal stress,

Vehicle inspection and maintenance work must be done before self-driving tour

Self-driving travel is a very popular way of vacation nowadays. The Dragon Boat Festival holiday is coming soon, and it is another hot period for self-driving travel. It is a great time to bring your wife and bring friends and call friends. However, don’t forget to make preparations before departure. Among them, vehicle inspection is essential.

Then, how to do a good job in vehicle inspection and maintenance?

1. Power system

Check the engine oil and water tank level. If it is an automatic transmission model, it is also necessary to check whether the transmission mailbox is missing. If it is excessively consumed, it should be refilled in time.

If the self-driving trip is long, it is best to change the engine oil, because the engine’s high temperature work for several days may cause the oil to deteriorate. Also need to pay attention to whether the engine belt is loose. If you need to clean the engine and radiator on the way, remember to go to a professional car dealer for professional cleaning.

2, chassis system

The continuous impact on the chassis caused by the journey may change the four-wheel alignment, resulting in abnormal tire wear, so don’t forget to do a four-wheel alignment for your car according to the situation when you come back from the journey. If it vibrates all the way, it may damage the steering system. Check whether the steering gear ball head is loose. The screws of the chassis part should also be checked and tightened.

3, tire condition

Measure the tire pressure to keep the same tire pressure for all four wheels; ensure that the tires have the same running friction to ensure safe driving.

4, brake system

This is very important. Check carefully before departure. If there is an abnormal noise when you step on the brakes, you must go to a professional store to check and replace the brake pads. If braking occurs during driving, you must pay attention to it, and don’t get lucky.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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