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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

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

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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