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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

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

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

Braking after the car speeds up

  The friction coefficient of the sand-sticking roller is similar to the real road surface, which can simulate the actual braking situation of the car, increase the speed of the car and then brake, detect the braking force of the left and right wheels on the same car, and evaluate the car through calculation The braking performance of the car, the braking efficiency and stability data of the car during braking are given. The reaction roller brake test bench puts the front and rear wheels of the tested car on two rollers respectively. The two rollers rotate in the same direction under the drive of a motor and drive the wheels to rotate. At this time, the rolling of the wheels can be measured. resistance. When the brake air pressure of the tested car is greater than one atmosphere, the motor drives the wheels to rotate at the equivalent speed, and the tested car will brake. At this time, the wheel gives the roller a force that is opposite to the driving direction of the roller, that is, the braking force. This force causes the entire brake device to rotate with the roller as the axis and is balanced by the balance device to be relatively stationary. The balance is suspended on the base of the test bench and The change amount of the stretching sensor at the free end of the drum gearbox is reflected, and the change amount is converted into an analog electric signal and transmitted to the secondary instrument panel controlled by the single-chip microcomputer. After the conversion, the braking force value is displayed on the instrument panel panel. The working time of each braking is seconds. Once the wheels are completely locked, raise the brake pedal, otherwise the wheels of the car may be excessively worn. In the fully automatic automobile detection system, while the secondary instrument panel outputs the braking force value, the single-chip microcomputer transmits the digital signal generated by the converter to the main control computer system. The main control microcomputer substitutes it into the international market together with the pre-measured vehicle front and rear axle weight values.

For 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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