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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

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Spring Design Attention And Roll Forming Method

Spring Design Attention And Roll Forming Method The coiling characteristics and methods of springs are divided into cold coiling method and hot coiling method. Cold winding method: When the diameter of the spring wire is less than 8mm, the cold winding method is adopted. High-quality carbon spring steel wire is usually first cold drawn and then heat treated. After winding, it is generally not quenched, but only tempered at low temperature to eliminate the internal stress during winding. Hot-rolling method: Springs with larger diameter (>8mm) spring wire should use hot-rolling method. Hot rolled springs must be quenched and tempered at medium temperature. The Design Process Of Various Springs ·          Installation space: When designing a  compression spring , it is necessary to have a clear understanding of the space required for the installation of the spring, in order to effectively grasp the basic manufacturing conditions of the compression spring, including the outer diam

Introduction to the correct maintenance of exterior lamps

It is an extremely quick and simple task to check the bulbs of lamps outside the car for burnout failures. However, it is not so simple to maintain a comprehensive system of exterior lamps. Timely maintenance of exterior lights is very important to the driver, because it not only affects the comfort of driving, but also directly affects the safety of driving. It is often difficult for car owners to realize that the headlights, taillights, turn signals or parking lights are not working properly before being reminded. By the way, the work of replacing a burnt out bulb is very simple, and the cost of DIY is lower than the charging standard for maintenance of the lighting system at the repair station.

In more cases, the failure of car lights is by no means limited to small problems such as bulb burnout, rusty socket or damaged plug. It is often necessary to adopt professional diagnostic techniques to analyze the root cause of the failure. Even for the most expensive cars, the internal and external lamps are controlled by the main computer; while for luxury cars, only the headlights are controlled by three computers.

If the car is equipped with DRLs (Daytime Running Lamps), you must first understand the working principle of these devices. For example, some daytime running lights cannot be turned on before the engine is started; for some daytime running lights, if the parking brake has not been cancelled, even if the engine has been started, the daytime running lights still cannot work normally. If the vehicle is equipped with light-controlled lights (that is, when the external light is dim to a certain degree, the system has the function of automatically turning on the headlights), you may wish to check the working conditions of the lights during the light sensitivity from the weakest to the strongest state. Of course Don’t neglect to check the automatic shutdown timer. If the system is equipped with a timer, please set it to the maximum delay.

If the headlights are damaged, they are usually replaced with similar lamps. Some cars are equipped with high-intensity discharge headlights HID, which generates high-density light sources through high-voltage arc discharge generated by its pre-designed electronic system. Note that ordinary quartz-halogen bulbs cannot be used here. In addition, check the headlight lens for cracks, because although surface cracks will not affect the lighting performance of the headlights, moisture will penetrate into the lamps along the cracks, which will inevitably reduce the service life of the bulb.

The calibration of the direction of the headlights should also be included in the list of maintenance items, because in order to ensure the maximum safety of the driver, the headlights must be able to provide good forward lighting for the moving vehicle.

While grasping the key, don't forget to check other light systems, such as turn signals, license plate lights, width lights, parking lights, reversing lights, and brake lights (including the middle-high brake lights CHMSL). In addition, many vehicles also use fog lights as standard equipment or popular options. Fog lights are generally installed at a lower position on the car, so they are easily damaged by stones. When maintaining them, in addition to checking the lighting system In addition to itself, the cracks in the headlight lens should not be ignored.

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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