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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 bett...

What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th...

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 stre...

Can a laser cutting machine cut rusty iron plates?

We all know that the laser cutting machine is a tool for sheet metal machining, cutting iron like mud; in the actual production process, we often find that the processed material will rust, especially in the south, which is relatively humid, carbon steel, iron plate, etc. They are easy to rust, so what should be paid attention to when the laser cutting machine cuts rusty materials?


We must first analyze the cutting principle of the laser cutting machine. The laser itself is not a light source. The laser will generate heat after being absorbed when processing the surface of the sheet. In the case of rust or no rust on the surface of the material, the laser absorption is not the same, and the heat generation will be greatly affected. Generally, cutting rusty steel plates will have the following effects:

The laser cutting efficiency of the rusty plate will be reduced, the effect is almost, and the scrap rate is high. If conditions permit, it is better to reduce the use of rusty plates or deal with the use of rusty plates.

 The biggest damage is actually blasting when punching and cutting, which will cause pollution to the lens. You can use a grinder to remove rust first. If the plate is not a thick plate, the effect of less than 5MM is not large, but it will affect the quality of the cut product and the failure rate is high.

The cutting conditions of the uniformly rusty plate will be better than that of the unevenly rusty plate, because the uniformly rusty plate absorbs the laser cutter evenly and can be cut very well. For the processing of materials with uneven and rusty surfaces, the surface conditions of the materials must be uniform before cutting.

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