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Working principle of slow wire processing

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 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...
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What are the rules for metal stamping die scrap tube?

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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...
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Introduction of KOVAR parts

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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...
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What is the reason for the high temperature of the die-casting mold?

cncmachining November 15, 2021

In the process of using the die-casting mold, we need to understand the reason why the temperature of the die-casting mold becomes higher, so what is the specific reason? Let’s take a look together below.

Many accessories used by people in daily life are manufactured by die-casting molds, so this mold technology is in great demand in the market. In the shopping malls, due to the increase in demand, the development of Kaiping die-casting manufacturers has gradually expanded along with the economy. However, what is the result of the high surface temperature of the die-casting mold? Here is a brief introduction to the problem, hoping to bring help to those in need.

Casting standards will be affected: the surface temperature of the die-casting mold is closely related to the standard accuracy of the casting. If the surface temperature does not meet the requirements or the temperature spread is unreasonable, the casting will have poor standard accuracy due to uneven heating. The phenomenon appears. So from this perspective, the temperature issue must be paid attention to.

The appearance of the casting will be affected: the surface temperature of the die casting mold will definitely affect the appearance of the casting. If the temperature is unreasonable, it will simply cause severe deformation of the casting, such as unevenness and shrinkage. It is necessary to know that the impact of appearance will have a great impact on product sales, so the appearance quality of castings must be paid attention to.

Standard accuracy and appearance quality will be greatly affected, which is caused by the surface temperature of the die-casting mold, so people must control the surface temperature of the mold at any time during processing.

Link to this article：What is the reason for the high temperature of the die-casting mold?

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