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...
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...
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...
Where are the main advantages of precision parts processing?
In the precision parts and ordinary parts, more and more people will tend to choose the former, also as a component of machinery, precision parts why will be more popular?What are the benefits of precision parts processing?The following by our chief engineer to introduce to you:
Parts in the process of processing, due to the influence of various factors, it is easy to lead to its own defects.For example, the appearance is not up to standard, the scope of use is limited, and so on. The existence of these defects is bound to bring some problems to the use of parts.In order to overcome these problems and give play to the unique value of parts, precision parts machining is the best choice.
Choose precision parts processing, not only can effectively improve the material quality, precision parts, exert its function, still can make parts durability greatly improve, improve the quality of the whole machine, precision machining is beneficial for improving the dimensional accuracy of parts, so the most direct effect is to do a make parts interchangeability, which increases the wear resistance and service life of parts.
It is because of these advantages that precision parts machining is so popular.Equipment assembly can also have a more suitable field to be used, so that its value is the ultimate play.From this point of view, we must pay attention to precision parts processing links.
After processing different parts, we can get more suitable parts for ourselves.Therefore, in order to make these products better for their own service, play its most extreme value, so many are not necessary precision machining this important link.
What is machining?
Mechanical processing is a process of changing the size or performance of the workpiece with processing machinery. According to the temperature state of the workpiece, it is divided into cold processing and hot processing.Generally processed at room temperature, and does not cause the chemical or phase change of the workpiece, called cold processing, generally higher or lower than the normal temperature processing, will cause the chemical or phase change of the workpiece, called hot processing.Cold processing can be divided into cutting and pressure processing according to the difference of processing methods, hot processing common heat treatment, calcination, casting and welding.
Also often need to use when assembling the hot and cold processing, such as: bearing tend to inner ring when it is assembled in the liquid nitrogen cooling shrink its size and amplify the outer heating the appropriate size, and then the assembly together, the wheels of the train outer ring is also use the method of heating to be set on the substrate, that is united in wedlock can guarantee its on cooling.
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