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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...

Although the sides of the side guards also press out the role of stiffeners

Improve the heat transfer performance of the radiator. Compared with the series-fin reinforced radiator, the tube band radiator has the following main features. Heat dissipation port 2. When the air resistance of the tube-belt radiator can be reduced but the heat transfer coefficient increases, the heat transfer performance of the two radiators is compared. The characteristic of the tube-belt radiator tube belt is called the enhanced series fin radiator.

The key element of the tube-belt radiator is the corrugated belt, which is sectioned or not sectioned into a certain angle during rolling. Of wrong mouth shutters. In this way, it is beneficial to thin the adhesion layer of the airflow boundary layer on the corrugated belt, which can greatly increase the heat release coefficient of the air side, thereby saving copper tube. Compared with the reinforced radiator, each section can save the bottom of the copper tube plate. Including the reinforcement plate, each section of tube-belt radiator saves copper masking material. If calculated in ton of market price, the cost per locomotive of the main models of Ziyang Diesel Locomotive Factory can be significantly reduced. Moreover, in the brazing of the cooling flat tube end and the tube sheet, the reinforcing plate plays the role of increasing the weld seam, thereby enhancing the strength of the brazing seam. The gas welding process is simple and the production efficiency is high. It is rolled by a wave machine, omitting the cumbersome process of punching fins and fins in the production of fin-type radiators, and it is very convenient to assemble the radiator cooling core. The tin-baking furnace for cooling the core brazing and the hanging tin machine for cooling the flat tube can be used in common with the series-fin radiator. In addition, the hob for rolling the corrugated belt and the matching rolling machine are durable and can be adapted to the series of variable-depth tube belt radiators.

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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