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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...

Management of joint ventures and group companies

Several cards in the hands of today’s auto parts salespersons. Many auto parts salespersons like to play these cards: One is the matching cards, that is, most of them appear in the form of matching for a certain automobile manufacturer or a certain OEM. Speaking, there are those with supporting certificates and photos; the second is the joint venture brand, that is, they rely on a manufacturer with a little reputation in the market as a joint factory or branch of a certain factory, and the third is a member brand. That is, it appears as a member of a production group and a sales group, and the fourth is a supervisory brand, that is, it appears in the form of supervision of a certain auto parts company, some of which are supervised by a certain research institute, and some are supervised by a certain industrial university. Some of this kind of producer is unbelievable. For example, some people say that it is supervised by a certain county auto parts company, and people know the company’s situation very well, and they simply don’t have the ability to supervise a certain high-tech product. The user has only one principle, no matter what you are, as long as the quality is excellent and the price is reasonable, you will use it, otherwise you will not recognize those brands.

Strengthen the management of the joint enterprise: the quality of the joint brand. Many joint enterprises take a famous and high-quality product as their leader, and expand the production of famous and high-quality products through joint ventures. However, because some affiliated factories did not produce auto parts, or did not have the ability to produce such famous and high-quality products, as soon as the brand was listed, the products would be produced immediately, and the products produced in this way did not match the name of the famous and high-quality products. Nowadays, many users shook their heads when they mentioned the products of the joint ventures. They were a little bit dubious about the products of the factories that produced famous and high-quality products, and were afraid that they were the products of the joint ventures. The main joint factory should strengthen the management of the joint factory, provide technical training to the personnel of the joint factory, and strictly monitor the quality, so that unqualified products will not leave the factory, so that product quality can be reliably guaranteed, and users can be assured and trusted . Clarify product quality responsibility identification. The State Council promulgated the “Regulations on Quality Responsibility for Industrial Products” in 1986. Quality problems of manufacturers’ products should be resolved through consultation with users in accordance with the “Regulations.” 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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