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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...

Improve the technical level of China’s automobile emissions

The civilian investment project of China North Benz heavy-duty vehicle technology transformation project passed the national inspection and acceptance, forming an annual production capacity of 6,000 vehicles. It marks that China has built its third heavy-duty vehicle production base in Baotou, following the Sinotruk Group and Dongfeng Motor Corporation. Yuejin Automobile Group Corporation and Italian Fiat Group Iveco Company registered Nanjing Iveco Co., Ltd. The Ministry of Machinery issued the “Ninth Five-Year Plan” for the Control of Emissions from Automobile Products. The implementation of this plan will greatly improve the technical level of China’s automobile emissions.

The eighteenth meeting of the Eighth NPC Standing Committee appointed Bao Xuding, the former deputy minister of the Ministry of Machinery Industry, as the Minister of the Ministry of Machinery Industry. The technical appraisal expert group and the localization verification group composed of the Automobile Industry Department of the Ministry of Machinery Industry and the Tariff Department of the General Administration of Customs have verified that the localization rate of Changan Alto cars has exceeded 60%, which has reached the second-level differential tax rate requirement of preferential tariffs stipulated by the state.

With the approval of the China Securities Regulatory Commission, 36.8 million new shares of Shenyang Songliao Automobile Co., Ltd. were issued online at a fixed price on the Shanghai Stock Exchange. The shares of “Songliao Automobile” issued this time are called “Military stocks.” The Sino-US joint venture, Dongfeng Cummins Engine Co., Ltd., with a joint investment of US$78 million, was established in Nangfan. The opening ceremony of the joint venture Qingqi Suzuki Motorcycle Co., Ltd. was grandly held in Jinan High-tech Development Zone 1.

At the Shanghai International Automobile Exhibition, Shenlong Automobile Co., Ltd. officially launched Fukang’s new models of AL (luxury) and AG (basic) 1.6-liter EFI cars. The National Bureau of Technical Supervision approved the conditions for the opening of the gas vehicle maintenance industry “GB/T16739” began to be implemented. The “conditions” put forward higher levels of investment in testing equipment and technology for auto maintenance companies. The safety inspection line of Beverly Cars has passed the national requirements, and the owners of auto maintenance are guided to pay more attention to the acceptance. From now on, Beverly Cars will enjoy the protection of the environment for new cars.

The 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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