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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...

Summer car maintenance tips

In the hot summer, the car is running at a higher load, and the mechanical wear and aging fatigue will be worse than usual. Daily maintenance can make your car’s normal service life longer. Therefore, how to carry out summer maintenance work on the car in advance is very critical. Here are a few common summer maintenance tips for everyone.

1, engine maintenance

In summer, we should try to choose some higher viscosity oil, because the viscosity of the oil will change with the increase of temperature. When the temperature is higher, the viscosity of the oil will decrease, the oxidation resistance will be poor, and it will be easily deteriorated. The oil film formed inside the engine is thin and uneven, which is likely to cause failure. In addition, under the condition of ensuring sufficient lubrication, lubricating oil with corresponding viscosity should be selected according to the temperature range, engine temperature and actual vehicle conditions during use.

2, high temperature explosion-proof tire

Because the higher the temperature, the higher the air pressure inside the tire. In the hot summer weather, excessively high or low tire pressure can easily cause abnormal heat and instantaneous inflation of the tire. Therefore, in summer, pay special attention to frequently checking the tire pressure to keep it within the normal range. In addition, the tires are prone to overheating during long-term driving or high-speed driving in summer, and the air pressure increases at the same time. At this time, you should stop to dissipate heat, and it is strictly forbidden to bleed to reduce pressure or splash water to cool down. At the same time, due to the increase of rain in summer, to eliminate the impact of slippery roads on driving safety, it is necessary to check the tire pattern, including the tire pattern type and pattern depth. Generally speaking, manufacturers will set wear marks on tires. When the pattern is worn to the point that this mark is exposed, it means that we need to replace the tires.

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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