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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 better t

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Spring Design Attention And Roll Forming Method

Spring Design Attention And Roll Forming Method The coiling characteristics and methods of springs are divided into cold coiling method and hot coiling method. Cold winding method: When the diameter of the spring wire is less than 8mm, the cold winding method is adopted. High-quality carbon spring steel wire is usually first cold drawn and then heat treated. After winding, it is generally not quenched, but only tempered at low temperature to eliminate the internal stress during winding. Hot-rolling method: Springs with larger diameter (>8mm) spring wire should use hot-rolling method. Hot rolled springs must be quenched and tempered at medium temperature. The Design Process Of Various Springs ·          Installation space: When designing a  compression spring , it is necessary to have a clear understanding of the space required for the installation of the spring, in order to effectively grasp the basic manufacturing conditions of the compression spring, including the outer diam

Engine manufacturers’ demand for high-quality base oil will increase


The countermeasures of the oil refining industry used to be to improve oil additives. The current method is to improve the quality of the base oil while improving the additives. One is to increase the purity of the base oil, and the other is to increase the viscosity index of the base oil. The specific requirements for the quality of the base oil are: high viscosity index, long life, that is, high oxidation stability, requiring little increase in viscosity during use, less loss of additives, and less precipitation generation; low volatility, that is, high boiling point, low Fuel consumption; lower viscosity at low temperature, that is, better cryogenic pump delivery performance; high shear stability, less dependent on viscosity modifiers.

Since the hydrogenated base oil has better isomerism and saturation, it has better oxidation stability, better thermal stability, higher viscosity index and lower pour point, and has better low temperature Fluidity, with proper blending performance. òClass base oil, because it adopts heterogeneous dewaxing to selectively convert wax into lubricating oil, so that it has good low-temperature performance, and is more suitable for preparing internal combustion engine oil, automobile automatic transmission fluid and hydraulic oil.

In addition to the production of Type II base oils, part of Type ó base oils can also be produced by adopting the full hydrogenation process. Class ó base oil has all the advantages of Class II base oil, and it also has a higher viscosity index and very low volatility. Its low temperature performance is much better than ò Class oil, close to synthetic lubricating oil (poly A-olefin). Engine manufacturers have higher and higher requirements for the quality of future base oils, and the demand for high-quality base oils will increase.

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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