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Working principle of slow wire processing

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 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
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How Do Cnc Swiss Machines Work

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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
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Spring Design Attention And Roll Forming Method

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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
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Reduce the seal leakage of the secondary flow path and greatly improve the engine performance

cncmachining December 17, 2021

 

The improvement and development of sealing technology is an area with great potential; with the improvement of engine thermal cycle parameters, the sealing working conditions have also increased significantly, and the current sealing technology can no longer meet the requirements. Reducing the sealing leakage of the secondary flow path can greatly improve the performance of the engine.

IHPTET plans to reduce the leakage of the secondary flow path by 65% in the target phase. After entering the mid-1980s, several countries with advanced aero engine technology have listed the development of new sealing technology as the “frontline force for the development of the next generation of high-performance aero-engines.” “It has invested a lot of manpower and financial resources, and development activities have been extremely active.

The 　　 brush seal has been recognized as the most simple, practical and effective replacement product for the tooth seal. The British R.R Company first proposed the concept of brush seal in 1970, and took the lead in applying it to the RB199 engine based on research and development. The United States introduced British brush seal technology in 1984, pushing the research and development of brush seals into full swing.

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.

Link to this article：Reduce the seal leakage of the secondary flow path and greatly improve the engine performance

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