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 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 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
The effect of coating thickness on surface and internal quality is the result of different coating thicknesses treated with different powers. Under the condition of constant coating thickness, the change of power has little effect on the quality of the cladding layer. When the power is the same, the surface quality and internal quality of the cladding layer will change greatly when the thickness of the coating is changed. When the power is in the range of 1.8kW～2.0kW and the coating thickness is 1mm～2mm, a good cladding layer can be obtained.
When the coating thickness is 3mm, continue to increase the laser power to change the quality of the cladding layer. However, in actual work, the power of the equipment cannot be increased indefinitely, and the thickness of the coating is not as thick as possible according to the working characteristics of the valve. In actual production, it should also be considered that after laser cladding, post-grinding should be carried out. Therefore, the appropriate thickness of the exhaust valve laser cladding coating is 2mm, which can not only meet the working conditions of the valve, but also ensure the stability of the process.
The influence of adhesive on the quality of the cladding layer During the pre-coating process of the valve, the adhesive has a significant influence on the quality of the cladding layer. The adhesive should firstly ensure good bonding performance and certain high temperature resistance, and there should be no splashing and peeling during the heating process. The adhesive must also be easy to volatilize, does not damage the performance of the cladding layer, is conducive to the formation of the cladding layer, and does not contain moisture.
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