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
Working part cutting edge size calculation 1.1.1 Calculation of cutting edge size of blanking concave punch die The shape of the part is a relatively simple square, suitable for separate machining. The feature of the separate processing is that it is necessary to compare the conditions of [δd + δp] ≤ Zmax-Zmin.
After the cutting edges of the blanking die wear, only the size of the blades changes and all of them increase. The cutting edge size is generally calculated according to Equation 5-7. AA = (Amax-x △) 0 + δd (Equation 5-7)
After the cutting edge of the blanking die wears, the edge size changes only once and everything becomes smaller. The cutting edge size is usually calculated according to Equation 5-8. BA = (Bmin + x △) δp0 (Equation 5-8)
Amax-Maximum distance at the end of the mold perpendicular to the feed direction. Bmin-Minimum distance between punch edges perpendicular to the feed direction. x –Concavo-convex mold wear factor. △ –Blade manufacturing tolerance. 1) Calculate the convex and concave cutting edge sizes The base size is 30-0.1 + 0.1 and R5 is converted to R50-0.22 at IT13 level. Checklist 5-4 x1 = 1; X2 = 0.5 Δp1 = -0.017; δd1 = 0.025; δp2 = -0.012; δd2 = 0.017;
2) Calculation of the cutting edge size of the punching punch The accuracy of the parts is not high, it is IT13 grade, the base size of the hole is Φ400-0.039, and it is necessary to take a larger gap because the service life of the mold needs to be considered when determining the edge clearance. I have. The results are as follows. Zmax = 0.360mm Zmin = 0.246mm δp ＝ -0.014 ； δd ＝ 0.02; So Z = Zmin = 0.246mm
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