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
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 static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state. CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200 beryllium copper and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette
Keywords:Cnc Machining parts,How to ensure the accuracy of CNC machining parts?
For many non-standard parts processing customers, the most concerned is the machining accuracy of CNC machining parts when selecting suppliers.It is easy to find suppliers for the precision processing industry in Shenzhen, but it is difficult to find the processing points with higher accuracy, and we must be careful.In short, there is a risk to accuracy and careful processing.
For machining centers with no standard parts, more tools are usually required.In order to ensure the machining accuracy of CNC machining parts, the replacement sequence of cutting tools should be reasonably arranged.Replacement of processing tools should be carried out in accordance with the processing sequence, the general process principle is that the first datum, and then drilling, first rough after fine.
For the machining of precision mechanical parts, the machining of datum surface is optimal, which provides the positioning basis for the machining of other surfaces.The process positioning benchmark is the benchmark of the next process positioning.Therefore, when the non-standard parts are processed, the whole processing process can be pushed forward and backward after determining the positioning datum of each procedure.
Determining whether non-standard parts need to be machined or not is to determine the machining sequence of CNC machining parts.It is also usually carried out by means of CNC lathes.If the coarse precision of the workpiece is high, the positioning is also guaranteed, or the processing amount is sufficient, it can be processed directly in the processing center without preprocessing.In this process, the coarse datum accuracy and process differences between machining centers need to be considered, and the final may be several or one process.
Similarly, if the pretreatment surface and the processing center operating surface have different standard requirements, the pretreatment should reserve enough processing margin.At the end of a single clamping process for a non-standard CNC machining center, all machining elements, including the pre-machined surface, must be included to ensure the final precision machining accuracy.
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