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How to prevent deformation during slow wire processing

 Slow-moving wire processing is a very exquisite and exquisite craft, and sufficient preparations need to be made, so that the processed products can be more quality. The slow-moving wire processing technology has a wide range of applications and is a must in our industries. If you want to do better with less technology, you must master all aspects of the processing knowledge. For example, the most common thing is the deformation during processing.  How can we solve it How to prevent deformation during slow wire processing Speaking of slow wire processing, it uses continuously moving fine metal wires as electrodes. Pulse spark discharge is performed on the workpiece, where it generates a high temperature above 6000 degrees. Moreover, if it wants to improve its quality problems and prevent its deformation, it can firstly start from the following aspects. 1. To prevent deformation, it is impossible for the material to have no internal stress. In particular, the internal stress of the que

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

What errors may occur during CNC machining and CNC machining​?

 CNC machining and numerical control machining are a method to control the movement of machine tools and the production process of machining through computer digitization and information digitization. It is an intelligent numerical control device developed as an economical, high-speed, reliable, multi-functional, intelligent, and open structure. CNC machining is also an important indicator that can measure the continuous level and comprehensive ability of a safety technology, as well as the degree of modernization of related science and technology capabilities, especially in aviation, biology, medical and other high-tech cultural industries, and it is also a powerful indicator. reflect. So, what errors may occur during CNC machining and CNC machining? Let us understand together:   The use of approximate machining motion or approximate tool contours causes errors in the CNC principle of machining. The reason why it is called machining principle error is because of the error in machining

High precision plastic mold processing steps

High-precision plastic mold processing steps 1. Heating and pre-plasticizing:
Driven by the drive system, the screw conveys and compacts the material from the hopper. Under the combined action of the heater, screw and barrel outside the barrel, the material is gradually melted, and the material is gradually melted at the head of the barrel. The part has accumulated a certain amount of molten plastic machining. Under the pressure of the melt, the screw slowly retreats. The retreat distance depends on the amount required for one injection of the metering device to adjust. When the predetermined injection volume is reached, the screw stops rotating and retreats .


2. Mold clamping and locking:
The clamping mechanism pushes the mold plate and the movable mold part of the mold installed on the movable mold plate to close and lock the mold part on the movable mold plate to ensure that sufficient clamping force is provided to lock the mold during forming.
3. Move the injection device forward:
When the mold clamping is completed, the entire injection seat is pushed and moved forward, so that the nozzle of the injection machine and the main runner of the mold are completely fitted.
4. Injection and pressure maintaining:
After the clamping and nozzle are fully fitted to the mold, the injection hydraulic cylinder enters high-pressure oil, pushing the screw forward relative to the barrel, and injecting the melt accumulated in the head of the barrel into the cavity of the mold with sufficient pressure, which is caused by the decrease in temperature. To shrink the volume of the plastic machining china, in order to ensure the compactness, dimensional accuracy and mechanical properties of the plastic part, it is necessary to maintain a certain pressure on the melt in the mold cavity to supplement the material.
5. Pressure relief:
When the melt at the gate of the high-precision china cnc machining plastic mold freezes, the pressure can be relieved.
6. Retreat of the injection device:
Generally speaking, after the pressure relief is completed, the screw can rotate and retreat to complete the next feeding and pre-plasticizing process. (Under the general situation of existing injection molding, the movement of the injection seat to withdraw the main gate of the mold has been cancelled. (Perform this action when molding materials with serious salivation, such as PA).
7. Open the mold and eject the plastic parts
After the plastic part in the cavity of the high-precision plastic mold is cooled and shaped, the clamping mechanism opens the mold and pushes out the plastic part in the mold.

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