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 bett...
The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th...
KOVAR parts are commonly used as metal casing materials in the electronic packaging industry. Because they have a linear expansion coefficient close to that of molybdenum group glass, and can produce less sealing stress during the sealing (melting) process with molybdenum group glass, so To obtain good air-tightness, in order to make the metal tube and shell to achieve air-tight sealing, in the entire sealing process, the annealing process undoubtedly plays an important role as a link between the previous and the next. The internal stress generated during KOVAR machining also prepares the material structure for the implementation of the subsequent process-the sealing process of the metal parts. The main purpose of annealing Kovar shell before sealing is to: (1) Eliminate machining stress. When Kovar undergoes plastic machining deformation during cold working, about 10% to 15% of the applied energy is converted into internal energy, which is commonly referred to as internal stre...
We all know that CNC lathe processing thin wall is more difficult, especially the processing of the inner hole, because in the cutting process, thin wall by the role of cutting force, easy to produce deformation.Lead to appear thus ellipse or middle small, two ends big "waist shape" phenomenon.In addition, due to the poor heat dissipation during processing, thin-walled casing is easy to produce thermal deformation, resulting in errors in size and shape.The important problem to be solved is how to reduce the influence of cutting force on the deformation of the workpiece. Next, HW Precision Technology will take you to explore the skills of CNC lathe processing of thin-walled parts.
Numerical control lathe processing of thin-walled parts is a more difficult problem in turning processing, the reason is that thin-walled parts of poor rigidity, weak strength, very easy to deformation in the processing, so that the shape and position error of parts increase, not easy to ensure the processing quality of parts.Using the characteristics of high machining accuracy and high production efficiency of numerical control lathe, and considering the effect of technological problems on the machining quality of parts, the experiments on the clamping of the workpiece, the geometric parameters of the cutting tool and the programming of the program were carried out to overcome the deformation of thin-walled parts in the process of machining effectively.The machining accuracy is guaranteed, which provides a good basis and reference for better processing of thin-walled parts in the future.
No matter what form CNC lathe machining parts, the first must start from the view of the part diagram.The figure shows that the thin-walled parts processing, easy to produce deformation, here not only clamping is not convenient, but also the parts to be processed that is difficult to process, the need to design a special thin-walled casing, shaft protection.
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