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...
The iron core is an important part of motor products, which are generally made of silicon steel plates with a thickness of 0.35 mm and 0.5 mm. Core stamping manufacturing equipment is important in all aspects of motor manufacturing. Currently, China’s high-speed precision stamping iron filing and core are automatically rivet, iron core is 3 rows, iron core twist groove and rotary rivet, iron core double truss rivet, iron core double row rivet, twist groove rivet, semi-circular stator core rivet, Stator core multi-stack,
For example, the combination of long straight stator core coil and laminated rivet high-speed precision stamping production technology is not inferior to international advanced technology.
Among them, the 3-core high-speed precision stamping manufacturing process for wedge-shaped rivet products is a core material of 50W470 silicon steel plate with a material thickness of 0.5 mm and a material width of 307.5 mm.
These include material take-up equipment, S-leveling equipment, material supply equipment lubrication equipment, high-speed precision presses, and large-scale precision progressive dies. Nail holes for automatic punching guides, rotor piece rivet processing holes, rotor marking holes, rotor weighing holes, rotor groove shapes, rotor plate step holes, rotor plate stacking points, rotor plate holes, rotor chip blanking stack rivets and torsion grooves, The stator chip notch, stator chip marking hole, stator piece weighing hole, stator groove shape, stator plate stack rivet point, stator piece internal hole, and stator parts are punched and riveted for multi-station multi-process continuous punching. It is done and three sets of stator core products are completed at once. The thickness of the core stack is 105 mm. The outer diameter of the stator core is 110.52 mm, and the outer diameter is 55.1 ± 0.01 / 0.02 mm.
It is produced by a large high-speed precision press with a production capacity of 300 tons. The stamping speed is changed from 280 times per minute to 320 times, and the core product is automatically output during the stamping process.
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