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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

Hydrostatic guideway of CNC machining lathe

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

Introduction of KOVAR parts

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 stress,

Extended hob life benefited from micro lubrication machining

Micro-lubrication quasi-dry machining is a new type of machining method that replaces traditional cutting fluid with micro-lubrication and has been applied in some enterprises. Under quasi-dry cutting conditions, the cutting process, machine tool design, micro-lubrication device, lubricant, operation and cutting tools are different from traditional wet cutting. The theoretical basis of quasi-dry cutting is far less mature than traditional cutting fluid metal cutting theory. The processing technology of dry cutting needs to be explored and accumulated based on the workpiece material, the selection of tools and the coating, so that the technical characteristics of quasi-dry processing can be brought into play.
The working principle of Doppelio’s built-in micro-lubrication device is to generate micron-level suspended oil particles through a precision built-in oil mist generator powered by air. Spindle) is transported to the cutting area between the tool and the workpiece almost without loss, or sprayed to the cutting area through pipelines and external nozzles to participate in cutting lubrication.
In gear machining, three nozzles are usually required to spray micron oil mist particles into the cutting area. One nozzle keeps a certain distance and sprays the rake face of the hob. The other two nozzles are arranged on the left and right of the hob blade, the hob blade and the workpiece. The oil film between the contact points improves the friction between the hob blade and the workpiece material, inhibits temperature rise, and at the same time improves the quality of the machined surface, and has the effect of preventing the machined surface from rusting, and the life of the hob is prolonged.
In addition to the damage caused by impurities in the workpiece material, the life of the hob is mainly the damage to the hob and the coating caused by the repeated heating and cooling of the hob during cutting fluid processing. Hot brittleness”. During micro-lubrication quasi-dry machining, ultra-fine oil mist particles are conducive to penetrating into the cutting area to form an oil film (pressureless cutting fluid may not effectively penetrate into the cutting area), reducing “hob-workpiece” and “hob-cutting” The friction between them plays the role of restraining temperature rise, reducing hob wear, preventing adhesion and improving the quality of workpiece surface and hob life.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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