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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,

Classification introduction of automobile reducer

There are two types of automobile reducer commonly used, single-stage and double-stage, which are arranged horizontally or vertically on the axle housing. The automobile reducer housing with two drive axles has two types: through and non-through. The through-type reducer shell is divided into two types: single through and double through. The reducer housing of some segmented axle housings is integrated with the middle section of the axle housing.

Heavy-duty trucks and mining dump trucks are required to have a larger reduction ratio and a larger ground clearance in order to adapt to multiple uses and complex road conditions. The heavy-duty vehicles produced by some foreign automobile manufacturers use planetary gear wheel reducers and bevel gear planetary wheel reducers. The advantage of this wheel-side reducer structure is that it has a smaller outline size to obtain a larger speed ratio, and it can be arranged inside the wheel. The materials of foreign reducer shells are gray cast iron, ductile iron, malleable cast iron and aluminum alloy.

A digital programmable controller is used on both automatic lines, and a rotary power head is used to adapt to the hole processing of various reducer shells and covers at different positions. An automatic inspection and compensation device is also set on the inner hole station of the fine wok.

In the multi-segment automatic line processing, the boss plane of the bearing cover is milled first, and then the second connecting surface of the reducer shell is processed. This plane is used as the positioning reference to process the flange end surface and outer circle, stir the bearing hole, and mill the inner end surface. , Drilling and tapping bearing cap bolt holes, drilling oblique oil holes, cutting internal threads, etc., clean and inspect after *. After installing the bearing cover, machine the earring hole and the oil injection hole from the rough, semi-finished, and refined shaft tube mounting holes at both ends. *After finishing the two pairs of bearing holes and the inner end faces of the driving bevel gear and differential assembly. For 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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