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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 bett...

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 o...

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 o...

Analysis and improvement of vehicle water radiator

 

Analysis and improvement of vehicle water radiator, whether it is to reduce the number of water pipe rows in the thickness direction of the radiator core or reduce the geometric size of the water pipes, the result will cause a reduction in the heat dissipation area, which will obviously affect the heat dissipation of the entire radiator performance. In order to make up for the loss of performance due to the reduction of heat dissipation area, the most effective method is to develop high-efficiency heat sinks. The louver-shaped zigzag heat sink is a high-efficiency heat-dissipating element, which is the result of increasing the local heat release coefficient after developing a cut on the heat transfer surface in the direction of the air flow. Polhausen explained the basic way to improve the heat dissipation coefficient of the notched heat sink, and applied this theory to various notches formed at intervals. According to sand, if the fluid velocity and physical parameters are the same, the heat release coefficient is inversely proportional to the cut spacing.

Japanese car water radiator adopts high-efficiency louvered heat dissipation belt. Under the premise of increasing the heat release coefficient by %, the number of water pipes is reduced by half, the volume of the core body is reduced by 50%, and the weight of the whole machine is also reduced, which fully demonstrates the high efficiency. The role of heat dissipation components. Russia widely uses cold-rolled finned tubes as heat exchange elements, which also solves the high-performance problem of heat exchangers on vehicles and ships.

When designing a car water radiator, it is necessary to try to overcome the current mismatch between the heat dissipation capacity of the water radiator belt and the weight of the water radiator. The development of high-efficiency air-side cooling components is the core and foundation of the development of high-performance, high-compact, lightweight vehicle water radiators, and it is also an effective way to develop a new generation of water radiators for main battle tanks.

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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