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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

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

Cooling mechanism of micro-lubrication in machining

The cooling of micro-lubrication machining mainly relies on the fluidity of compressed air to take away heat, and its effect is weaker than that of cutting fluid. Therefore, the chips are required to leave the processed area quickly.To achieve this goal, the following aspects need to be paid attention to:
1. Ensure that the compressed air pressure is stable
The change of compressed air pressure leads to a decrease in the quality of lubrication, and also reduces its auxiliary cooling effect and reduces its role in helping the chips leave the machined surface.Where it is not suitable for purging, the method of auxiliary compressed air chip removal can be used.
2. Reduce the problem of long chips during processing
The shape of the chips is an issue that needs to be paid attention to under the condition of micro-lubrication. It is to achieve short chips and chips and avoid long chips.Specific measures include keeping the cutting edge sharp, researching and adopting an edge shape suitable for chip breaking.In rough machining, a large amount of cutting is used to form thicker short chips, and a high-speed speed is used in finishing, and a small amount of cutting is used to obtain a good surface quality.
Principle: The heat generated by processing will cause the temperature rise of the chips, tools, and workpieces, and the accumulation of chips will aggravate the temperature rise of the tools and workpieces.More than 80% of the heat can be discharged through the short chips, and the chips quickly leave the workpiece. This is a key factor that affects the success of quasi-dry cutting.

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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