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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

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

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

Precautions for machining aluminum parts on CNC lathes

​CNC lathe parts are processed with a variety of raw materials. Among them, aluminum parts are one of the more processed parts. When using CNC machine tools to process aluminum machining parts, you want to make the processing models and specifications more stable. Such areas must It is necessary to pay attention to the refrigeration problems of raw materials and the deformation of aluminum die castings after refrigeration. Such things are generally inevitable. At this time, it is necessary to pay attention to the application of diesel engine refrigerant as much as possible. Consider the deformation of raw materials.

Processing technology

Unscientific processing technology can easily lead to deviations in the model specifications of aluminum die castings. To ensure the basic processing technology (such as cutting CNC machine tool processing "first rough and then fine, face first and then hole, first many and then spicy small surface" or welding fixture application "reduce the frequency of clamping and use as much as possible to form fixtures" It is necessary to avoid the machining deviation caused by iron pins on aluminum parts as much as possible.

Basic parameters

Cutting rates, cutting speeds, cutting factors, and tool compensation are all cutting factors that impair the efficiency of processing, so special attention should be paid. Tool selection

When machining aluminum parts, use special-purpose tools as much as possible. Such tools are generally more purposeful. For example, turning tools special for aluminum milling generally have larger rake angles and helix angles, sharper cutting edges, which are more conducive to the processing of aluminum parts (such as anti-chip buildup), and the processed performance indicators will be stronger.

Stress field level

The aluminum material is too soft, so try to pay extra attention to the clamping range. In addition, during processing, the aluminum parts are roughed intact and left for a period of time before the next production process is carried out to remove the stress field.

In addition, it is necessary to pay attention to the milling surface and the demand of cutting fluid during the processing of aluminum parts. There are many factors that impair the efficiency of aluminum processing, so it should be handled flexibly during processing, and the actual problems should be analyzed in depth. Stable machine tools, effective processing techniques and tools, and the technical strength of their operators are all factors that impair product quality.

Tool selection

When machining aluminum parts, try to use special tools, which are generally more targeted. For example, lathes for aluminum milling generally have larger rake angles and helix angles, and the laser cutting edges are sharper, which is more conducive to the processing of aluminum parts (such as anti-chip buildup), and the processing performance will be stronger.

In addition, special attention should be paid to the difficulty of milling and the amount of cutting fluid required in the processing of aluminum parts. There are many factors that damage the credibility of aluminum processing, so it should be handled flexibly during processing, and specific difficulties should be analyzed in detail. Stable machine tools, reasonable processing technology and cutting tools, and the technical level of operators are all factors that harm product quality.

Processing technology

Unreasonable processing technology can easily cause errors in specifications and models of cast iron parts. In ensuring the basic processing technology (such as cutting CNC machine tools

Most of the basic processing technology key links such as "coarse first and then fine, surface first, hole first, many spicy noodles first" or "reduce the number of clamping times, try to use the composition of the tooling and fixture" in the use of fixture tools) Reduce machining errors caused by iron pins on aluminum parts.
There are many reasons for the deformation of aluminum parts, which are often related to raw machining materials, parts appearance, and production and processing specifications. There are several important aspects: deformation caused by blank welding stress, deformation caused by cutting force and cutting heat, and deformation caused by clamping force.




Alan Lan

Foreign trade manager

General Manager's Office | Wonder Group

13712198704 | 15112807161
info@wonders-group.com
https://beryllium-copper.com/
No 3,Zhengda Road,Shatou Village,Chang'an Town,Dongguan City,Guangdong Province,China


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