How to choose the suitable tools for CNC Router when working different material?
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Jinan Xiaojia CNC Machinery Equipment Co.,Ltd
As is known to all, we need to choose different cutting tools according to different materials, when using CNC Router.So which type tools suit what material?
There are a lot of people do not know much about it, here we summarize it simply , I hope they are helpful to you.
1.MDF material
We recommend the double long chip spiral milling cutter tool, it has two high-capacity flutes.Double-edged design, making it a good chip removal function, and achieve a good tool balancing.In the processing of MDF, the material is not black, do not smoke, tools can work with long life.
2.Metal
We recommend to use single edged, double edged straight slot flat bottomed cutter tool.
3.High MDF and Solid wood
You can use edge milling cutter tool.
4.Cork, MDF, native wood, PVC, acrylic
Deep relief working, can use single edged helical ball end milling cutter tool.
5.Metal Model
We recomend the tungsten steel milling cutter, plated purple black hard ti.
6.Rough machining particle board
Multi stripe milling cutter tool is suitable.
7.Cutting mirror surface Acrylic
Diamond engraving tool is better
8.Precision engraving on plastic material
Round bottom tool is good choice.
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The application of laser cutting machine highlights the advantages of his performance in various industries , but at the same time in the laser cutting machine industry also has some non fixed factors to restrict his development, according to the research findings in recent years, the development of laser cutting machine in the development stage, which is not in conformity with the current rapid development of science and technology.
With the continuous improvement of fiber laser cutting technology, the performance of fiber laser cutting machine is becoming more and more outstanding. High photoelectric conversion efficiency and low cost of maintenance and maintenance costs, by now many enterprises of the favor, but also makes the fiber laser cutting into the industry is currently one of the most valuable technology.
Laser beam focusing is very small, which has a very strong energy, and it is applied to the cutting of many characteristics. But in recent years, the development of laser cutting machine can be said to have some stagnation, this is mainly because there are some key technologies can not make a breakthrough progress, let us introduce what factors restrict the development of laser cutting machine.
One, laser light energy convert into a surprising heat to keep in a very small area, can provide
(1) narrow sided slot;
(2) the minimum heat affected zone of the adjacent cutting edge;
Two, the laser beam does not exert any force on the workpiece, it is non-contact cutting tool, which means that
(1) no mechanical deformation of the workpiece;
(2) no tool wear, no conversion tool;
(3) cutting material without consideration of its hardness, that is, laser cutting ability is not affected by the hardness of the material being cut, any material can be cut.
(3) minimal local deformation.
Three, the laser beam is controllable and has high adaptability and flexibility.
(1) it is convenient to combine with the automation equipment to realize the automation of cutting process;
(2) because there are no restrictions on cutting the workpiece, the laser beam has infinite profile cutting ability;
(3) combining with computer, automatic typesetting, saving material.
Laser cutting machine is applied in many fields, such as electronic industry, automobile industry, hardware industry, shipping industry, precision instrument industry, etc..
In the specific operation, because of the characteristics of the product itself, we need to debug the parameters of the equipment to get the best effect, and some factors will affect the whole cutting effect.
From the above we can see that there are many factors that affect the quality of fiber laser cutting equipment, so we need to debug the best balance point when we cut the specific products. Sometimes if the control is not properly, it is possible to cut the accuracy and quality of a great difference, how fast, accurate, effective control of these factors is very important.
Laser cutting machine or numerical control punch, the five big difference tell you which is the most suitable for you?
Copy from www.xjrouter.com Jinan Xiaojia CNC Machinery Equipment Co.,Ltd
Today, with the requirements of the market to the rapid replacement of product requirements, the flexibility of the processing equipment to put forward higher requirements. And the application of laser cutting machine, bring the new vitality of the processing industry. Compared with the traditional CNC punch, laser cutting machine has the advantages of 3C, 3S: cool, clean, calm, sure,savety,saving, but in the whole process on the market, laser cutting machine and CNC punching bed have equal shares, why? Then the following small series of knowledge, so that we understand the laser cutting machine and CNC punch.
First, processing materials
Laser cutting machine can cut metal materials (including black metal, non-ferrous metals, such as carbon steel, stainless steel, silicon steel, galvanized sheet, aluminum alloy,...) , non metal materials (acrylic, plastic, wood, cloth, leather, carpets and other materials). Carbon steel with a thickness of 20mm.
Numerical control punch can only be made of metal materials, the thickness is generally not more than 6mm.
Second, processing flexibility
From the perspective of flexibility, laser cutting machine has advantages, can cut any shape, size of holes, and punch can only cut a few specifications of the hole (32 position of the turret is large), in case of large size hole, the use of small die stamping process, efficiency is low, mold wear seriously.In order to meet the needs of different products processing, CNC punch must be purchased a lot of molds (different sizes, the same size but for different thickness of the material), further, it is necessary to prepare a warehouse for the storage, and increase the demand for mold management. In addition, numerical control punch on the flatness of the plate, the surface cleanliness requirements higher.
Third, accuracy, roughness
Laser cutting machine belongs to non-contact processing, no stress, no deformation, positioning accuracy of 0.03mm, the workpiece accuracy is 0.1mm, the cutting section is smooth and smooth, the machining accuracy of the numerical control punch is slightly worse.
Forth, efficiency, cost
The original use of a factory press + cutting machine, cutting plate machine after the need to transfer to the punch, compared with laser cutting machine, need more manual.
Comprehensive comparison of the laser cutting machine (3kW fiber laser) and the cost of the punch: power, supplies (laser cutting machine material is the focus lens, ceramic body, nozzle, mirror, gas, etc., the material is a mold, etc.), artificial, equipment depreciation, the result is that the laser cutting machine costs RMB179 yuan / hour, punch RMB174 yuan / hour.
In view of the factory products(Metal, thickness 1.5 ~ 3mm) for processing efficiency estimation, the result is that the use of laser cutting machine is only 0.2 hours, and the use of 0.7 hours.
Obviously, laser cutting machine has obvious advantages in efficiency and cost.
Of course, if the product is large, the use of special design of the mold (such as the porous mold, but this will damage the flexibility), it can improve the efficiency of the numerical control punch, until the laser cutting machine.
Fifth, function, limitation
Laser cutting machine and CNC punch press have their own limitations. If need to achieve blinds, stretching, sink hole, hole flanging, strengthen tendons, stamping process, it is only used CNC punch press; and for saw blade with silencing seams, only the laser cutting machine can perform.
The use of a period of time after the laser engraving machine, engraving and cutting smoke.
Dust has a corrosive effect on the rail, so regular maintenance guide. ?Power off the laser cutting and carving machine,clean the rails with a clean soft colth.Then drop the oil on the rails,make the slider on the rail rolling back and forth, to ensure that the lubricating oil into the slide block.Then roll the slider on the guide rail, and then put the rail on the rail.Please note that when the guide is not fixed, mounted on a fixed pin, maintain level, and then fixed with the slider and the slider, and then the lens, adjust the optical path of X axis.
2.Wipe focus lens and mirror
After using the laser cutting machine a period of time,dust will be attached on surface of focus lens and mirror.It influces the effection and accuracy of laser working.Almost one week,we should clean the focus lens and mirror.(According to the use frequency of laser cutting machine)
Clean the focus lens and three mirrores with dry alcohol, professional cleaning mirror paper (or clean soft cloth).
3.Add oil on bearing
There are a large quantity of bearing in laser cutting machine.In order to ensure good cutting and carving effect,we should add oil on some bearing regularly (except oil bearing).Wipe the surface of bearing with a clean soft cloth,then such up the oil with needle tube and add oil on bearing,at the same time,rotating bearing slowly.
4.Synchronous belt elastic adjustment
There are some synchronous belts in laser cutting machine.If the synchronous belt is too slack,the effect of engraving small letter will be heavy shadow.If the synchronous belt is too tight,it is easy to hurt.So we need check the belt after using some time for make sure the effect of working and reduce the noise of working.
5.Maintenance of laser tube
Laser tube is a very important part of laser cutting machine,now we talk about how to maintenance laser tube.As we know,when we use laser tube,we must use water cooling.After long time,there will be some white scale.We can add little vinegar or weak acid solution in circulating water.This way will clean the white scale,then export the dirty water with clean water.Pls note,when clean the laser tube,keep it no laser.
Nozzle is used for spraying gas assisted to a cutting area, in laser cutting machine generally use coaxial (airflow and the optical axis coaxial nozzle, belonging to laser cutting machine parts of, not to belittle the so small a nozzle, in fact, there are about it the universe and get bad will influence the cutting quality.
1. Shape of nozzle
The common shape of the nozzle, as shown in the picture, you can see the shape of the spray hole has a lot of kinds, cylindrical, conical, and scaling.
2.Nozzle hole requirements
The nozzle hole size must be allowed to pass through the beam and avoid contact with the nozzle wall. Obviously, the smaller the diameter of the nozzle, the more difficult the beam alignment. In addition, the auxiliary air flow from the nozzle must be coupled with the removal of the fusion product and the enhanced cutting action. The hole wall of the nozzle hole should be smooth. To ensure the smooth flow of air, to avoid the disorder and affect the quality of the cut.
3.The distance between the nozzle and the material surface
The coupling of the nozzle flow and the workpiece is a gas dynamics problem, the air flow pattern and the spacing between the nozzle and the workpiece are important variables. If in the laser cutting machine, nozzle from the workpiece surface too close, will produce the lens of strong back pressure, influence of sputtering cutting production by the ability to disperse; but the jet from the workpiece surface too far, resulting in unnecessary loss of kinetic energy. The distance between the workpiece and the nozzle is generally controlled by 1~2mm. The cutting of the shaped workpiece is mainly by the automatic adjustment height device, such as the contact, the back pressure and the inductance and the capacitance change and so on.
4.Size of nozzle
The size of the nozzle is affected by the size of the laser cutting machine, the size of the thermal reaction zone and the cutting quality of the cutting width. As the nozzle diameter increases, the heat affected zone is narrow, the main reason is that the air flow from the nozzle to the cutting area matrix material produced a strong cooling effect. The nozzle diameter is too large to cause the cutting seam is too wide, and the nozzle is too small will cause the calibration difficulties, to induce the beam is small nozzle cut. The common nozzle diameter is 1~1.5mm.
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