About Fiber Laser Cutting Machine
The trends of Chinese fiber laser cutting machine.
How is the market for fiber laser in China ?
We can see more and more fiber laser cutter using in metal fabrication.Not only is it popular in job shops that provide contract processing service.But more and more production companies are using fiber laser cutting machine in-house producing their own products.In the next 8 years, China’s laser cutting machine market demand will reach more than 100 billion yuan(14.705 billion dollars) .Up to 2019,there are nearly 100 laser brands selling and producing fiber laser cutting machines.Of all these brands ,about 25 brands with at least 4-5 years history in fiber laser are able to build full series laser machines .Producing all table size ,low to high power .Large thick steel plate laser cutting machine will be more popular in China’s construction machinery industry.The global laser manufacturing technology is developing rapidly.And the gap between China and international laser technology has decreasing.High-end laser processing equipment is absolutely made in China without any problem, resulting in a 90% laser machine share in China.Most of these machines use fiber lasers from either IPG Photonics or Chinese fiber lasers from Raycus or Max Photonics laser.The 2D fiber laser cutting machine market is currently the fastest-growing laser market.There are many brands of laser equipments from Europe ,Japan ,Turkey America ,,,anyway You see many more laser brands from China。In most machine tool exhitions ,metal fabrication exhitions or fair ,most of booths with fiber laser cutting machine are from China.
How to choose suitable gas and pressure for fiber laser cutting machine?
During the laser cutting,we need choose different cutting gas according to different materials.The choice of cutting gas and pressure have great influence on laser cutting quality.Combustion-supporting and heat dissipation, timely blow away the molten stains produced after cutting,and prevent cutting molten stains upward rebound and get into nozzle,and protect focusing lens,etc.
First,the influence of cutting gas and pressure on cutting quality.
1) The Cutting gas help to heat dissipation and combustion,blew away the molten stains, to get good quality cutting face.
2) When the pressure of cutting gas is not enough,cutting quality will be affected as follows:Generate molten stains when cutting, cutting speed can’t meet requirement,affect production efficiency.
3) When the cutting gas pressure is excessively high will affect the cutting quality:cutting surface is more rough, and kerf is wide; At the same time will cause partial melting of the cuttingsurface, unable to form a good cutting surface.
Second,the influence of on cutting gas pressure on punch a hole.1)When gas pressure is excessive low,laser will difficult penetrate the cutting board,and the time length to punch a hole will increase,lead to low production efficiency.
2) When the gas pressure is too high, cause melting of the laser punching,form a larger melting point, thus affecting the quality of the cutting.
3) When laser drilling,Generally use the higher gas pressure to punch the thin plate,and for thick plate punching, using the low gas pressure.
4) When laser cutting machine cutting ordinary carbon steel,the thicker the material thickness, the cutting gas pressure relatively lower.And when cutting stainless steel, although cutting gas pressure not change with the thickness of the material,but the cutting gas pressure is always in a state of high pressure.
In a word, when select cutting gas and pressure,we must adjust according to actual condition when cutting,should choose different cutting parameters according to the specific situation in specific application.
How to choose laser source? Max,Raycus or IPG?
Is Max (Maxphotonics) better than raycus?
In fact, their quality is not much difference than Before , 3 years ago, Max failure rate is much higher , but currently, highly improve.They all have their own advantages:
1. Raycus is biggest supplier of laser source in China, longer than Max
2. Raycus is supported by China government, they have strong R&D capability
3. since 2004,we cooperate with Raycus, so we are strategic partner with Raycus , they give us better price you know ,every factory has their stable supplier, if buy large quantity from one supplier, who will give better price
For Max, we use less , so their price is higher than Raycus for us to buy.but in fact, Max is also good , Max is located in Shenzhen, they are yonger than Raycus, but now their market occupation is increasing.
Especially, during this virus period, Raycus is in Wuhan, which is most severe district in China. So it affected Raycus a lot, so many orders waiting in Raycus , it is difficult to get laser source from them . Now for XT , we also use Max now, because of delivery time ,Raycus laser source affecting production time .
what is advantages of IPG laser source?
- High market share, a certain degree of reaction to brand strength and quality
- low failure rate, only 3%
- light power we can see in real time
- after-sale service spots all over the world, problems can be resolve in time
- High photoelectric conversion rate. Can reach 45%, other brands are only about 25%
- German brand ,good quality，laser power weakened slower than other brand.
How to use fiber laser cutting machine?
Starting the laser cutting machine before three tips you should know:
1. Before starting, pay attention to check whether the power voltage matches the rated voltage of the laser cutting machine to avoid unnecessary damage.
2. Firstly,check whether the exhaust pipe is placed at the air outlet to avoid obstructing air convection.
3. Secondly,check whether there are other foreign objects on the laser cutting table.
Twelve steps to learn how to use fiber laser cutting machine:1. Firstly,Fixed cutting material. Fix the material to be cut on the work surface of the laser cutting machine.
2.Secondly, Adjust the parameters of the equipment according to the material and thickness of the metal plate.
3. Select appropriate lenses and nozzles, and check them before starting to check their intact condition and cleaning condition.
4. Adjust the focus. Adjust the cutting head to the proper focus position.
5. check and adjust the nozzle center.
6. Cutting head sensor calibration.
7. Select the appropriate cutting gas and check whether the spraying state is good.
8. Try cutting the material. After the material is cut, check whether the cutting end surface is smooth and check the cutting accuracy.
If there is an error, adjust the equipment parameters accordingly until the proof meets the requirements and is available.
9. Programming the workpiece drawings and corresponding layout, and import the equipment cutting system.
10. Adjust the position of the cutting head and start cutting.
11. During the operation, the staff must be present at all times and carefully observe the cutting situation. If there is an emergency situation, they need to respond quickly, press the emergency stop button.
12. Check the cutting quality and accuracy of the first sample.
The relationship between the cutting focus and metal materials:
The following are three different situations of laser cutting machine.
1.Cutting focus on the surface of workpiece.
It is also called 0 focal length. In this mode, the smoothness of the top and bottom surfaces of the workpiece is usually different. Generally, the cutting surface close to the focus is relatively smooth, while the lower surface away from the cutting focus appears rough. This mode should be based on the process requirements in the actual application.-laser cutting machine.
2. Cutting focus on the workpiece.
It is also called negative focal length. The cutting point is positioned above the cutting material. This method is mainly suitable for cutting materials with high thickness. But the disadvantage of this method is that the cutting surface is rough and not practical for high precision cutting.
3. Cutting focus inside the workpiece.
It is also can call positive focal length. Since the focus is inside the material, the cutting airflow is large, the temperature is high, and the cutting time is slightly longer. When the workpiece you need to cut is stainless steel or aluminum steel, it is suitable to adopt this mode.When using fiber laser cutting machine, operators can adjust flexibly according to actual needs.
1.We know some customers are cooperating with CNC or CO2 machine before, but its different. Fiber laser machine is total different machine from CNC machine, they have different techinology. You still trust a company who is professional in CNC machine, not in fiber laser cutting machine.
2. what would be the difference between raycus and IPG ? IPG is Germany brand, very famous fiber laser source in market, and it’s original imported, so price is a little higher than Raycus. Raycus brand made in China, quality also stability. We think Raycus is more cost-effective than IPG brand. But some customers very like and trust “Germany Brand”, so IPG is optional. The only obvious advantage of IPG is it is more durable than Raycus. For example, if using frequency is same, IPG can be durable for more than 8 years, Raycus can be 7 years.
3. Can we get the servicing of IPG in India? Yes, we you can surely get servicing of IPG in India. Please check attached Statement from IPG. Because, once we sold IPG laser machine to India, we will sign a contract with IPG company, and they will sign on this statement, and you can show it to India IPG, when need service from IPG. So please do not worry about it.
