Blog – Page 4 – Sismar Laser

Seven principles tell you how to choose a fiber laser

May 30, 2019/0 Comments/in Blog /by linda

Fiber laser source is the heart of laser processing equipment and play a decisive role in process quality,production efficiency,such as on laser cutting,laser welding.

We know every client want to find the fiber laser source,which good quality,high efficient,safety,low maintenance.So what performance should a good fiber laser source have?

7 principles for selecting fiber lasers

1 laser beam quality

Provides important performance in processing quality.

There are three important indicators for the beam quality of fiber lasers.

Beam parameter product BPP
An important indicator describing the quality of the laser beam. The smaller the BBP value, the smaller the representative beam can be gathered, the higher the power density, the faster the cutting speed of the sheet, the higher the smoothness of the cutting surface, and the copper and aluminum. High-reflection material cutting is possible, which improves the production efficiency, quality and application range of cutting.

Spot roundness
The roundness of the spot describes the uniformity of the energy distribution of the spot in different directions. The spot with high roundness has uniform energy distribution in all directions. When doing non-linear cutting, it can ensure the consistency of cutting surface smoothness and cutting speed in all directions, and ensure the quality of cutting products. .

2D focus
non-2D focus
Spot energy distribution
The spot energy distribution is round, uniform, concentrated, or closer to the Gaussian distribution, the higher the center energy of the focused spot, and the better the spot symmetry. The sharper the blade is when cutting, the cutting speed of the sheet is faster, the smoothness of the cut surface is better, and the consistency of the cut seams is higher.

2 laser output power stability

Provides important performance in processing quality

Describe the stability of the laser output power at full output power (10% – 100%) at different output powers and the stability of long-term use.
Output power stability over the full power range
The lower the stability value, the better the stability of the laser at different output powers, ensuring the consistency of the cut surface finish and cutting speed at different thickness cuts. It can improve the authenticity rate of the products to be cut and ensure the stability of the quality of the cut products.

3 core component quality control

Important performance to reduce equipment failure rate

The core components determine the overall performance and quality of the laser. Outsourcing core components can make the overall performance and quality of the laser difficult to control, and the performance and quality of the laser cutter are uncontrollable. The core component life affects the laser’s failure rate and lifetime, and the high core component life determines the laser’s low failure rate and long life, reducing customer downtime and maintenance costs.

4 laser module redundant hot standby design

Important performance to reduce equipment failure rate

The laser module redundant hot standby design can start the hot standby function when the power module of the laser is faulty, replace the faulty power module with the standby power, and the cutting machine can continue to be used normally, thereby reducing the cost of downtime caused by the failure of some power modules.

5 laser electronic dehumidifier

Important performance to reduce equipment failure rate Condensation occurs when the laser cooling system and the temperature of the cooled device are below the dew point temperature of the surrounding humid air, causing corrosion of the device and causing malfunction. The dehumidification device effectively reduces the internal humidity of the laser, avoids condensation due to excessive humidity, reduces damage to the board and power modules caused by condensation, reduces laser failure rate, and reduces customer laser maintenance costs and downtime costs.

6 laser cabinet protection level

Important performance to reduce equipment failure rate

The laser cabinet protection level describes the waterproof and dustproof level of the cabinet. The high IP level cabinet can effectively prevent external dust and water from entering the cabinet, keep the inside of the laser cabinet clean and dry, avoid laser failure caused by dust and water entering the cabinet, and reduce customer laser maintenance. Cost and downtime costs.

7 Electro-optic conversion efficiency (WPE)

Important performance to reduce operating costs

Describe the ratio of the input power to the output power, the electro-optical conversion efficiency is high, the power consumption is low under a certain output power, the laser heat is low, the power consumption cost of the laser is reduced, and the power consumption cost of the water cooler required for heat dissipation is reduced.

More info need,pls kindly contact SIAMAR LASER,by sales@sismarlaser.com whatsapp/wechat:0086 13854105019.

What’s the difference between UV laser and Fiber laser marking machine?

April 28, 2019/0 Comments/in Blog /by linda

What's the difference between UV laser and Fiber laser engraving machine?

Fiber Laser marking machine and UV Laser Marking machines,the both machines can engrave a lot of materials, plastics, leather, metals, and others. However, whats the main difference and why one is much more expensive than the other?Here we are going to explain whats the difference between these two technologies and what are their primary use.

1.Laser generator

UV laser marking machine:

It is developed with 355nm UV laser.

The machine uses third-order cavity frequency multiplication technology compared with infrared laser(fiber laser,Co2 laser). The 355UV light focusing spot is extremely small, which can greatly reduce the mechanical deformation of the material and Small processing thermal effect.

Fiber laser marking machine:

The wavelength is 1064nm.

With regard to the wavelength of laser light, the shorter the wavelength, the smaller and higher accuracy the laser spot, and the smaller the heat affected zone formed during processing, the more exquisite the processing effect.

2.The basic working principle of laser processing materials:

Infrared laser (Co2 laser and fiber laser marking machine)

The substance of the material surface is heated and vaporized (evaporated) by laser, this way, the material removed, this approach is often referred to “thermal processing”.

UV laser marking machine

High-energy UV photons directly destroy the molecular on the surface of the material, this way, molecules removed, the process does not produce high heat and it is called “cold processing

3.The machine structure

The main structure of this machine by outlook may look similar, but the technology that these machines use inside is different.

The fiber laser uses a different power supplier than the UV laser,

Other of the difference is that the UV laser needs to be refrigerated by a water chiller,while the Fiber laser is refrigerated only by air.

4.Application

These machines are designed for different material engraving solutions

The fiber laser engraving machine has as a primary use engrave and offer solutions to the metal marking industries, this machine it can mark, engrave (see the difference between engraving and mark) and carve over all the metal materials.

Moreover, the UV laser is designed to be a practical solution for marking plastics and glass — the UV laser machine it can engrave a vast number of materials, from metals to paper. Check the list of materials that this machines can engrave and mark.

UV laser common applications

Mark: some metals

Mark and engrave: all plastics

Mark: all glass

Mark and engrave: some stones

Mark: paper

Mark and engrave: leather

Mark: fruits

Mark: wood

Mark: ceramic

Mark: garments

And other materials, for more information consult us.

Fiber laser common applications

Mark and engrave: all metals

Mark and engrave: some plastics

Mark: some stones

Mark: some leathers

Mark: some paper

Mark: some garments

For more information about other materials consult us.

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As we can see the laser UV can engrave more materials than the fiber laser. The UV laser it can mark over different materials, but it has less power of engraving and carving over metal materials, it is there when the fiber laser machine it can have a significant advantage over the UV laser at the time of mark, engrave and carve metal materials.

5.Compared advantage and disadvantage of fiber laser and UV Laser

What are the advantage of the UV laser marking machines?

The main advantage of the UV laser technology is the multifunctionality and capacity of engraving over different materials, including non-metal materials. This technology is also able to use the automatization system like rotary engraving, linear guide engraving, conveyor engraving system and Camera Capture System.

What is the disadvantage of the UV laser marking machines?

One of the disadvantages of the UV laser technology is the weak engraving over the metals, if you are looking for a machine that can engrave and carve metals, then the fiber laser engraving machine its going to be a better option.

Whats the advantage of the Fiber laser marking machine?

In simple words, the main advantage of the fiber laser engraving machine is its capacity of engraving, mark and carve at high speed and the metal materials. The fiber laser also can mark different non-metal materials but the result of the engraving on this materials it is not going to be as well done like with a UV laser machine. However, this is extra points for the fiber laser machines, the capacity to work perfectly over metals and to work over some non-metal materials.

Whats the disadvantage of the Fiber laser marking machines?

The disadvantage of this machine it comes when we want to engrave non-metal materials. We can’t engrave or mark several materials that the UV it can engrave, like wood, glass, all the plastics, paper, or in general transparent objects. For example, this machine can engrave ABS and PLA both very common plastics in different products. The engraving over this plastic materials it has 5 to 10% of melting when we use the fiber laser machine, this means that when you touch with your finger its possible that you can feel the surface of the engraving just by touch. It is something that will never happen with the UV laser machine engraving.

Whats the advantage of SISMAR LASER?

Focus on laser filed,provide all kinds of laser products,especial on jewelry field.Good after service.

P.S here are all products we provide,Fiber Laser Marking Machine,Co2 Laser Marking Machine,UV laser marking machine,Green Laser Marking Machine,3D laser marking machine,laser welding machine

How-to: Laser Engraving Photo

April 26, 2019/0 Comments/in Blog /by linda

Today we will tell you how we engrave photos on a laser machine.

When you make the drawing,please save the japge or BMP format.Then you handle the drawing in the photoshop.The step is below.

1.open the drawing,adjust the drawing size,the resolution set into 800-1000,then ok.

2.reopen the drawing,choose the mode,grayscale,then ok

3.open the image-mode-Bitmap-choose the Halftone screen,the frequency is 50-70,the angel is 45,the shape (for the acrylic,it should be round;for the stone,it should be line)

4.Then you input the machine software to let machine work.

And you engrave the materials,the laser power should be less than 30%,we suggest you choose 12-17%.Please not worry,this time it will not happen the missing bits.