All-air cooling end-pumped laser marking machine
EP 10- 1 sign
☆ Laser marking uses laser photons as the carrier of energy, and marks the material surface by focusing the high energy generated by ultra-fine laser beams.
☆ Laser marking belongs to non-contact processing, and the workpiece is not deformed.
☆ Laser marking has the advantages of small heat affected zone, accurate machining trajectory, fast machining speed and good quality, and can complete some processes that cannot be realized by conventional methods.
Equipment characteristics:
The equipment is produced by international leading technology, and the core devices are imported from abroad. Its advantages are:
1 is the smallest of its kind in China at present.
2. The light source adopts semiconductor array, and the light-light conversion efficiency is high.
3, the heat loss is low, and a separate cooling system is not needed; There is no cold water tank, which saves the trouble of changing water.
4, less power consumption, about 500 w/h.
5, the performance is stable, the maintenance-free time of the whole machine can reach 15000 hours, and there is no need to install krypton lamp.
6. It can be marked on the surfaces of various metallic materials and some nonmetallic materials, with strong applicability.
7. With the cooperation of computer, marking graphics and parameters can be changed at will.
8, the marking effect is fine, unique, never worn, and anti-counterfeiting.
Applicable materials:
It can mark high-resolution and beautiful images on any metal (including rare metals), engineering plastics, electroplating materials, coating materials, spraying materials, plastics, epoxy resins and other materials.
Application industry:
Widely used in mobile phone buttons, plastic transparent buttons, electronic components, integrated circuits (ic), electrical appliances, communication products, signs, sanitary ware, hardware products, tool accessories, precision instruments, glasses and clocks, jewelry, auto parts, luggage buckles, knives, locks, cookers, stainless steel products, PVC pipes, medical devices and other industries.
Main parameters:
Model EP 10- 1
Laser type/wavelength Nd:YAG/ 1064 nm
Laser peak power ≥20KW
Laser beam quality m2
Laser pulse width ≤8 ns
Power stability (rms, >; 4h)& lt； 3%
Laser mode TEM00
Marking range 50 mm x 50 mm.
70 mm X70 mm
110mm x110mm and so on.
Marking depth ≤1.5mm.
The maximum marking speed is 7000mm/s.
Minimum mark width ≤ 0.0 1 mm.
Minimum character height ≤ 0. 1 mm.
The accuracy of repeated marking is ≤ 10μrad.
Power consumption ≤ 0.4kw.
The power demand is 220v AC/50hz.
Appearance size:
Application example:
● Fine machining: the end-pumped laser beam is of high quality, and the marking spot is less than 40 microns, which is suitable for fine marking.
Observe the photos of stainless steel samples under the microscope.
(beam expander: ×4 field lens: F= 160mm, marking speed: 2000mm/s, material: stainless steel).
● Photo marking: bit icon carving relies on the density of points to realize the presentation of gray scale. The light source focuses on fine points, and the high-frequency laser is perfectly combined with the scanning speed.
Photo marking sample picture
(Beam expander: ×4 field lens: F= 160mm; marking speed: adjustable material: PE tube)
●PE pipe: The pipe is produced by flying marking, and the light source is compact, which is suitable for integration in the production line.
PE tube sample picture
(beam expander: ×4 field lens: F= 160mm; marking speed: 800mm/s; material: PE tube)
● Gold and silver jewelry: the focused light spot of the light source is fine, the peak power is high, and the marking effect is exquisite.
Jewelry sample picture
(beam expander: ×4 field mirror: F= 100mm, marking speed: 100mm/s, material: colored gold)
● Stainless steel whitening: This process requires fine light spot arrangement and high peak power.
Photos of stainless steel whitening samples
(beam expander: ×4 field mirror: f =160mm; Marking speed:1500mm/s; Material: stainless steel).
● Light-transmitting button: the light spot needs to be neat and stable, and the thermal effect brought by multimode light spot is small.
Transparent key sample picture
(Beam expander: ×4 field lens: F = 254mm, marking speed: 500mm/s, material: plastic)
● Auto parts: high material strength, high peak power and fast processing speed.
Sample picture of automobile parts
(beam expander: ×4 field lens: F= 160mm; marking speed: 500mm/s; material: steel)
Answer to the question:
1. The average power of this light source is only 2W. Why can such a small power easily cut a metal business card with a thickness of 0. 16mm?
A: Laser can mark metal mainly because of its high peak power. This is the most important and easily overlooked point.
We take a 50W side-pumped semiconductor laser as an example: at 10KHz, the average power is less than 20W, and the pulse width is100ns; ;
Peak power = average power/(frequency× pulse width) = 20w/(10khz×100ns) = 20kw.
However, the MPL-N- 1064 end-pumped laser source has an average power of 2 watts at 10KHz, but the pulse width is only 7ns.
Peak power = average power/(frequency× pulse width) =2W/( 10KHz×7ns)=30KW.
It can be seen that the peak power of 2 W end-pumped laser is higher than that of side-pumped water-cooled laser, and its cost performance advantage is higher than that of side-pumped water-cooled laser.
2. Fiber laser is affected by the quality and structure of the device, and the failure rate is always high. How does this end-pumped laser source achieve long life?
A: The failure rate of fiber lasers has always been one of the headaches of major manufacturers. This laser light source has good marking effect and can completely replace fiber laser in most occasions. The laser adopts fully enclosed optical path design, which has strong adaptability to the environment. The design of the resonant cavity was completed by a team of engineers with more than ten years of rich experience, supplemented by excellent manufacturability, and the repair rate was less than 3% for two consecutive years.
3. What are the characteristics of end-pumped lasers?
A: 1. The peak power is high, reaching 30KW, which is twice as high as that of 50 W semiconductor water-cooled laser.
2. Narrow pulse width is more conducive to the accumulation of high peak energy.
3. The laser frequency is high, which realizes the perfect combination of spot density and processing speed.
4. The beam quality is good, the m square factor is less than 1.3, and the spot circularity is high.
5. The pulse spike sequence is stable and the spot consistency is good.