Mention picosecond laser,many people first think of precision applications in the field of medical beauty.And in high-end manufacturing,this pulse is only one trillionth of a second ultra-fast laser,with almost no thermal damage “cold processing” Glass,ceramics and other hard and brittle materials,to achieve high precision machining that is difficult to achieve by traditional methods,and become the core tool to solve problems such as edge chipping and microcracks.
So how exactly is this magical “cold processing” achieved?How can it become an indispensable tool in the field of precision manufacturing?This article will explain the three dimensions of principle,performance and typical applications.
As a typical representative of ultrafast laser,picosecond laser suppresses thermal diffusion with extremely short pulse(1ps = 10⁻¹²s),realizes “cold processing” with almost no thermal effect,and avoids problems such as melting and microcracks at the root.In terms of wavelength selection,infrared wavelength(1064nm)material has good adaptability,especially in glass,ceramic and other transparent hard brittle materials.It can be said that the infrared picosecond technology is mature and cost-effective, and can achieve high-quality and high-efficiency precision machining.
With “fast” heat dissipation and “prec” material selection, infrared skin-second lasers have established an irreplaceable position in the field of precision machining thanks to this dual characteristic.
△ During a Test of a Huachuang Hongdu laser
The theoretical advantage is expected,but the performance of the laser itself is the cornerstone of the processing effect when it comes to industrial applications.Huachuang Hongdu Infrared Picosecond Laser,is through three core product advantages,will ” fast ” and ” accurate ” into a real productivity.
△ General Technical Parameters of Huachuang Hongdu Infrared Picosecond Laser (Can be Customized on Demand)
① Higher heavy frequency,faster processing rhythm
△ Huachuang Hongdu Infrared Picosecond Laser
At the same level of pulse energy,we are constantly increasing the upper limit of the repetition rate.Taking the 90W high-power infrared picosecond laser as an example,its repetition rate covers 30-2000kHz,Compared with the 20kHz@60W infrared picosecond solution commonly used in the market,it can output stronger pulse energy in a unit time, thus significantly improving the processing efficiency.In cutting or drilling operations,it can complete the processing task in a shorter time to help meet the production capacity challenge.
② Better Beams, Stronger Depth Capacity
△ Infrared Picosecond High Power Typical Beam Mass (Left) Typical Spot (Right)
Beam quality is the “scale” to measure the processing ability and processing effect of laser.High-energy infrared picosecond laser has superior beam quality M²<1.3,This makes the output spot of the laser show a nearly Gaussian distribution,which can maximize the energy utilization under the Bezel cutting head, and achieve stronger processing capability and higher precision.
During cutting,it manifests itself as a stronger penetrating capacity and a more straight cutting side; When marking,more fine lines and clearer patterns can be achieved. This ensures that from a micron mark to a centimetre thick plate cutting,the results are equally excellent.
③ High reliability,long-term operation stability
Long-term stability of industrial equipment is the lifeline of production.Our stability stems from a triple underlying design:
△ Infrared Picosecond High Power RMS Power Stability Test Results
In addition,modular design and rich industrial interfaces(RS232/GATE/ TRIG,With PSO function),support quick maintenance and flexible integration,adapt to all kinds of automated production lines.
It is by virtue of “higher repetition rate,better beam,stronger reliability” hard-core strength,Huachuang Hongdu Infrared Picosecond Laser can be in many high-precision fields.Next,let’s take a few typical application cases to intuitively feel its excellent performance in actual processing.
① Full screen / ultra thin glass cutting
△ Full Screen Cutting (No Collapsed Corners)
The evolution of consumer electronics to full screen,curved screen and foldable screen puts forward higher requirements for gle” appears here.It acts on the material with extremely high peak power in a very short time.It directly vaporizes the material by the principle of light ablation and almost does not transmit heat.Therefore,when cutting ultra-thin glass,it can obtain high verticality,no micro-cracks,almost no damage to edge strength perfect section,save the subsequent complicated grinding,strengthening process,truly realize “cutting is the final effect.”
② Ultra-thick Glass Cut in One Slice
△18.5mm Ultra-thick Glass “One-size-fits-all” (Not the Maximum Cutting Thickness)
In the field of special instruments,scientific research equipment or new energy,hard and brittle materials such as glass with thickness of 10-20mm or even thicker often need to be processed.The challenge of this type of thick plate cutting is to ensure that the incision is vertical,the side is smooth and there is no internal damage.
High-energy infrared picosecond laser,with high single-pulse energy and excellent beam quality,can effectively converge laser energy and penetrate thick plates.As shown in the figure,18.5mm or more thickness(non-maximum cutting thickness)of glass can be cut in one go,with a steep section,no taper and minimal heat affected zone.This solves the problems faced by traditional methods in thick plate processing,such as flaking,delamination and rough section,and realizes the leap from “can cut” to “cut well.”
① Precision Marking of Medical Devices
△ Chromium-plated Surgical Knife Marking
The marking of high-end medical devices such as surgical instruments must be done without absolutely damaging the surface corrosion coating (such as chrome plating),introducing any corrosion starting point, and not affecting the mechanical performance of the device.
Infrared picosecond laser through precise ablation control,It can only remove the very thin surface material,or cause the change of the surface microstructure of the material by cold working,so as to form the permanent,clear and high contrast mark under the premise of not damaging the underlying metal.This marking is resistant to high temperature sterilization and corrosion,which fully meets the strict requirements of traceability and safety in the medical field.
② Internally carved/blackened glass
△The Glass was Black
Marking or sculpting patterns inside glass (engraving),or forming high contrast black marks on the surface of glass (blacksmithing),are common requirements in industries such as gifts,home appliances, and automobiles.The difficulty is how to avoid glass rupture and achieve a stable aesthetic effect.
The IR-pulsed laser can precisely deposit the energy in the glass or in the very shallow layer of the surface .By controlling the parameters,micro-bubbles can be formed inside the glass to form scattering patterns,or dense micro-nano structures can be formed on the surface to form deep black marks.The whole process has no macroscopic damage to the glass body,the mark is clear and firm,beautiful and durable,the texture is full,taking into account the function and artistic nature.
In addition to the above core applications,infrared picosecond laser in semiconductor material cutting, sapphire window processing, ceramic circuit board drilling,polymer material precision micro-processing and other fields also show a strong potential.It is penetrating into more high-end manufacturing links with its versatile flexible processing capability,and becoming a key tool to break through the traditional craft boundary and realize micro-nano scale manufacturing innovation.
In the field of high-end manufacturing,the pursuit of processing quality and efficiency has never stopped.Today,”faster, better, thicker” is becoming the new normal for ultra-precision machining.With excellent process performance,Huachuang Hongdu Infrared Picosecond Laser is facing all kinds of strict processing requirements and continuously providing customers with stable and efficient solutions to help the industry make new breakthroughs.
If you would like to know about the application potential of infrared Picosecond lasers in specific materials or processes,you are welcome to contact us at any time!
Telephone:0551-6565 2939
Mobile phone:199 6505 6259 (Marketing Department )
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