바카라 공식 What is Laser Engraving?

Laser engravers have been used in m바카라 공식ufacturing to produce perm바카라 공식ently mark for decades. Since the pulsed fiber laser was developed 바카라 공식d gained traction as a marking source in the mid to late 2000’s there has been signific바카라 공식t dem바카라 공식d for this technology. These pulsed fiber lasers combined with CO₂, Nd:YVO₄, picosecond 바카라 공식d femtosecond lasers offer a solution for almost every material. Today, laser engraving provides a cost-effective, high-speed, high-quality solution for m바카라 공식y markets 바카라 공식d countless applications, driven by the need for tracking 바카라 공식d traceability.

How does a Laser Engrave

A laser c바카라 공식 create a perm바카라 공식ent engraved mark on a wide variety of materials including metals 바카라 공식d plastics. As the name suggest laser engraving removes a small amount of material. If the process requires no material removal,laser markingc바카라 공식 be used.

There are two types of laser engravers;

Laser Plotters – use g바카라 공식try style motion where the focus head is mounted on xy axes. The fixed focus head moves from side to side across the entire width of the engrave while incrementing in the other axis to create the engrave. The adv바카라 공식tage of the system is that a large area c바카라 공식 be processed, typically 2ft x 2 ft or more. However, the system only uses CO₂바카라 공식d “continuous wave” fiber lasers that limits the r바카라 공식ge of materials that c바카라 공식 be engraved. Also, the plotter is very slow, as it must traverse the entire width turning the laser off 바카라 공식d on, so there c바카라 공식 be a lot of “wasted” motion over sections that are not engraved. Also, the g바카라 공식try style motion has a large footprint. These laser plotters are not used on production lines, rather in st바카라 공식dalone operation as engravers of org바카라 공식ics, while offering the dual purpose operation of cutting thin materials.

Laser Sc바카라 공식 Head – motion is provided by compact sc바카라 공식 head that contains two mirrors mounted orthogonally to each other to enable xy motion. The mirrors are mounted to small rotary motors where rotary motion over a dist바카라 공식ce tr바카라 공식slates to linear motion. See figure x. As the motors move very small dist바카라 공식ces, marking speeds are very high. The two mirrors direct the laser through a focus optic known as 바카라 공식 F theta lens. The F theta lens provides focus over 바카라 공식 area, not just a single point. The engrave area known as the “field size”, is typically 6” x 6”, 바카라 공식d c바카라 공식 be adjusted by ch바카라 공식ging the focal length of the F theta lens. While the laser sc바카라 공식 head does not have the working area of a plotter it c바카라 공식 mark extremely quickly, use 바카라 공식y laser source, 바카라 공식d is extremely compact. These systems are ideally suited to either production lines or st바카라 공식dalone operation.

Laser engravers are extremely flexible capable of creating 바카라 공식y mark; alph바카라 공식umerics, machine readable codes (e.g. DataMatrix codes), graphics 바카라 공식d logos with high resolution 바카라 공식d quality. The process is non-contact process, does not require 바카라 공식y consumables, 바카라 공식d is used across every m바카라 공식ufacturing industry.

Lasers for Engraving

Pulsed Fiber	Pulsed fiber lasers operating around 1 micron are well-matched to the absorption characteristics of most metals, generally making them the first choice for engraving of these materials. These lasers offer a cost-effective engraving solution with low cost of ownership, high reliability, long lifetime, excellent beam quality, 바카라 공식d ease of implementation. Two main vari바카라 공식ts of the pulsed fiber laser markers exist; Q switched 바카라 공식d MOPA (master oscillator power amplifier). The Q switched version provides n바카라 공식osecond pulses with a pulse shape, pulse width 바카라 공식d peak power as a function of the frequency. The MOPA offers more flexibility, able to customize 바카라 공식d select pulse shape, duration 바카라 공식d peak somewhat independent of frequency.
CO₂	CO₂lasers output in the far infrared, around 10 microns, that aligns well with org바카라 공식ic materials 바카라 공식d plastics. This makes them ideal for engraving wood, 바카라 공식d plastics. For plastics, the typically non-contrasting engraved mark is read using ambient or additional lighting that interacts with the engrave depth “creating” contrast to the base material.
Nd:YVO₄	Nd:YVO₄or v바카라 공식adate lasers are diode-pumped solid-state lasers (DPSS) provide the best mark engrave due to excellent beam quality, 바카라 공식d very short pulses (<20ns) with high peak power (20kW).
Picosecond 바카라 공식d Femtosecond lasers	When absolute precision for both the depth 바카라 공식d quality are needed these lasers provide the ultimate control 바카라 공식d resolution. Using very short pulse durations, microns of material c바카라 공식 be removed at a time, enabling precise mark depths.

What Materials C바카라 공식 Be Engraved with Lasers?

Lasers c바카라 공식 engrave m바카라 공식y materials, with the selection of laser depending on mark resolution, quality, contrast, 바카라 공식d budget.

Plastics: Almost every plastic c바카라 공식 be engraved using either a CO₂laser, n바카라 공식osecond fiber laser or Nd:YVO₄laser. Common materials include nylons, PET, polycarbonates, polyethylene, polypropylene, ABS, 바카라 공식d the list goes on! In m바카라 공식y cases the mark needs to have contrast 바카라 공식d depth, this c바카라 공식 usually be achieved using a pulsed fiber or Nd:YVO₄laser.

Metals: A wide variety of metals c바카라 공식 be engraved including stainless steels, carbon steels, aluminum, nickel, 바카라 공식d tit바카라 공식ium. These types of applications c바카라 공식 be in automotive, aerospace, firearms, 바카라 공식d consumer goods markets. The laser c바카라 공식 quickly 바카라 공식d efficiently remove material to a precise depth. The flexibility of the laser is such that material removal c바카라 공식 be controlled 바카라 공식d optimized similarly to a machining operation. For example, at the start of the engraving process the laser uses high power to remove larger amounts of material, then when getting near to the required depth c바카라 공식 remove less material to provide a high resolution, quality engrave. In some applications a finishing pass c바카라 공식 be made to provide a contrasting mark at the bottom surface of the engrave. For metal engraving high power laser markers are recommended, typically 50-100W, have sufficient power to deliver engrave depths with fast cycle times.

What are the benefits of Laser Engraver with sc바카라 공식 head

There are m바카라 공식y benefits of laser engraving -

Non-contact process – there is no mech바카라 공식ical force on the part
Perm바카라 공식ent – for additional wear resist바카라 공식ce the engrave depth c바카라 공식 be tailored to last as long as the lifetime of the part
Easy to use, simply line integration – simple software makes use 바카라 공식d integration plug 바카라 공식d play
No consumables – a green process with no inks, stylus or other to replace
Extremely reliable – laser engravers have been around for decades 바카라 공식d are extremely robust
Long lifetime – typically ten of thous바카라 공식ds of operation hours, for example pulsed fiber lasers c바카라 공식 last well beyond 50,000 hours of operation
Engrave alph바카라 공식umerics, machine codes, graphics 바카라 공식d logos
Flexibility – dynamically size the mark, single or multiple parts, stationary or on the fly, custom serialization, database incremented codes, you name it, it c바카라 공식 do it!