Over the last two decades, fiber laser systems have steadily grown in popularity across numerous industries. Used to mark industrial product quantities, etch codes into parts and components, and cut diverse materials, fiber lasers are versatile machines that can complete today&#;s most demanding applications.
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Fiber laser technology was first developed in the s, but it wasn&#;t until the early s that fiber laser systems became viable options for manufacturing and packaging operations. As fiber laser technology became more cost-effective, large-scale operations began using fiber systems to cut materials and mark their goods with durable text and sharp images. Today, fiber laser technology is becoming increasingly accessible to companies of different sizes and specialties, causing many operations to consider adopting fiber laser systems.
Most commonly, fiber laser systems are used to mark products and packaging in the following industries:
If you are looking for a new fiber laser system or are interested in switching over to laser from a different solution, this fiber laser buying guide lays out everything you need to know about fiber laser technology and explains how to select the best system for your needs.
Before we delve into how to select a specific fiber laser system, it&#;s important that you understand some key fiber laser operating principles.
Click here to jump straight to the Fiber Laser Buying Guide&#;s section on system specifications and key considerations.
Fiber laser is just one laser technology available on the market today, along with CO2, UV, and other laser system options. These different laser options each have operating principles that influence:
Although specific principles differ from one laser technology to the next, all of these systems generate beams using the same general process.
Every laser system is built with a &#;gain medium,&#; which is a material that can amplify light. Also known as a &#;laser medium&#; or &#;active medium,&#; gain mediums can be solid, gas, or liquid, and these different materials affect the system&#;s beam qualities. Depending on what kind of material a laser system uses as a gain medium, the system will fall under one of these three categories:
To create a beam, laser systems use &#;pump sources&#; (i.e., external power supplies) to energize the gain medium through a process called &#;pumping.&#; Laser systems can use various pump sources, including flashlamps, electrical currents, and radio frequencies. By pumping the gain medium, laser systems excite the material into releasing photons.
On a basic level, laser systems take these released photons and use mirrors to increase energy and form a beam. Once the beam is strong enough, the system releases it toward the substrate to complete the intended application.
With the above details in mind, we can examine how fiber laser systems work and explore what they can do.
Fiber lasers are solid-state systems that use fiber optic cables as gain mediums. These cables are lined or &#;doped&#; with rare earth ions that are ideal for receiving, storing, and emitting large amounts of energy. Put simply, fiber laser systems mark, engrave, and cut materials by:
These operating principles enable fiber lasers to mark, engrave, and cut a wide variety of materials with reliable speed and accuracy. Other popular laser systems, such as CO2 and UV laser models, can complete similar applications, but not always on the same materials.
Fiber, CO2, and UV laser systems all produce beams at different wavelengths, which significantly influence which materials they are compatible with. See the chart below for a general overview of which materials these systems are compatible with.
Material Category Material Fiber Laser CO2 Laser UV Laser Wood, Paper, and Board Wood &#; &#; &#; Thermal Label &#; &#; &#; Paper &#; &#; &#; Board &#; &#; &#; Metallized Board &#; &#; &#; Glass Glass &#; &#; &#; Glass Fiber &#; &#; &#; Ceramic Ceramic &#; &#; &#; Plastics Polypropylene (PP) &#; &#; &#; Low-density polyethylene (LDPE) &#; &#; &#; High-density polyethylene (HDPE) &#; &#; &#; ABS &#; &#; &#; Polyacetal (POM: polyoxymethylene) &#; &#; &#; Polyamide (PA) &#; &#; &#; Polycarbonate (PC) &#; &#; &#; Polyethylene terephthalate (PET) &#; &#; &#; Metals Steel &#; &#; &#; Galvanized Steel &#; &#; &#; Aluminum &#; &#; &#; Titanium &#; &#; &#; Copper &#; &#; &#; Brass &#; &#; &#;As displayed in the chart above, fiber laser systems offer excellent compatibility with numerous materials, especially metals and plastics. Due to these specifications, fiber laser systems are most commonly utilized by companies working with:
Depending on a company&#;s operational needs, fiber laser systems may be used to cut, mark, or engrave these materials. However, not all fiber systems are capable of completing this full range of applications.
Fiber laser systems may be versatile, but cutting, marking, and engraving all require different specifications to succeed. Cutting is the most demanding application, and success hinges on a few different factors. The two most important elements are:
Due to the substantial power requirements needed to cut materials, most fiber laser systems on the market are designed for marking and engraving applications.
As with cutting, marking and engraving requires different power levels depending on what kind of materials you are working with. If you need to mark or engrave images, codes, and messages on metal products, you will need at least a 10W system. To create these markings at an efficient speed, you should highly consider a system around 50W. For plastics, composites, and other non-metallic materials, a 10W-20W system will suffice.
Regardless of whether you are working with metal or plastic, the more powerful and well-built your system is, the better your results. Consider InkJet, Inc.&#;s FF fiber laser marking machine, for example. The FF is a 50W system designed to create long-lasting codes and highly-defined images (see the marking example to the right and the engraving example below). Thanks to the FF&#;s 50W power output, well-built design, and high-quality software, the system is able to:
With the abundance of fiber laser options available today, it&#;s important to have a firm understanding of a few key considerations as you decide which system is right for you. These factors include:
The best way to know whether a system can meet all of these requirements is to speak with an expert, such as a member of the InkJet, Inc. sales team. However, you can also gather a general idea of a system&#;s capabilities by looking at a few key specifications.
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Below, we explain what these specifications are, why they matter, and how they influence a fiber laser system&#;s performance.
As previously mentioned, laser power has a large influence on what applications a fiber laser system can complete, what materials it can work with, and how quickly it can process products.
Given that laser applications have so many variables, it is difficult to definitively state whether a machine can complete specific tasks by looking at laser power alone. A more helpful practice is to examine your application needs, understand the general power range required to complete them, and then search for systems within that range.
The following table is a good starting point.
Fiber Laser Application Required Laser Power Range Marking/Engraving Thin Plastic Sheets 10W-20W Marking/Engraving Rigid Plastic 30W-50W Marking/Engraving Plastic at High Speeds 50W Marking/Engraving Soft Metal 20W Marking/Engraving Stainless Steel 30W-50W Marking/Engraving Metal at High Speeds 50W Cutting Plastic Sheets 40-80W Cutting Rigid Plastic 50W-100W Cutting Metal Sheets 500W Cutting Metal Parts 1,000W&#;Marking area&#; refers to the space within which a fiber laser system can create codes, images, and markings. Like &#;print height&#; with continuous inkjet and thermal inkjet printers, the marking area determines a laser system&#;s maximum code/image size.
Beyond max code size, marking area is also important because fiber laser systems can be programmed to mark or engrave multiple substrates in one task. For example, if you are placing lot codes on food cans, a large marking area and the right production line setup will allow you to mark multiple cans with one task.
The marking area varies from one fiber laser to the next and can range from a few square millimeters to several hundred. There is no &#;standard&#; marking area, so we recommend that you speak with an expert if you are unsure about which size will meet your needs.
If you plan to use a fiber laser system for marking and engraving, it&#;s essential to find a system that meets your output needs.
For example, if you run a high-volume bottling operation, you need a system that can match the speed of your production line. To meet the requirements of different line setups, fiber laser systems are built with different speed capabilities. The fastest models on the market can operate on lines moving above 900 m/min, although most operations will not require such extreme speeds. Most manufacturing and packaging companies can meet their output needs with a model that operates on lines moving at 200-600 m/min.
Beyond line speed, characters per second is another important marking metric. It refers to the quantity of numbers, letters, and symbols that a fiber laser system can create in one second. Characters per second is particularly important for text-heavy applications and alphanumeric code marking, as it helps companies determine if a system can meet their coding needs.
2,000 characters per second is the standard specification for industrial fiber laser systems, but be aware that this metric is influenced by factors such as code complexity and substrate material. As with other specifications, it&#;s important to speak with the manufacturer or supplier of your potential laser system to discuss how the system will fit into your operation.
Marking precision refers to the level of consistent accuracy at which a fiber laser system marks substrates. High precision means that codes adhere to the intended size, position, and shape of the image design without deviation or error. Lower precision increases the risk of distorted characters, misplaced markings, and inconsistent coloring.
Unlike marking speed or marking area, marking precision is not quantified by a standard metric. Instead, it is influenced by various factors, including:
Beyond these factors, your facility environment and substrate choice will also influence the precision of any fiber laser system. Speak with your different suppliers to learn how accurate their system options are and how your facility/products may influence marking precision.
You should always seek out fiber laser systems that can be seamlessly integrated into your production processes, workflows, and information systems. Most models offer multiple connectivity options (USB, Ethernet, wi-fi, etc.), interface options (digital I/O ports, Serial RS-232, etc.), and other ways to communicate with a PLC or remote system. Matching a system to your existing processes is an excellent way to ensure an intuitive and efficient workflow.
Compared to inkjet printers, fiber laser systems have minimal maintenance requirements. Aside from periodically wiping lenses, replacing filters, and checking system alignment, fiber lasers have few or no ongoing maintenance concerns. Of course, all fiber laser systems are unique, so maintenance requirements may change a bit from model to model.
As you consider your different options, make sure to speak directly with your potential suppliers to understand the day-to-day maintenance needs and long-term requirements that will ensure excellent results. You should also inquire about general support options from your supplier, including:
Fiber laser systems are complex machines, so it&#;s important to partner with a company that can help you find the right solution for your facility, properly install it, and provide ongoing support throughout the system's years in service.
Compared to other marking options, fiber laser systems are known for their relatively high upfront prices. Depending on your power requirements, you should be prepared to spend anywhere from $10,000 to well above $100,000 on a system.
However, higher price tags do not always equal better quality. For example, many coding and marking companies significantly inflate the prices of their laser models to discourage customers from choosing them over continuous inkjet or thermal inkjet printers. The logic is that ongoing fluid purchases are more profitable over time than laser system purchases. As a result, companies like Videojet charge customers close to $50,000 for a laser system, while companies like InkJet, Inc. that do not inflate prices will sell equivalent options for less than $20,000.
To ensure a good deal, you should take an exhaustive look at all of your viable options, compare specifications, speak to an expert, and make an educated decision on which systems are worth the asking price.
Sumiden Wire's steel fibers are typically packaged in 44 lb. (20 kg) or 50 lb. (23 kg) bags depending on customer request. These fibers can be shipped on pallets with 36 - 40 bags (1,600 lb. - 1,800 lb) or smaller lot sizes as needed. The steel fibers are produced in our centrally located Dickson, TN plant and can be shipped across the USA as needed. We maintain an inventory to be able to handle short-notice orders, but larger orders (>5,000 lb.) should be ordered in advance.
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