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Slm 3d printing machines
Your Partner in Selective Laser Melting
SLMDiscover the limitless potential of our selective laser melting technology.
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“With the NXG XII 600 supply chains and inventory models will change forever. It is here, it is working. It’s not a twinkle in one of our engineer’s eyes. It is ready to order.“
Sam O'Leary, CEO
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MEDICINE
3, 2, 1 lift-off. Let us help you explore new worlds.
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TOOLING
Revolutionizing health, redefining life.
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MEDICINE
RESEARCH
Taking yesterday and reimagining it for today.
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TOOLING
ENERGY
Understanding and enhancing the world through additive.
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RESEARCH
AUTOMOTIVE
Power the people with the power of additive.
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PIONEERING TECHNOLOGY
INVESTOR RELATIONS
As the inventor of selective laser melting and pioneer of metal additive manufacturing, we are the leading provider of industrial metal 3D printing machines.
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MANUFACTURE TOMORROW
GO ADDITIVE
We believe that innovative technology starts with exceptional people. Because of this, we are always looking to enrich our company with passionate, dynamic, and highly skilled people who share our values and vision.
OPEN POSITIONS
We empower our customers, our teams and our industry with leading technology and the most advanced materials. We give our teams the necessary tools to create cutting edge technology,
we give our clients the cutting edge technology to create their dreams,
and we give our industry the dreams to shape the future.
SLM Solutions Group AG: Ihr Partner im 3D Druck
SLMDiscover the limitless potential of our selective laser melting technology.
SCROLL DOWN
Our goal is to change the future of manufacturing forever.
MEET THE MAKERS
OUR MACHINES
From fast prototyping to mass production, we have you covered.
DISCOVER OUR MACHINES
MATTER THAT MATTERS
OUR MATERIALS
We only work with the most advanced materials, ensuring the highest quality and productivity.
BROWSE OUR MATERIALS
WE’VE GOT YOUR BACK
OUR SERVICES
Our experts are always on hand to help you create without limits.
CONNECT WITH OUR EXPERTS
“With the NXG XII 600 supply chains and inventory models will change forever. It is here, it is working. It’s not a twinkle in one of our engineer’s eyes. It is ready to order.“
Sam O'Leary, CEO
ENERGY
SPACE
Discover how we can help you drive the future.
CLICK HERE
AUTOMOTIVE
MEDICINE
3, 2, 1 lift-off. Let us help you explore new worlds.
CLICK HERE
SPACE
TOOLING
Revolutionizing health, redefining life.
CLICK HERE
MEDICINE
RESEARCH
Taking yesterday and reimagining it for today.
CLICK HERE
TOOLING
ENERGY
Understanding and enhancing the world through additive.
CLICK HERE
RESEARCH
AUTOMOTIVE
Power the people with the power of additive.
CLICK HERE
PIONEERING TECHNOLOGY
INVESTOR RELATIONS
As the inventor of selective laser melting and pioneer of metal additive manufacturing, we are the leading provider of industrial metal 3D printing machines.
LEARN MORE
MANUFACTURE TOMORROW
GO ADDITIVE
We believe that innovative technology starts with exceptional people. Because of this, we are always looking to enrich our company with passionate, dynamic, and highly skilled people who share our values and vision.
OPEN POSITIONS
We empower our customers, our teams and our industry with leading technology and the most advanced materials. We give our teams the necessary tools to create cutting edge technology,
we give our clients the cutting edge technology to create their dreams,
and we give our industry the dreams to shape the future.
SLM 280 HL 3D Printer Used equipment
- Description
- Detailed information
- About this seller
This SLM 280 HL 3D printing machine was produced in 2016. The laser melting machine of the SLM 280 HL series is a versatile base machine for additive manufacturing. In principle, the machine can process almost all types of low-melting metal.
Manufacturer: SLM
Model: 280 hl
Year: 2016
Technical information
- Laser and optical bench
- Process chamber
- Recoater System and Main Tank
- Layer Control System (LCS)
- Process Gas Filtration
- Platform Mechanism
- Electronic/Electrical System
- Machine Control Computer and Software (MCS)
- Air Cleaning System
This description can be translated automatically.
Please contact us for more information. The information in this announcement is for guidance only. Exapro recommends that you check with the seller before buying a machine.
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| Operating hours | |
| Switching hours | |
| Status | good condition |
| CE marked | --------- |
| Status |
| Client type | Dealer |
| Active since | 2019 |
| Offers online | 466 |
| Last activity | November 2, 2022 |
Description
This SLM 280 HL 3D printing machine was produced in 2016.
The laser melting machine of the SLM 280 HL series is a versatile base machine for additive manufacturing. In principle, the machine can process almost all types of low-melting metal.
Manufacturer: SLM
Model: 280 hl
Year: 2016
Technical Information
- Laser and Optical Bench
- Process Chamber
- Recoater System and Main Tank
- Layer Control System (LCS)
- Process Gas Filtration
- Platform Mechanism
- Electronic/Electrical System
- Control Computer and Software Machine Maintenance (MCS)
- Air Cleaning System
This description can be translated automatically. Please contact us for more information. The information in this announcement is for guidance only. Exapro recommends that you check with the seller before buying a machine.
Detailed information
| ------------------- | |
| Operating hours | |
| Switching hours | |
| Status | good condition |
| CE marked | --------- |
| Status |
About This Seller
| Customer Type | Dealer |
| Active since | 2019 |
| Offers online | 466 |
| Last activity | November 2, 2022 |
SLM printing: metal 3d printing technology
Selective Laser Melting (SLM) is the premier metal 3D printing technology that has revolutionized metal additive manufacturing, but how does it work and which 3D printers do it best?
Most metal 3D printers use selective laser melting technology, which uses a laser to melt powdered metal.
In fact, this method accounts for over 80% of the metal 3D printer market, with dozens of manufacturers around the world offering machines in a variety of sizes and specifications.
The dominance of SLM technology may not be obvious at first glance, as there are different terminologies in the industry for the same technology. In addition to SLM, there is direct metal laser sintering (DMLS), direct metal laser melting (DMLM), metal laser fusion (LMF), laser cusing, powder bed laser fusion (LPBF) and others. Such a variety of terms raises the question: What is the difference between them?
You may be surprised to know that there is no difference.
Contents
- What is SLM?
- How does the LPBF system work?
- LPBF versus traditional production
- LPBF versus traditional production
- WHO USES LPBF TODAY?
- Aerospace: Landing Gear
- Automotive: Tools
- Medical: Titanium Implants
- Energy: Steam Distribution Unit
- GET METAL PARTS: CONTRACT MANUFACTURERS
- Best 3D printer with laser powder spraying
- FARSOON FS273M
- MPRINT+ for one click
- ORACT METAL XM200G
- 3D Systems DMP FLEX 100
- TRUMPF TRUPRINT 1000234 9009?
To get a final idea of this technology, we turned to one of the inventors of the process, Wilhelm Meiners.
Just over 20 years ago, Meiners and his colleagues Kurt Wissenbach and Andres Gasser developed and patented this technology while working at the Fraunhofer Institute in Germany.
A laser that selectively melts powdered metal inside a GE Additive laser 3D printer (Source: GE Additive)According to Meiners, the technology's official name is powder bed laser melting, or LPBF.
"The different names for the LPBF process are historical," he says. “In the early years, every equipment supplier created their own name for the same process and has kept it until today.” All of these other terms are just brand names for a standardized technology called powder bed laser fusion.
Indeed, the German 3D printer manufacturer EOS coined the term "direct metal laser sintering" and still uses it today. This is a bit of a misnomer as the metal powder melts rather than sinters, but this may have been overlooked in translation. SLM, the more popular term, is actually a brand name owned by printer manufacturer SLM Solutions.
Concept Laser, on the other hand, called their process Laser Cusing, but after GE Additive acquired it in 2016, they changed the name to Direct Metal Laser Melting (DMLM). Printer maker Trumpf prefers to use the term "laser metal melting" while 3D Systems prefers "metal direct printing." Although we have used the most popular term, selective laser melting, in the title of this article, for the rest we will use the official name used by Meiners and the ASTM standardization organization: Powder Bed Laser Fusion (LPBF).
Despite the confusing terminology, LPBF is one of the most interesting 3D printing technologies today. It is used in various industries for rapid prototyping, special high performance parts and mass production using a wide range of metals. Let's see!
How does the LPBF system work?
Close-up of a laser melting titanium powder in a Renishaw 3D printer (Source Renishaw)LPBF 3D printers use powerful lasers to selectively melt metal powder.
The melted parts are fused together layer by layer on a molecular basis until a homogeneous model is obtained. Printer operators may use "clean" metallic materials, although alloys are also regularly used. There are dozens of metals available for the LPBF process, but some of the more common materials include:
- Aluminum
- cobalt chrome
- Copper
- Nickel (Inconel)
- Stainless and tool steel
- Titanium
- Precious metals
In theory, LPBF—like the related and similarly functioning selective laser sintering (SLS) for plastics—is an unsupported AM technology. The packed powder on the printed bed provides support for the model during the printing process.
However, high thermal gradients between the molten part and the surrounding powder can create stresses that cause warping and deformation.
Therefore, supporting structures are often required to remove heat from critical areas and securely fix the part on the printing plate. A general rule of thumb is that overhangs or hollow structures inclined at an angle between 0 and 45 degrees should be supported. LPBF 3D printer contains metal raw material powder. The printer feeds the powder into a chamber where a paddle (like a glass cleaner) or roller applies it in a thin layer to the substrate or plate.
A powerful laser then fuses the 2D piece of the part by selectively melting the powder material. The building plate is then lowered to the height of one small layer and the coater applies another layer of fresh powder to the surface. The printer repeats these steps until a finished part is obtained.
Some printers are equipped with bi-directional coaters that can feed powder to the bed in both directions, speeding up the coating process by up to 40%. Another way LPBF printer manufacturers make printing faster is by using more powerful or multiple lasers.
Small compact LPBF printer can have one 30 watt laser. As machines get bigger, they may start using more powerful lasers or multiple lasers in the same array. For example, the AddUp FormUp 350 has four 500-watt lasers, while the SLM Solutions NXG XII 600 has 12 lasers, each 1000 watts.
Diagram showing the LPBF process (Source: EOS)Increasing the power or number of lasers means the printer can melt metal powder more efficiently. This directly translates into faster assembly rates and throughput, and usually a higher price. For example, SLM Solutions claims that the NXG XII 600 printer can deliver up to 20 times faster assembly speeds than single laser systems, up to 1,000 cm3/hr.
Depending on your needs, when choosing an LPBF 3D printer, you will pay attention to the laser power level, laser beam diameter, scanning speed, possible layer thickness (from 20 to 120 microns), scanning strategy, part cooling strategy and other characteristics. that distinguish different brands and different models within brands.
The LPBF printing process takes place in a controlled atmosphere inside the machine, which means that an inert gas (nitrogen or argon) fills the build chamber.
Once the part is built, it can be removed from the machine after cooling. Large parts may take many hours to cool before they can be handled. The metal powder that did not fuse is then collected and reused for further LPBF projects. The printed parts are initially attached to an assembly plate, from which they are usually separated by cutting or machining, or wire erosion.
If the part needed supports, they must also be removed. Since LPBF printers do not use separate backing materials, this can be a complex and lengthy process.
The surface of the finished part is rough and, depending on your requirements, post-treatment may be required to obtain a smooth and shiny result. It is also relatively common to require additional machining of parts to achieve tighter tolerances and finish thin features, surfaces and holes.
LPBF Versus Conventional Manufacturing
Image Selective Laser Melting: LPBF Versus Conventional ManufacturingLPBF, like any manufacturing technology, has its strengths and weaknesses. The pros and cons of producing a model with LPBF include:
Large selection of metals available
Possibility to realize complex shapes or internal structures, possibly without supports
Reduced overall production time due to no need for tooling
Parts consolidation that allows operators to create previously multi-component parts in a single print
Waste reduction through additive manufacturing and powder recovery
Ability to reduce inventory through rapid production on demand
Potential for mass production of custom parts
No low entry plates. All LPBF 3D printers cost tens of thousands of dollars.
The cost per part can be much higher compared to traditional production methods
Parts require post-processing such as powder removal, support removal and surface grinding
Size is currently limited to one meter
Lasers require a lot of energy
3D -metal printing at DMG Mori (Source: DMG Mori)LPBF compared to traditional production
One of the most common questions when it comes to metal 3D printing is how strong and durable the 3D printed parts are using LPBF is comparable to traditional metal production methods.
Nick Estoc, product manager for French metal 3D printer manufacturer AddUp, explained that LPBF can produce parts with similar mechanical properties to traditional manufacturing. However, he adds, there are some caveats.
“Traditional manufacturing is subtractive and starts from a base material with known mechanical properties through very controlled and mature processes. In any additive manufacturing process, including LPBF, the material is created at the same time as the part. The process is fundamentally different and therefore not equivalent,” says Estock.
Donald Godfrey, global director of aviation and defense business development at SLM Solutions, agrees. He also explains that the SLM process creates parts with a smaller microstructure than cast metal components. This gives them higher tensile properties, but cast parts are currently still stronger.
Powder removal machines like this one from Solukon automate the process of removing powder from a finished part (Source: Solukon)“Typically, LPBF technology is used to replace cast components.
In unique cases, printed components can replace stampings,” he adds. When we asked Meiners if the prints produced by the LPBF process are equivalent to traditional manufacturing processes, he replied that it depends on the situation.
“The properties of LPBF parts can match or even exceed those of traditional parts, but this depends on several conditions such as the material of the metal (steel, aluminium, titanium, etc.), the processing process (heat treatment, hot isostatic pressing, etc.) .d.), the traditional manufacturing process you are comparing to (casting, forging, etc.), and the specific properties of the part (static load strength, high cycle fatigue, creep, etc.).”
Ultimately, there is no general answer, Meiners says. “In many cases, LPBF parts acquire the same properties, but not as a general standard.”
Let's take a look at some real examples of 3D printed LPBF parts in action.
WHO USES LPBF TODAY?
Powder Coated Laser Fusion Ideal for Dental Applications (Source: SLM)LPBF is now used in virtually all conventional metal fabrication industries, including aerospace, automotive, medical, energy and manufacturing.
What all these industries have in common is the need to produce metal parts more efficiently and with better quality, faster and at lower cost. While LPBF is also widely used to produce spare and replacement parts faster and cheaper, the technology is showing itself in the production of complex shapes and innovative product design improvements that are not possible with other metal fabrication methods. With LPBF it is possible to 3D print multi-component parts on a single part, products can have internal lattice structures to reduce weight, as well as complex internal channels that could not be machined.
Metal 3D printing, in general, also eliminates the need to maintain constant inventory and ship parts over long distances, and is more environmentally friendly as it uses and wastes less raw materials.
Let's look at some specific, real world applications of LPBF in action.
Aerospace: Landing gear
3D printed private jet nose gear part (Source: SLM Solutions)Safran Landing Systems and SLM Solutions have collaborated to improve the previously stamped private jet nose gear.
At 455 x 295 x 805 mm, the chassis piece is the world's first LPBF printed part of this size, according to SLM Solutions. Since the part is part of a system that transfers the load from the wheel to the aircraft structure, it was made of titanium. The choice of material gives the part strong mechanical properties and at the same time resistance to corrosion without coating.
It was printed using an SLM 800 quad laser machine. Not only is the printed LPBF part 15% lighter than a traditional forged part, the technology has also reduced lead times.
“Additive manufacturing saves time in the qualification and certification phases by providing parts for testing quickly. We were able to produce the main fitting in a few days versus several months for stamping,” says Gerhard Bjerleitgeb, EVIP Global Services and Solutions at SLM Solutions.
Automotive: Tools
In many cases LPBF can replace traditional production methods, but they can also work together.
Traditional production methods are no longer used to create tool segments for hot stamping car parts, so Audi has completely replaced them with 3D printed alternatives. “Whenever traditional manufacturing methods reach their limit, we use additive manufacturing to help us meet quality standards and meet production deadlines,” says Matthias Herker, Project Manager at the Audi Metal 3D Printing Center.
Audi 3D prints automotive parts with EOS laser powder fusing (Source: EOS)Audi uses the EOS M 400 printer to produce hot stamping segments and high pressure injection molding tool inserts. Individual segments can be up to 400 mm long and weigh up to 120 kg.
LPBF 3D printing allows Audi to create topologically optimized, highly complex cooling ducts, precisely tailored to the needs of specific components. As a result, the premium car manufacturer has been able to reduce cycle times and achieve more even cooling, resulting in improved parts quality.
Medical: Titanium Implants
GE Additive LPBF Titanium Lumbar Implants (source GE Additive)Lumbar interbody fusion devices - or spinal cages - are widely used to treat patients suffering from back problems such as degenerative disc disease.
GE Additive manufactures additively manufactured titanium powder variant using LPBF printing. These new spinal cages have a number of advantages over machined options, the company says.
With greater design freedom in additive manufacturing, spinal frames can be made lighter, with larger windows and lattice structures. This not only reduces manufacturing costs, but also makes cages more efficient, as clinicians can implant additional bone graft into the cage. It is also possible to create custom porous structures that mimic human bone, which can further promote bone formation.
New cells do not require any coating, which completely eliminates the risk of delamination. They are also made of titanium, which is biocompatible and reduces separator migration and bone degradation.
Energy: Steam Distribution Unit
3D Printed Steam Distribution Unit (Source: AddUp)Orano, a French multinational nuclear fuel cycle company, has struggled with long lead times and the high cost of obsolete spare parts.
In early 2021, the company entered into a partnership with AddUp to evaluate the technical and economic feasibility of using LPBF in its work. Using the FormUp 350 printer, Orano and AddUp have created multiple replicas of a 3D printed material transfer bridge and steam distribution unit that have particularly long production times when manufactured using traditional methods. The design and mechanical characteristics of the parts were identical to the original ones.
Through the use of fine stainless steel powder, the 3D printed parts had high geometric accuracy and surface finish, especially in their internal channels. In addition, at the cost of three machined parts, Orano was able to print 16 additively manufactured components.
“The result is unexpected: the same design with complex geometries, the same mechanical characteristics and, above all, a 50% reduction in production costs compared to machining.” With metal additive manufacturing, Orano now has an additional, agile, reliable and cost-effective spare parts supply chain,” says Ana-Paula Serond, Innovation Manager at Orano.
GET METAL PARTS: CONTRACT MANUFACTURERS
If you are not ready to purchase your own LPBF machine, there are parts services for you. Generally, they come in two different flavors: on-demand 3D printing manufacturers and printer manufacturers.
Metal 3D printing at Sandvik (Source: Sandvik)BEST LASER POWDER 3D PRINTERS
Laser powder 3D printers come in a variety of sizes and capacities. Starter solutions from leading manufacturers are featured here, but many companies also offer larger, more versatile machines designed to meet specific production needs and industry segments.
When choosing an LPBF 3D printer, consider the following:
- Scalable. If you outgrow the entry-level machine, is there an option to upgrade to the next level?
- Assembly speed: how many cubic centimeters per hour can the machine produce?
- Laser scanning speed: This is not the only indicator of assembly speed, but it contributes.
- Layer height and resolution: How detailed can the final details be?
- Gas and electricity consumption: Some machines consume more than others. How does this affect the final cost?
- Material Consumption: Machines with good powder feeding and screening technology can consume less powder.
- Open or Proprietary Materials: If you are forced to use the printer manufacturer's materials, this can affect manufacturing flexibility and costs.
Farsoon FS273M
Headquartered in Changsha, Hunan, China, Farsoon Technologies has introduced the FS273M additive manufacturing machine, the next generation of the FS271M, to the global market for commercial orders.
FS273M Laser Beam Powder Coated AM Machine (PBF-LB) is designed to solve the productivity, cost efficiency and industrial workflow challenges of metal AM and measures 275 x 275 x 355 mm. The machine has many upgrades that are hoped to optimize the metal fabrication workflow with a wide range of industrial metal materials.
Advanced dual laser scanning strategy and calibration algorithm provide up to two times faster volume creation than a single laser configuration. Improved communication signal management and a new design of the recoater ensure high speed and stable powder supply throughout the production process.
In addition, the FS273M is equipped with a built-in long life filtration system that allows you to increase the run time for longer production times and reduce the cost of filter replacements. Features such as a pre-heated base plate, reliable recoating operations, removable overflow containers, and enough powder for complete assembly ensure ease of operation and good maintainability.
MPrint+ for metal in one click
Printer: One Click Metal MPrint+
Assembly volume: 150 x 150 x 150 mm
Laser type: 200 W fiber laser
Materials: Tool steel, stainless steel
Estimated Price: $55,000 - $60,000
One Click Metal is an offshoot of the well-known printer manufacturer Trumpf.
The company claims it produces an affordable, easy-to-use metal 3D printing system ideal for companies just getting started with LPBF. One Click Metal MPrint+ works with cartridges to eliminate metal powder clutter and is designed to be deployed with less accessory and space requirements. It has a build volume of 150 x 150 x 150 and comes with MPrep software.
MPrint+ is designed to be paired with MPure, which is the company's 3-in-1 unpacking station that degreases parts, screens out powder, and dispenses recycled powder for reuse. The cartridge system of both the printer and the depowder station ensures easy and safe handling of the powder so that contact with it is limited. With the side connection for a vacuum cleaner, you can effectively remove excess powder from the unpacking chamber.
Xact Metal XM200G
Printer: Xact Metal XM200G
Workpiece volume: 150 x 150 x 150 mm
Laser type: Single or dual 100W, 200W or 400W Yb fiber laser
Materials: Aluminium, stainless steel, cobalt-chromium, nickel, hastelloy, copper, bronze, titanium,
Estimated Price: $90,000 - $100,000
Xact Metal wants to bring 3D printing to a wider audience with its flexible XM200G series, available with one or two fiber laser powers.
XM200G is based on the Xact Metal XM200C 3D printer. It integrates a high performance galvanometric system to move the laser beam over the powder layer. According to the company, this architecture allows faster print times and supports multiple lasers.
XM200G is designed for customers who are starting their metal 3D printing journey in various fields including product development, tooling manufacturing, metal powder bed research and workforce development. It offers the possibility of using two lasers simultaneously with either 100% coverage at 100 µm spot size or 66% coverage at 50 µm spot size. This multi-laser system further increases print speed.
The XM300C offers a larger workpiece volume (254 x 330 x 330 mm) and a choice of two or four independent multilasers. It features two feed chambers, reducing assembly time and increasing productivity, the company says.
3D Systems DMP Flex 100
Printer: 3D Systems DMP Flex 100
Workpiece volume: 100 x 100 x 90 mm
Laser type: 100 W laser
Materials: 316L and 17-4PH stainless steels, cobalt chrome
Estimated price: $250,000
3D System's DMP Flex 100 entry-level metal 3D printer has a build volume of 100 x 100 x 90mm and can print parts up to 20 degrees tilted without legs.
Surface fineness down to 5 microns means minimal post-processing required. 3D Systems calls its technology direct metal printing, where each layer is fused onto the previous one, creating a strong and dense part (up to 99.9%). The system's 100-watt fiber laser, although less powerful than the larger metal 3D printing solutions in the 3D System line, is powerful enough to handle the company's wide selection of metal powder library, including various grades of titanium.
Designed for niche applications that require fine detail, the DMP Flex 100 uses dedicated gas lines to achieve the vacuum needed to print 3D System powders optimized for additive manufacturing. This requires the necessary building infrastructure.
If you're ready to move from entry-level machines, 3D Systems offers five other, larger production units, as well as a networked factory solution.
Trumpf TruPrint 1000
TruPrint 1000 LMF. Source: trumpf.comPrinter: Trumpf TruPrint 1000
Workpiece volume: 100 × 100 × 100 mm
Laser type: 200W fiber laser
Materials: Stainless steels, tool steels, aluminium, nickel alloys, cobalt-chromium, copper, titanium, precious metals
Estimated price: $180,000
Based in Ditzingen, Germany, Trumpf offers the TruPrint 1000 metal 3D printer for the production of small industrial parts.
The compact machine with quick set-up ensures high productivity and excellent detail, with a minimum layer thickness of 10 microns. Trumpf calls its version of SLM laser metal processing. The printer's two 200-watt fiber lasers simultaneously scan the build area, which the company claims increases productivity by up to 80% over similar machines. The powder bed control system analyzes each layer to ensure the best part quality. Oblique recoating makes the powder application process faster, which further increases production speed and reduces the cost of parts.
A unique feature is that the TruPrint 1000 can process amorphous metals. These materials allow the production of parts with high elasticity and corrosion resistance while reducing wall thickness. This reduces production time and the weight of the final part.
In March 2021, Trumpf introduced the new TruPrint 3000 3D printing system, which uses powder bed laser melting to produce metal parts up to 300 millimeters in diameter and up to 400 millimeters in height.
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