Metal printing compared for you
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2 common technologies for metal printing are compared for you by Sirris: Electron Beam Melting (EBM) en Laser Beam Melting (LBM)
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Yves Hagedorn - Fraunhofer Institute for Laser Technology
This document summarizes research on selective laser melting (SLM) of net-shaped oxide ceramics. Key findings include:
1) SLM can be used to manufacture ceramic dental restorations from alumina-zirconia composites with sufficient strength and microstructure similar to sintered materials.
2) High temperature pre-heating is needed to reduce cracks caused by thermal gradients in SLM. Experimental setups using CO2 pre-heating lasers achieved densities over 99%.
3) Mechanical strength of over 500 MPa was achieved, meeting dental restoration standards. Surface quality was improved to under 100 microns roughness through contour scanning strategies.
4) Preliminary economic analysis
2011 11-15 themadag am voor metaal en keramiek - ebm and ceramic am - carsten...
The document discusses additive manufacturing technologies for direct and indirect manufacturing. For direct manufacturing, it describes electron beam melting, which uses a high-energy electron beam to melt and fuse powdered materials layer by layer. For indirect manufacturing, it describes the Optoform process, which uses an ultraviolet laser to selectively cure liquid photopolymer resins containing fillers layer by layer, and requires post-processing steps of debinding and sintering. Example applications discussed include medical implants, aerospace, automotive, and other industries.
Sirris_am in aviation and aerospace_state of the art
Metal additive manufacturing (AM) uses a layer-by-layer process to produce metal parts without tools. It offers nearly unlimited freedom of design and the ability to produce complex geometries. While initially used for prototyping, AM is gaining acceptance for low-volume production in industries like aerospace and aviation due to its design optimization capabilities. For AM to see widespread adoption, challenges like reproducibility, costs, and standardization must still be addressed.
Metal Directed Energy Deposition AM Technolgies
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Simulation can help in both design and process optimization for additive manufacturing industry by getting the product right the first time. Cost saving by reducing print iterations can be tremendous. The presentation covers some overview of the AM industry and specifically discusses both metal and polymer AM simulation solutions.
2015 11-26 - sls, ebm, lens
University Course "Micro and nano systems" for Master Degree in Biomedical Engineering at University of Pisa. Topic: Selective laser sintering, electron beam melting, laser engineering net shaping
Ntnu silicon for the chemical and photovoltaic industry norway 2018
This document discusses Søderberg electrode technology and its potential for producing higher quality metallurgical silicon for the solar and chemical industries. It summarizes that Søderberg electrodes have lower operational costs than other electrode types and allow for improved process control and product quality. The technology also enables the addition of catalysts directly into the electrodes, which could benefit downstream polysilicon and silicone production by reducing costs. The document then outlines some of the engineering considerations for doping Søderberg electrodes with catalyst materials like copper.
IBC brochure 2015
IBC Coatings Technologies, Inc. provides advanced surface treatments for components requiring wear and corrosion resistance using innovative low-pressure plasma and thermo-chemical reaction processes. Since being founded in 1996, IBC has grown to over 70 employees and 80,000 square feet of operating space in Lebanon, IN and a joint venture in Ontario, Canada. IBC serves customers across multiple industries, customizing surface treatments for each component's specific needs.
Recommended
Yves Hagedorn - Fraunhofer Institute for Laser Technology
This document summarizes research on selective laser melting (SLM) of net-shaped oxide ceramics. Key findings include:
1) SLM can be used to manufacture ceramic dental restorations from alumina-zirconia composites with sufficient strength and microstructure similar to sintered materials.
2) High temperature pre-heating is needed to reduce cracks caused by thermal gradients in SLM. Experimental setups using CO2 pre-heating lasers achieved densities over 99%.
3) Mechanical strength of over 500 MPa was achieved, meeting dental restoration standards. Surface quality was improved to under 100 microns roughness through contour scanning strategies.
4) Preliminary economic analysis
2011 11-15 themadag am voor metaal en keramiek - ebm and ceramic am - carsten...
The document discusses additive manufacturing technologies for direct and indirect manufacturing. For direct manufacturing, it describes electron beam melting, which uses a high-energy electron beam to melt and fuse powdered materials layer by layer. For indirect manufacturing, it describes the Optoform process, which uses an ultraviolet laser to selectively cure liquid photopolymer resins containing fillers layer by layer, and requires post-processing steps of debinding and sintering. Example applications discussed include medical implants, aerospace, automotive, and other industries.
Sirris_am in aviation and aerospace_state of the art
Metal additive manufacturing (AM) uses a layer-by-layer process to produce metal parts without tools. It offers nearly unlimited freedom of design and the ability to produce complex geometries. While initially used for prototyping, AM is gaining acceptance for low-volume production in industries like aerospace and aviation due to its design optimization capabilities. For AM to see widespread adoption, challenges like reproducibility, costs, and standardization must still be addressed.
Metal Directed Energy Deposition AM Technolgies
Metal Directed Energy Deposition AM Technolgies
Presentation on DED for Metals including WAAM, EBAM and Laser Beam Deposition.
Additive Manufacturing Simulation - Design and Process
Simulation can help in both design and process optimization for additive manufacturing industry by getting the product right the first time. Cost saving by reducing print iterations can be tremendous. The presentation covers some overview of the AM industry and specifically discusses both metal and polymer AM simulation solutions.
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University Course "Micro and nano systems" for Master Degree in Biomedical Engineering at University of Pisa. Topic: Selective laser sintering, electron beam melting, laser engineering net shaping
Ntnu silicon for the chemical and photovoltaic industry norway 2018
This document discusses Søderberg electrode technology and its potential for producing higher quality metallurgical silicon for the solar and chemical industries. It summarizes that Søderberg electrodes have lower operational costs than other electrode types and allow for improved process control and product quality. The technology also enables the addition of catalysts directly into the electrodes, which could benefit downstream polysilicon and silicone production by reducing costs. The document then outlines some of the engineering considerations for doping Søderberg electrodes with catalyst materials like copper.
IBC brochure 2015
IBC Coatings Technologies, Inc. provides advanced surface treatments for components requiring wear and corrosion resistance using innovative low-pressure plasma and thermo-chemical reaction processes. Since being founded in 1996, IBC has grown to over 70 employees and 80,000 square feet of operating space in Lebanon, IN and a joint venture in Ontario, Canada. IBC serves customers across multiple industries, customizing surface treatments for each component's specific needs.
PEO Applications
IBC Materials provides plasma electrolytic technologies for oxidation, depainting, and polishing of metal surfaces. Plasma electrolytic oxidation can create ceramic coatings on aluminum, titanium, and magnesium alloys for corrosion and wear resistance. Plasma electrolytic depainting removes paint and powder coatings from metals in a non-hazardous process. Plasma electrolytic polishing finishes and smoothens metal surfaces. These plasma electrolytic technologies provide green and environmentally friendly alternatives to conventional surface treatment methods.
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Lom
This document discusses Javelin, a division of Lone Peak Engineering, and their development of rapid prototyping technologies for ceramics under NASA contracts. It describes Javelin's SteamRoller System which uses ceramic laminated object manufacturing (CerLAM) to build ceramic prototypes layer-by-layer directly from computer models without tooling. The CerLAM process gives engineers a rapid and cost-effective option for ceramic prototyping. Javelin has used CerLAM to produce a variety of ceramic and metal components.
Electron beam freeform fabrication process
The document summarizes electron beam freeform fabrication (EBF3), a rapid metal deposition process. EBF3 builds complex metal parts directly from CAD files in a layer-additive fashion using a high-power electron beam in a vacuum. It employs welding wire as a feedstock and can deposit materials like aluminum and titanium alloys at rates from 330-2500 cm3/hr. EBF3 offers advantages over conventional manufacturing like reduced costs, lead times, and ability to fabricate custom parts on demand.
Presentation Diamond at Work
The document discusses various fabrication technologies for diamond beads used in cutting tools, including traditional methods like electroplating, hot pressing, and pressureless sintering. It then introduces a new technology called Diamond Injection Moulding that allows intricate bead geometries and has advantages over traditional methods like lower costs and higher performance. Testing of a bead with a new double bulge geometry in a full-scale plant found it could cut wires at a higher speed, resulting in over a 15% cost savings despite slightly reduced lifetime.
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Ace Aerospace insert (rev 1 revised october 2013)
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2) Laser drilling of vias down to 75 microns and sequential multilayer boards with up to 3 build-up levels.
3) Reliability testing of boards with up to 12 layers and 8000 interconnected holes.
4) Examples of high density interconnect boards with BGA pitches as small as 0.3mm and microvia and blind via technology.
Презентация компании «ThermaSteel»
Презентация производственной компании «ThermaSteel». Профиль компании - производство кровельных и фасадных материалов. Задача проекта - стилизация и облегчение существующего визуального портфолио компании. Предназначение презентации - выход компании на новые рынки, в том числе в страны Ближнего Востока.
Walter kuhn maxon ceramics
The document discusses ceramic and metal injection molding technologies used by maxon motor GmbH to produce small, complex parts with high precision. Key points:
- maxon uses ceramic injection molding (CIM) to produce ceramic parts that are extremely hard, wear resistant, and can work in harsh conditions. Metal injection molding (MIM) is used to produce steel parts in high volumes.
- CIM allows for complex, tiny ceramic parts that can have lifetimes up to 100 times longer than metal. MIM is used to replace multi-part assemblies with single parts.
- The document provides examples of applications like watch parts, nozzles, and sensors that benefit from the precision and properties of CIM and
Laminated object manufacturing
Laminated Object Manufacturing (LOM) is a solid-based rapid prototyping process that uses adhesive-coated sheets of material like paper or plastic. The LOM process involves using a laser to cut the sheet material into layers according to a 3D model, stacking the layers and adhering them together using heat and pressure to build a prototype. Some key advantages of LOM include its ability to produce large prototypes, low material costs, and wide variety of usable materials. However, LOM also has limitations like requiring decubing of parts and not being suitable for complex geometries.
LV Tech 3D Printing 2013-08-20
3D printing, also known as additive manufacturing, is a process for making three-dimensional solid objects from digital files. It creates objects by laying down successive layers of material, with different 3D printing techniques using materials like thermoplastics, metals, and even edible materials. 3D printing allows for the creation of complex geometries that would be difficult or impossible to manufacture with traditional techniques. It is gaining popularity in fields like engineering, industrial design, medicine, and more.
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The document discusses a feasibility study conducted by EADS Innovation Works and Astrium, in partnership with ONERA, for a future high-speed transport system called ZEHST. ZEHST aims to fly long-haul routes like Tokyo to Los Angeles in under 2.5 hours while having minimal environmental impact. The concept uses technologies from Astrium's spaceplane and studies how to meet performance and environmental requirements for high-speed commercial transport. Initial concepts propose using liquid hydrogen fuel and rocket engines to accelerate the aircraft to high speeds before switching to ramjet propulsion for cruise. Research topics include evaluating hydrogen fuel and reducing emissions and sonic booms.
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The document discusses additive manufacturing using electron beam melting (EBM) technology. It describes how EBM is used to produce metal orthopedic implants and aerospace components. Key advantages of EBM include the ability to design complex cellular structures, high production rates, and excellent material properties without requiring post-processing. New EBM systems like the Arcam Q10 and Q20 are designed for high volume production and include features like improved resolution, quality verification cameras, automated powder handling, and process monitoring software.
The Cost of Manufacturing With vs. Without Lasers
The aerospace and automotive industries have been using 3D printing technology for years to create custom parts quickly, efficiently and at a lower cost.
This SlideShare will teach you about additive manufacturing, and how this growing field can help enhance your production processes and complement traditional manufacturing practices.
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PEO Applications
IBC Materials provides plasma electrolytic technologies for oxidation, depainting, and polishing of metal surfaces. Plasma electrolytic oxidation can create ceramic coatings on aluminum, titanium, and magnesium alloys for corrosion and wear resistance. Plasma electrolytic depainting removes paint and powder coatings from metals in a non-hazardous process. Plasma electrolytic polishing finishes and smoothens metal surfaces. These plasma electrolytic technologies provide green and environmentally friendly alternatives to conventional surface treatment methods.
MEMS capability @ CSEM
CSEM is a MEMS technology development powerhouse that combines rigorous industrial processes with innovative spirit. It has a long track record of MEMS projects across multiple industries. CSEM has a newly built clean room and dedicated staff to support MEMS technology development from concept to small series production. It offers a wide range of MEMS processes and materials characterization from photolithography to thin film deposition.
Plastic manufacturer FWB achieves major savings in production time and cost u...
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IRJET- Analytical Validation of Improvised Designs of a Busbar for Optimi...
This document describes an analytical validation of two improved busbar designs aimed at reducing mass and maximum operating temperature. CAD models were created and analyzed using FEA software. The first design splits the busbar width in half to increase surface area for heat dissipation. The second adds holes to reduce mass while also increasing heat transfer. Both designs were found to decrease maximum temperature compared to the basic design, with the holed design maintaining the same mass. However, the split design increased electric flux and heat generation. The research validates improved busbar designs for optimization of parameters like temperature and mass.
Lom
This document discusses Javelin, a division of Lone Peak Engineering, and their development of rapid prototyping technologies for ceramics under NASA contracts. It describes Javelin's SteamRoller System which uses ceramic laminated object manufacturing (CerLAM) to build ceramic prototypes layer-by-layer directly from computer models without tooling. The CerLAM process gives engineers a rapid and cost-effective option for ceramic prototyping. Javelin has used CerLAM to produce a variety of ceramic and metal components.
Electron beam freeform fabrication process
The document summarizes electron beam freeform fabrication (EBF3), a rapid metal deposition process. EBF3 builds complex metal parts directly from CAD files in a layer-additive fashion using a high-power electron beam in a vacuum. It employs welding wire as a feedstock and can deposit materials like aluminum and titanium alloys at rates from 330-2500 cm3/hr. EBF3 offers advantages over conventional manufacturing like reduced costs, lead times, and ability to fabricate custom parts on demand.
Presentation Diamond at Work
The document discusses various fabrication technologies for diamond beads used in cutting tools, including traditional methods like electroplating, hot pressing, and pressureless sintering. It then introduces a new technology called Diamond Injection Moulding that allows intricate bead geometries and has advantages over traditional methods like lower costs and higher performance. Testing of a bead with a new double bulge geometry in a full-scale plant found it could cut wires at a higher speed, resulting in over a 15% cost savings despite slightly reduced lifetime.
Semiconductor gas sensor for detecting no and co traces in ambient air of roa...
The present article describes sensor elements that have been made by means of thick-film and thin-film techniques.
Ace Aerospace insert (rev 1 revised october 2013)
ACE is an instrumental partner to the aerospace and defence sector, developing custom components using lean manufacturing principles. It has worked with major industry players on projects involving emerging technologies, miniaturization, alternative materials, and supply chain management. ACE produces safety critical components in aerospace grade materials like titanium and produces a range of components like heat exchanger plates and fuel filters.
IRJET- A Review Paper on Light Weight Autoclave Aerated Concrete Block
This document provides a review of light weight autoclave aerated concrete blocks. It discusses the manufacturing process, which involves mixing raw materials like cement, water, fly ash, lime, and aluminum powder. The mixture is cured in an autoclave under high temperature and pressure to produce lightweight blocks containing 50-60% air. Tests showed the blocks have low water absorption, compressive strength of 3.78 N/mm2, and flexural strength of 0.69 N/mm2. AAC blocks offer benefits like lighter weight, lower costs, better seismic and fire performance than clay bricks. The document concludes AAC is a sustainable and eco-friendly building material.
Efficient Enterprises: Powering American Industry - Industry Examples , Mich...
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Nov 17, 2009: Alliance to Save Energy Congressional briefing, "Heavy Industries: Advancing American Manufacturing," - A discussion by industry experts centering on the current and future prospects for energy efficiency in their four respective industries. All agreed on the great potential for energy efficiency projects but acknowledged the formidable barriers that inhibit investment.Technical Capability
The document discusses the technical capabilities of PCB manufacturing, including:
1) Drilling holes as small as 150 microns with an aspect ratio up to 14:1 and lines/spacing as small as 40/60 microns.
2) Laser drilling of vias down to 75 microns and sequential multilayer boards with up to 3 build-up levels.
3) Reliability testing of boards with up to 12 layers and 8000 interconnected holes.
4) Examples of high density interconnect boards with BGA pitches as small as 0.3mm and microvia and blind via technology.
Презентация компании «ThermaSteel»
Презентация производственной компании «ThermaSteel». Профиль компании - производство кровельных и фасадных материалов. Задача проекта - стилизация и облегчение существующего визуального портфолио компании. Предназначение презентации - выход компании на новые рынки, в том числе в страны Ближнего Востока.
Walter kuhn maxon ceramics
The document discusses ceramic and metal injection molding technologies used by maxon motor GmbH to produce small, complex parts with high precision. Key points:
- maxon uses ceramic injection molding (CIM) to produce ceramic parts that are extremely hard, wear resistant, and can work in harsh conditions. Metal injection molding (MIM) is used to produce steel parts in high volumes.
- CIM allows for complex, tiny ceramic parts that can have lifetimes up to 100 times longer than metal. MIM is used to replace multi-part assemblies with single parts.
- The document provides examples of applications like watch parts, nozzles, and sensors that benefit from the precision and properties of CIM and
Laminated object manufacturing
Laminated Object Manufacturing (LOM) is a solid-based rapid prototyping process that uses adhesive-coated sheets of material like paper or plastic. The LOM process involves using a laser to cut the sheet material into layers according to a 3D model, stacking the layers and adhering them together using heat and pressure to build a prototype. Some key advantages of LOM include its ability to produce large prototypes, low material costs, and wide variety of usable materials. However, LOM also has limitations like requiring decubing of parts and not being suitable for complex geometries.
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IRJET- A Review Paper on Light Weight Autoclave Aerated Concrete Block
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LV Tech 3D Printing 2013-08-20
3D printing, also known as additive manufacturing, is a process for making three-dimensional solid objects from digital files. It creates objects by laying down successive layers of material, with different 3D printing techniques using materials like thermoplastics, metals, and even edible materials. 3D printing allows for the creation of complex geometries that would be difficult or impossible to manufacture with traditional techniques. It is gaining popularity in fields like engineering, industrial design, medicine, and more.
Eads brochure zehst-english
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The document discusses additive manufacturing using electron beam melting (EBM) technology. It describes how EBM is used to produce metal orthopedic implants and aerospace components. Key advantages of EBM include the ability to design complex cellular structures, high production rates, and excellent material properties without requiring post-processing. New EBM systems like the Arcam Q10 and Q20 are designed for high volume production and include features like improved resolution, quality verification cameras, automated powder handling, and process monitoring software.
The Cost of Manufacturing With vs. Without Lasers
The aerospace and automotive industries have been using 3D printing technology for years to create custom parts quickly, efficiently and at a lower cost.
This SlideShare will teach you about additive manufacturing, and how this growing field can help enhance your production processes and complement traditional manufacturing practices.
Biomaterials and 3D Printing
This document discusses metallic biomaterials for 3D printing of orthopedic implants. It begins with an introduction to porous prostheses for bone ingrowth fixation. The state of the art section describes the Arcam EBM 3D printing process and materials like Ti6Al4V and Co-Cr alloys. Mechanical validation tests on solid and porous samples produced by EBM show properties comparable to other fabrication methods. In vitro testing with human osteoblast cells shows good cell adhesion and growth on EBM porous structures. In vivo small animal and sheep studies demonstrate bone ingrowth and osseointegration with EBM printed implants.
Simulations of Thermo-Mechanical Characteristics in Electron Beam Additive Ma...
This document summarizes simulations of the thermo-mechanical characteristics of electron beam additive manufacturing (EBAM). A 3D finite element model was developed to investigate thermal response, residual stress, and deformation. The model considers conical heat flux, Gaussian intensity distribution, and linear heat decay. Temperature, stress, and deformation results are presented from simulations of single-line scans and multi-layer crossed raster patterns. Peak tensile stresses occur at the solidification front, and maximum deformation follows the beam path. Future work will focus on simulating hatch melting patterns.
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This document summarizes research on modeling the thermal effects of the electron beam additive manufacturing process, specifically how powder sintering affects temperature distribution and melt pool geometry. Key findings from simulations include higher temperatures and deeper melt pools with increasing powder porosity. Larger beam sizes produced shallower melt pools. Future work is proposed on modeling overhang structures, thermal effects at solid/powder interfaces, and thermo-mechanical analysis.
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Simulation of Electron Beam Melting With the Lattice Boltzmann Method
This document discusses using the lattice Boltzmann method to simulate electron beam melting in additive manufacturing. It begins with an introduction to electron beam melting and the lattice Boltzmann method. It then derives the lattice Boltzmann method from the Boltzmann equation and discretizes it. The document outlines the algorithm, including the streaming and collision steps. It discusses how the electron beam and liquid-void interface are modeled using this method. Finally, it briefly mentions using high performance computing for electron beam melting simulations.
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This document summarizes research on additive manufacturing technologies for metal applications. It discusses Sirris, an organization that provides technology services to industry, and their expertise in additive manufacturing. Two key additive manufacturing technologies for metals are described - Electron Beam Melting (EBM) and Laser Beam Melting (LBM). EBM uses an electron beam to sinter metal powder in a vacuum environment, while LBM uses a laser beam under argon gas. Their differences in terms of process parameters, material properties, and advantages/disadvantages are summarized. Metallurgical analysis shows EBM produces a uniform fine-grained microstructure while LBM microstructure depends on build orientation. Mechanical properties are also compared between the two technologies.
Additive Manufacturing (3-D printing) , Rapid Prototyping
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This document summarizes a seminar on additive manufacturing technologies. It discusses the history of 3D printing, which was developed in 1984. It then describes several common additive manufacturing techniques like selective laser sintering, fused deposition modeling, and stereolithography. Applications of 3D printing discussed include uses in architecture, automotive, medical, food, and aerospace. The document outlines advantages like reduced costs and complex geometries along with disadvantages like high machine costs and size limitations. It concludes by noting the growing scope of additive manufacturing.CSIRO Additive Manufacturing - Aug 14
Presentation of CSIRO's Metallic Additive manufacturing Capabilities including Arcam Electron Beam Melt and Cold Spray
additive manufacturing
This is a simple presentation with more pictures and required side headings.
It is unlike many other ppts which have much content boring the viewers.
Additive manufacturing ppt
Additive manufacturing, also known as 3D printing, involves building 3D objects layer by layer from digital models. The document discusses the current state and future potential of 7 additive manufacturing processes, including stereolithography, material jetting, binder jetting, material extrusion, powder bed fusion, sheet lamination, and directed energy deposition. It also identifies gaps in technology, materials, design, modeling, and education/training that must be addressed for additive manufacturing to become more widely used for mass production. Recommendations include increased collaboration between universities and industry to advance the technology and reduce costs.
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Simulation of Electron Beam Melting With the Lattice Boltzmann Method
Simulation of Electron Beam Melting With the Lattice Boltzmann Method
Workshop 3: 3D Printing State of the Art: Industrial
Workshop 3: 3D Printing State of the Art: Industrial
Selective Laser Melting versus Electron Beam Melting
Selective Laser Melting versus Electron Beam Melting
Additive Manufacturing (3-D printing) , Rapid Prototyping
Additive Manufacturing (3-D printing) , Rapid Prototyping
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Electron Beam Machining
Electron beam machining (EBM) involves directing a high-velocity beam of electrons in a vacuum chamber to melt or vaporize material from a workpiece. The electron beam is generated in a gun and focused onto a small spot on the workpiece using magnetic coils. This localized heating allows for precise material removal with minimal heat effects. EBM can machine nearly any material and produces close tolerances, but requires expensive equipment and vacuum systems. Common applications include machining wire drawing dies and manufacturing semiconductor and optical components.
Heatsink using additive manufacturing
it is an acadamic project about how to create complex geometry for heatsink. In this project i designed a heatsink by implementing thermal topology optimization technique using altair's hyperworks Optistruct solver and manufactured it using additive manufacturing to obtain complex geometry for convective heat transfer.
State of the Art in Vacuum Arc remelting and Electro Slag Remelting Process -...
This document compares the vacuum arc re-melting (VAR) and electro slag re-melting (ESR) processes. Both processes are used to further refine and improve the homogeneity and cleanliness of engineered steels and alloys. VAR uses an electric arc to melt an electrode under vacuum, while ESR melts an electrode immersed in a protective slag layer heated by an electric current. Both processes improve material properties over conventional casting, but each has unique benefits due to differences in the physical and chemical transformations that occur.
ELECTRON BEAM WELDING (EBW) PPT
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Electron Beam Welding is a fusion welding process in which a beam of high-velocity electrons is applied to the material to be joined. The work-piece melt as the kinetic energy of the electrons is transformed into heat upon impact. The EBW process is well-positioned to provide industries with highest quality welds and machine designs that have proven to be adaptable to specific welding tasks and production environments.Ch 12 unconventional machining
The document discusses electrochemical machining (ECM). ECM is an unconventional machining process where material is removed from a workpiece made of an electrically conductive material via an electrochemical reaction. In ECM, the workpiece acts as an anode in an electrolyte solution, and a tool acts as a cathode. A direct current is passed between them, causing metal ions from the workpiece to dissolve into the electrolyte solution. ECM can machine complex shapes with high accuracy and no tool wear. It has the highest material removal rate of any unconventional machining process but requires expensive equipment and a conductive workpiece material.
Electro Slag Melting Processes and Furnaces
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👉 Check out our full 'Africa Series - Automation Student Developers (EN)' page to register for the full program:
https://bit.ly/Automation_Student_Kickstart
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Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
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Containers & AI - Beauty and the Beast!?!
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Event Link: https://meine.doag.org/events/cloudland/2024/agenda/#agendaId.4211
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Metal printing compared for you
- 2. 2 COMMON TECHNOLOGIES FOR METAL PRINTING EOSArcam COMPARED FOR YOU BY sirris
- 3. Process similaritiesSIMILARITIES BOTH A POWDER BED TECHNOLOGY LAYER BY LAYER, SELECTIVELY MELTED POWDER RESULTS IN, CLOSE TO, 100% DENSE COMPONENTS © llnl.gov
- 4. DIFFERENCES USES AN ELECTRON BEAM WORKS IN BUILDING CHAMBER OF APPROX 700°c REST POWDER IS A PRE-SINTERED CAKE EBM: WORKS IN VACUUM BUILDING ATMOSPHERE FEW SUPPORT STRUCTURES ARE NEEDED © arcam
- 5. DIFFERENCES USES A LASER BEAM WORKS WITH A HEATED PLATFORM UP TO 200°c REST POWDER REMAINS LOOSE POWDER LBM: TYPICALLY ARGON CHARGED BUILDING ATMOSPHERE MORE SUPPORT STRUCTURES ARE NEEDED © siemens
- 6. IN APPLICATION SURFACE QUALITY LBM > EBM DETAILS QUALITY LBM > EBM SPEED OF BUILDING EBM > LBM LOWER t IN LBM MAKES STRESS RELIEF NECESSARY COMPLEX INTERAL CHANNELS LBM > EBM AVAILABLE MATERIALS LBM > EBM © sirris
- 7. The numbersIN NUMBERS LBM EBM Size building chamber (mm) typical 250 x 250 x 350 Ø 210 x 350 up to 500 x 280 x 325 Ø 350 x 380 Layer thickness (µm) 30 to 90 50 to 90 Min wall thickness (mm) 0.2 0.6 Accuracy (mm) +/- 0.1 +/- 0.3 Build rate (cm³/h) 5 - 20 80 Surface roughness (µm) 5 - 15 20 - 30 © fluentu Disclaimer: above values are indicative; for specific cases, contact us to explore the possibilities together
- 8. MACHINE SUPPLIERS EBM: ARCAM – PATENT HOLDER LBM: CONCEPT LASER - DE EOS - DE RENISHAW - UK SLM SOLUTIONS - DE 3D SYSTEMS - US And More… © k-y jelly
- 9. SLM SOLUTIONS 250 ARCAM A² BOTH TECHNOLOGIES AVAILABLE AT SIRRIS
- 10. NEED HELP? GET IN TOUCH! STIJN LAMBRECHTS stijn.lambrechts@sirris.be +32 474 36 54 47 WANT TO GET STARTED? BROUGHT TO YOU BY