Cavitar at Elmia Welding & Joining Technology 2024 trade fair
You are welcome to visit Cavitar at our booth A09:20 at Elmia Welding & Joining Technology trade fair taking place May 14-17, 2024 in Jönköping, Sweden. Come to discuss with…
Cavitar Presents Arcless Academy at NWE 2024
Join us at the Nordic Welding Expo 2024 at Tampere, Finland (March 19-21) and witness yourself the new method for weld education. We have live demos at our booth A130.
Season’s Greetings from Cavitar!
Warmest thank you to all our customers and partners for the year 2023. Together we made remarkable achievements in quality assurance of welding in several critical welding applications in see,…
Cavitar Remote Visualization of Welding & Additive Manufacturing Processes at SCHWEISSEN & SCHNEIDEN 2023
Cavitar will attend the SCHWEISSEN & SCHNEIDEN 2023 trade fair with its expert partners: SERVISOUD (France) is an integrator offering welding mechanization solutions, as well as portable systems for weld…
Visit FABTECH 2023 to Witness Cavitar Welding Cameras in Action at Live Welding Demos
We are thrilled to announce that Cavitar is gearing up for FABTECH 2023, the ultimate industrial event, to showcase our Cavitar Welding Cameras. This year held in the vibrant city…
Cavitar Ltd. and InterTest, Inc. Announce Partnership in Weld Viewing Technology
The InterTest, Inc. and Cavitar Ltd. partnership will increase the Cavitar Welding Camera product distribution and customer support for welding quality assurance and inspection groups in North American manufacturing, automotive,…
Cavitar Ltd. Appoints a New Chairperson for the Board
In the last shareholder meeting of privately owned Cavitar Ltd, Sari Vaajanen-Ärrälä (MSc [Econ], Certified Board Member (CBM) and Chairman) was elected as new chairperson of the board. Globally operating…
The Best In Welding 2020 Award from SHY
The Finnish Welding Society, SHY (Suomen Hitsausteknillinen Yhdistys) awards biannually companies in Finland that have made an impact on the welding community. The 2020 awards were meant to be handed…
RAMLAB + WAAM + Cavitar Welding Camera C300
WAAM, shortened from Wire Arc Additive Manufacturing, is also known as Directed Energy Deposition-Arc (DED-arc). It is probably the oldest, outwardly simplest, but least talked about of the range of…
WAAM – Wire Arc Additive Manufacturing Monitoring with Cavitar Welding Camera C300
Author: RAMLAB RAMLAB has a strong focus on material quality and quality assurance. Our WAAM (Wire Arc Additive Manufacturing) processes are continuously being monitored and adjusted live when necessary. In…
Welding Defect – Watch How Slag Inclusion Happens!
This video shows welding defect slag inclusion as it is happening in a CMT (Cold Metal Transfer) process. You can see in the footage how the slag inclusion (circled) floats…
Case: Cavitar Welding Camera Used in Teaching and Training of Future Welders at SAKKY
Back in 2019, when we were still more in the development stage of our Cavitar Welding Cameras, we received a surprising visit from a welding instructor 500 kilometers away from…
Metal 3D Printing + Cavitar Welding Camera C300
This is Wire Laser Additive Manufacturing (WLAM) visualized using our Cavitar Welding Camera C300. The process prints metal in 3D by using laser processing with the CoaxPrinter head from Precitec…
Side by Side Comparison of Different Imaging Techniques
CAVILUX Laser Illumination has been an important tool for welding researchers across the globe for many years. This video of Cold Metal Transfer (CMT) process demonstrates the effect of no…
3D Printing with Laser Metal Deposition
Laser Metal Deposition, or LMD for short, has many benefits: it reduces waste, it is suitable for large components, it allows customization at a high level, and it can be…
Common Welding Methods and the Use of Laser Illumination in Welding Imaging
Author and copyright: Cavitar Ltd 1 Introduction Welding refers to a process in which materials, typically metals or thermoplastics, are joined together using high temperatures to melt the materials to…
Figure 1: Reflections in the melt pool surface ripples
Observing Molten Pool Surface Oscillations During Keyhole Processing in Laser Powder Bed Fusion
Authors: Leonardo Caprio, Ali Gökhan Demir and Barbara Previtali of Politecnico di Milano Description The research team at the Department of Mechanical Engineering of the Politecnico di Milano has studied…
Benefits of Cavitar Welding Cameras
Visual real-time monitoring of welding processes utilizing welding cameras is becoming a more common and prominent process monitoring method. Typically the evaluation of the welding process has been done through…
WeldGalaxy logo
Cavitar Chosen for the WeldGalaxy Mentoring Program
Cavitar is one of the 10 companies chosen for this first ever WeldGalaxy mentoring program, led by The Welding Institute (TWI). All of the selected companies are “arc welding champions”…
Figure 1 – Laser hole drilling of Al with sinusoidal modulation at 8khz.
Enhancement of Laser Material Processing Using Periodical Modulation of Laser Light Intensity
Authors: Sonny Ly, Gabe Guss, Alexander M. Rubenchik, Wesley J. Keller, Nan Shen, Raluca A. Negres, Jeff Bude, Lawrence Livermore National Laboratory Description The research team at Lawrence Livermore National…
Wetting Process during Laser Brazing of Aluminum Alloys with Aluminum-Based Braze Material
The Bremer Institut für Angewandte Strahltechnik - BIAS studied the wetting behavior in laser brazing. To reveal periodic melt pool propagation effects that occur during laser brazing of aluminum, and for a better understanding of those effects in laser brazing in general, the researchers analyzed high-speed recordings of the brazing process with aluminum alloy.
Laser Ablation
Accurate imaging of laser ablation, where a high energy laser with very small spot size and short pulse duration is shot onto a material surface in order to change the surface properties, requires high frame rates due to the extremely fast nature of the process itself.
Visualization of Gas Flow in a Multilayer CMT process
Visualization of gas flow in a multilayer CMT process. See the details of the core process and obtain high quality images without motion blur.
Reveal the Spatter in Additive Manufacturing with CMT Process
See the spatter produced by a CMT process
3 kW Laser Welding with Filler Wire
3 kW laser welding process with filler wire where the laser melts the added material and together they form a solid weld bead.
Gas Flow of a Blowtorch with Schlieren Imaging
See the otherwise invisible gas flow of a blowtorch with Schlieren imaging and CAVILUX.
Flux Coated Electrode Hand Welding
Slow motion of a flux coated electrode hand welding process visualized with CAVILUX laser illumination.
Underwater Shockwave – Illumination Comparison
Comparison of three different illuminations to image an underwater shockwave.
Selective Laser Melting (SLM) – for 3D Metal Printing Process
Laser additive manufacturing - See clearly the powder bed in 3D metal printing process. CAVILUX HF laser illumination completely eliminates the bright plasma light of the process.
Meet Cavitar and our distributors at fairs in 2019
Welcome to meet Cavitar and our distributors at fairs and workshops around the world. This list will be updated as participation to new events are announced.
MIT summer short course on high-speed imaging
Cavitar will take part in and give a presentation on laser illumination at MIT Edgerton Center's short course on high-speed imaging. The 4-day course will have an extensive coverage of high-speed imaging for motion analysis as well as various systems and techniques.
Schlieren Imaging of Welding GMAW with Front Illumination
Application: Schlieren imaging of arc welding Interest: Gas flow of protection gas, melt pool behavior, drop forming, spatter
Additive Manufacturing with Laser and Powder-Bed
Video of additive manufacturing for metals visualized with CAVILUX laser illumination technology.
Thank you to our distributors
Along with welcoming the VISION 2018 fair, that took place in Stuttgart beginning of November, we welcomed our distributors to get an update on our current developments as well as on our latest applications and products.
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Thank you for visiting us @ VISION 2018!
A week has passed since VISION 2018 and breaths have been caught. For us the fair always presents an exceptional platform to meet new prospective customers and partners, this year being no exception. Thank you for the excellent and high quality conversations.
Comparison video: Halogen light vs. CAVILUX laser illumination
Visualization of a discharge of an electrical switch (16 A, B curve) at 2000 frames per second. Electrical switches are key safety components in many systems. High-speed imaging is used to study their operation. Choosing the right lighting matters.
Effective and Versatile High-Power Laser Illumination
Diode laser illumination enables critical measurements in various industrial and scientific applications. It is an ideal light source for high-speed cameras and machine vision cameras alike. It enables the visualization of applications that may not be achieved with more conventional light sources like LED or halogene lamps. Read about the benefits of this high-power laser illumination.
Guide to High-Quality Welding Imaging
The imaging of welding is often challenging since the camera can easily be blinded by the large amount of light emitted by the welding process. Cavitar presents guidelines for achieving high-quality images of welding.
Submillimeter ice crystal formation at 6 km altitude
Image of submillimeter ice crystal formation at 6 km altitude. Image taken with special measurement system installed at the wing of an airplane
Measurements of Hypersonic Boundary-Layer Instabilities Using a Pulsed-Laser Schlieren Technique
The University of Maryland has used CAVILUX HF and CAVILUX Smart to measure hypersonic boundary-layer instability with the help of schlieren imaging technique.
COMBILASER project ends
The COMBILASER project is coming to its end, and the final steering committee will be hosted by IK4 LORTEK in Spain December 4-5 2017.
Spatter Behavior in Laser Beam Welding Process
Spatter is an unwanted phenomena during welding process that often occurs during welding in high speeds. Ilmenau University of Technology wants to understand the formation of spatter and especially how to reduce it to get higher output.
An analysis of the acoustic cavitation noise spectrum: The role of periodic shock waves
Glasgow university is studying periodic shockwaves in cavitation.
Cavitar is part of the EU-project HORIZON2020 COMBILASER consortium
The COMBILASER project where Cavitar is a project partner has published a video giving an insight about the activities.
Spray diagnostics with CAVILUX HF
University of Erlangen-Nürnberg is studying oil sprays at different frame rates and magnifications.
High-Speed Visualization of Electromagnetic Pulse Welding
Darmstadt University of Technology is studying electromagnetic pulse welding which is a method of impact welding. The process enables metallurgical bonds between dissimilar metals.
Meet our distributors at fairs in 2017
Many of Cavitar's distributors will present at various fairs during this year and welcome you at their booths.
Research and Development of Modern Variants of Classical Arc Welding Technologies with High-Speed Videography with Laser Illumination
LABSOLDA in Brazil has studied modern variants of classical TIG and MIG/MAG welding with high-speed imaging utilizing CAVILUX HF Laser illumination.
Deconvolution of Acoustically Detected Bubble Collapse Shockwave
University of Glasgow is studying very fast phenomena of shockwave from bubble collapse in ultra-high-speed using CAVILUX Smart laser illumination.
Fuel Injection Measurements with CAVILUX Smart Diode Laser
CAVILUX laser light is monochromatic with very low coherence which is a major advantage in microscopic imaging. Read how RWTH Aachen has applied our illumination to study fuel injection.
Cavitar’s Welding Camera Used by Serimax in Orbital Welding of Offshore Pipes
Serimax is using Cavitar's welding camera for their demanding orbital MIG welding processes in offshore oil and gas pipe line welding. The camera enables the welder to control the process from a save distance to the process and from an ergonomic position.
High-Speed Visualization of Flux Coated Electrode Hand Welding
The Institute of Materials Science at the Gottfried Wilhelm Leibniz University Hanover, Germany studied electrode hand welding. The burning behavior of that electrode was used as a reference to study the behavior of other commercially available electrodes but also to study the behavior of electrodes from own development projects.
Shockwaves During Cavitation Creation with Sonosensitizer
Formations of shockwaves during the creation of cavitations with a sonosensitizer. The results have an implication on medical treatments.
