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,…
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 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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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”…
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…
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.
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. See the details of the core process and obtain high quality images without motion blur.
See the spatter produced by a CMT process
3 kW laser welding process with filler wire where the laser melts the added material and together they form a solid weld bead.
See the otherwise invisible gas flow of a blowtorch with Schlieren imaging and CAVILUX.
Slow motion of a flux coated electrode hand welding process visualized with CAVILUX laser illumination.
Comparison of three different illuminations to image an underwater shockwave.
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.
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.
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.
Application: Schlieren imaging of arc welding Interest: Gas flow of protection gas, melt pool behavior, drop forming, spatter
Video of additive manufacturing for metals visualized with CAVILUX laser illumination technology.
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.
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.
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.
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.
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.
Image of submillimeter ice crystal formation at 6 km altitude. Image taken with special measurement system installed at the wing of an airplane
The University of Maryland has used CAVILUX HF and CAVILUX Smart to measure hypersonic boundary-layer instability with the help of schlieren imaging technique.
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 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.
Glasgow university is studying periodic shockwaves in cavitation.
The COMBILASER project where Cavitar is a project partner has published a video giving an insight about the activities.
University of Erlangen-Nürnberg is studying oil sprays at different frame rates and magnifications.
Darmstadt University of Technology is studying electromagnetic pulse welding which is a method of impact welding. The process enables metallurgical bonds between dissimilar metals.
Many of Cavitar's distributors will present at various fairs during this year and welcome you at their booths.
LABSOLDA in Brazil has studied modern variants of classical TIG and MIG/MAG welding with high-speed imaging utilizing CAVILUX HF Laser illumination.
University of Glasgow is studying very fast phenomena of shockwave from bubble collapse in ultra-high-speed using CAVILUX Smart laser illumination.
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.
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.
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.
Formations of shockwaves during the creation of cavitations with a sonosensitizer. The results have an implication on medical treatments.
Cavitar Ltd. Appoints a New Chairperson for the Board
