Ophir Photonics - An MKS brand’s Post

Our recent collaboration with ORNL on the prediction of grain and subgrain microstructures during the rapid solidification process of additive manufacturing. The GPU-offloaded scalable cellular automation solidification model shows exceptional computational efficiency, completing a single melt track with 4.5 billion cells at 0.1-micron resolution in under 10 minutes on SUMMIT. Thanks to my collaborators at ORNL: Adrian Sabau, Jean-Luc Fattebert #AdditiveManufacturing, #ComputationalMaterialsScience, #HighPerformanceComputing, #Solidification, #Microstructures

🔦 Spotlight on the Prestigious Additive Manufacturing Journal: Exciting Advances in Laser-based Powder Bed Fusion by Afaf Remani, PhD ! 🔦 I recently delved into a transformative study published in the "Additive Manufacturing" journal, titled "In-situ monitoring of laser-based powder bed fusion using fringe projection," authored by Afaf Remani, PhD, Arianna Rossi, and their team from the University of Nottingham. This article offers deep insights into the pivotal role of in-situ monitoring to enhance the quality of parts in additive manufacturing. 🔑 Key Takeaways: Innovative Fringe Projection System: Introduction of a bespoke fringe projection system tailored for real-time layer monitoring within PBF-LB machines, marking a significant advancement in manufacturing technologies. Predictive Quality Indicators: Utilization of custom quantitative indicators and statistical control charts to effectively predict changes in part density, crucial for maintaining high-quality production standards. Validation Through XCT: Effectiveness of the proposed methods confirmed through X-ray computed tomography (XCT), demonstrating their capability in identifying and correcting defects early in the manufacturing process. 📊 Highlighted Results: Enhanced Monitoring Accuracy: The fringe projection system provided detailed topographical data that accurately predicted local density variations, which correlate strongly with the final part quality. Successful Prediction of Defects: Application of statistical control charts to the in-situ data allowed for the early detection of potential defects, enabling corrective actions before the completion of the build. Validation of Process Improvements: XCT validation proved the effectiveness of the fringe projection method in improving the overall build quality by detecting and addressing issues that are not visible until post-process inspections. This research is a game-changer for professionals in #additivemanufacturing, #materialscience, and #industrialengineering, highlighting the importance of integrating in-situ monitoring to ensure product quality. 🔗 Dive deeper into this transformative research by reading the full article here: [https://lnkd.in/gVDCr3Kz] #3Dprinting #manufacturing #engineering #technologyinnovation #qualityassurance #PBF-LB #researchhighlight What are your thoughts on the potential of in-situ monitoring technologies in additive manufacturing? Share your views in the comments below! 📈🔧 4

Did you know that you can get diagnosed in just a few minutes with only a drop of blood ? This is made possible by microfluidics, a technology used in cutting-edge medical devices like portable blood tests, allowing for rapid and precise diagnostics within networks of channels thinner than a human hair ! The new 3D AG white paper dives deep into how cutting-edge microfluidic components are being manufactured more efficiently and cost-effectively, thanks to an exciting collaboration with FEMTOprint SA and University of Applied Sciences and Arts Northwestern Switzerland FHNW. Whether you're in healthcare, tech, or just love innovation, microfluidics is paving the way for the future ! #Microfluidics #Innovation #Tech #Manufacturing #WhitePaper #Science

🔝 Today, we want to revisit the top 3 most valuable #metallurgy articles from the past year that captured not only the attention of industry media but yours as well – the stories everyone couldn't stop talking about.   Explore these captivating articles to see if you've already immersed yourself in them. If not, now's the ideal moment to get up to speed—everything you need is conveniently gathered in one place. Take a peek! 📚👀   1️⃣ “#Retech Secures Order for Advanced Electron Beam (EB) Hearth Melter for North American Destination”   Read here ⤵ https://lnkd.in/dFtMam_9   2️⃣  “Cooperation between Retech and GeniCore in the area of spark plasma sintering”   Read here ⤵ https://lnkd.in/dNXMQcGj   3️⃣ “Retech Joins America Makes, the National Additive Manufacturing Innovation Institute” Read here ⤵ https://lnkd.in/dF_KMVn3   Enjoy reading! Be sure to share your thoughts in the comments below. We would love to hear your opinions of these articles! 📚💬   #heattreatment

Pressure sensors are employed in several industrial applications spanning from aerospace to healthcare, but they often require a wired connection between the sensing part and the reader and may result bulky or with a predefined footprint. In this new paper (https://lnkd.in/dirhFrKM) available on IEEE Sensors Journal, a wireless pressure sensor realized with Additive Manufacturing (AM) is presented. The degrees of freedom offered by AM are exploited to design and quickly realize flexible substrates that are employed to transduce pressure into a shift in the frequency response of the sensor. In particular, two different polymers (PLA - Polylactic Acid and TPU - Thermoplastic Polyurethane) with different infill densities have been investigated to manufacture the sensing component and their calibration curve has been characterized in detail. Congratulations to Daniela Gasperini for the remarkable work! #pressure #additivemanufacturing #wireless #sensing #RF #3Dprinting #AM #PLA #TPU #DII #Crosslab #Forelab

CASE OF STUDY: A High-Speed Look at Additive Manufacturing by: Dr. García-Moreno Read the complete text published by Phantom High Speed: ➡️ https://shorturl.at/dqvMH  #MoltenPool #Tracking #LaserMetalDeposition #Monitoring Dr. García-Moreno emphasizes the crucial role of monitoring techniques in ensuring the quality and consistency of additive manufacturing processes, particularly in laser metal deposition (LMD). His research focuses on understanding the intricate interactions among the molten pool, powder stream, and substrate, all influenced by their respective properties. Advanced sensors with high-acquisition rates are essential for studying these dynamics. Recently, Dr. García-Moreno and his research group investigated how particle velocity and powder stream dynamics impact the LMD process. They developed an adaptive particle image velocimetry (PIV) method to measure metal particle velocities in flight, crucial for optimizing nozzle convergence zones and powder stream behavior. Using a Phantom VEO 710 high-speed camera, their experiments captured the LMD process at high frequencies with exceptional resolution. Beyond velocity, the camera facilitated analysis of molten pool surface flows, predicting defects assessing geometric properties. Dr. García underscores the potential of these insights to enhance real-time process control and post-production inspections. Other interests using high-speed imaging include ripple frequency analysis in molten pools and segregation dynamics in metal matrix composites. His research aims to expand into other AM technologies like powder bed fusion and electron beam melting.

We stopped by the product demo area at this year's Photonics West to see SCANLAB GmbH showcase its innovative SCANmotionControl software! SCANmotionControl enables the simulation of entire laser processes ahead of time, meaning no more laborious trial-and-error-based calibration when identifying optimal process parameters. The software calculates optimal trajectories from specified machining patterns and process parameters, synchronising scan head movement and laser control while taking into account the physical limitations of the scan head. Learn more in the article below! #PhotonicsWest #lasermarking #photonics #lasers

📢 #HighlyCited 1. Infill Microstructures for Additive Manufacturing https://lnkd.in/gS2tdncK 2. Determining the Best Dressing Parameters for External Cylindrical Grinding Using MABAC Method https://lnkd.in/gNkjx7qh 3. Automatic Registration Algorithm for the Point Clouds Based on the Optimized RANSAC and IWOA Algorithms for Robotic Manufacturing https://lnkd.in/gh6Razif 4. Research on Key Factors of Sealing Performance of Combined Sealing Ring https://lnkd.in/gpApukkC MDPI Encyclopedia MDPI

ALIO Industries continuously solidifies its leadership in the area of nanometer-level precision motion control with its patented Hybrid Hexapod®. This technology stands as a game-changer in 6D motion, achieving unprecedented levels of flatness, straightness, and rigidity required for critical machining and bonding operations. The Hybrid Hexapod® has proven its exceptional capabilities, providing nanometer-level precision across all six degrees of freedom, a feat that marks a significant advance in nanotechnology applications. It not only challenges previous standards but establishes new benchmarks in sectors ranging from optics to semiconductor manufacturing, where exactitude is paramount. In contrast to conventional hexapods that falter in 6D precision, the Hybrid Hexapod® has redefined accuracy with its novel design. It merges a tripod parallel kinematics for vertical and angular movements, with a serial kinematic structure for lateral motion, and a rotational stage for full 360-degree yaw. This hybrid approach ensures flawless execution of complex, multi-axis tasks, vital in high-stakes applications such as 4K lens production where absolute precision is crucial. ALIO’s commitment to pushing boundaries is reflected in the Hybrid Hexapod®, which serves as an emblem of innovation, challenging engineers to expect the extraordinary from their instruments and enabling achievements once deemed unreachable. #hybridhexapod #hexapod #6DOF #sixdegreesoffreedom #6Dprecision

#AdditiveManufacturing (AM) allows us to create objects with complex shapes, often with hollow spaces inside, that are difficult, if not impossible, to make with conventional manufacturing techniques. Why are we not seeing more objects and products made by AM? There are many reasons, but one of them is the challenge of determining the qualifications of the objects. The more complex their shapes are, the more difficult it is to inspect and qualify them. #Xray computed tomography (CT) is uniquely suited to overcome this challenge. X-ray CT can nondestructively image internal structures of AM-made objects, allowing us to evaluate their dimensions in detail and compare them to the original CAD drawing. In addition, CT can reveal and quantify defects such as cracks and voids. This webinar by Lennart Schulenburg, CEO of VisiConsult - X-ray Systems & Solutions GmbH provides a great overview of how X-ray CT can address many challenges you face in AM product development. It goes beyond inspection and provides crucial feedback for design optimization. It's only 27 min and covers the fundamentals of CT, instrumental considerations, application examples, and advanced data analysis and feedback process. I highly recommend it. Watch the recording: https://lnkd.in/g-dfDjCv #computedtomography #failureanalysis