Zicheng Wang’s Post

Interesting structures that could be applied to for example to the core of a printed structure.

3D-printed polymers are now common in aerospace. Here’s how Materialise is trying to push for metals to follow its footsteps: 👉🏼 https://lnkd.in/g3PmtWAm

What is a 3D-printed rocket engine? A 3D-printed rocket is a spacecraft that features additively manufactured components using 3D printing technology. Compared to most traditional rockets, the 3D-printed variety is more fuel efficient, lighter in weight and built in a fraction of the time.

𝗔𝗱𝘃𝗮𝗻𝗰𝗶𝗻𝗴 𝗰𝗼𝗺𝗽𝗹𝗲𝘅 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲𝘀 𝟯𝗗 𝗽𝗿𝗶𝗻𝘁𝗶𝗻𝗴 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗖𝗼𝗺𝗽𝘂𝘁𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗗𝗲𝘀𝗶𝗴𝗻 The image below captures a computed tomography of a 3D-printed carbon lattice resistor (𝘺𝘦𝘭𝘭𝘰𝘸). The lattice was computationally designed to maximize its electrical heating within a reactor working at temperatures above 1000°C and allow a methane-nitrogen mixture to flow through its structure. The production method of the carbon lattice was our PBF+ PIP technique. https://lnkd.in/d9tC8ykS What makes this work stand out? Carbon (𝘳𝘦𝘥) nucleation via methane decomposition directly within the porous structure, enhancing the process efficiency. No other catalysts were used, ensuring ultra-pure carbon production and hydrogen (as a byproduct 😉) This work highlights how computational design and additive manufacturing can merge to create innovative solutions in process intensification. #3DPrinting #ComputationalDesign #AdvancedMaterials #carbon #processintensification #MEMTi

🔍 **Revolutionizing Concrete: Inspired by Nature!** Researchers at Princeton University have developed a groundbreaking method to enhance the durability of concrete structures by focusing on crack resistance. Using advanced 3D printing and robotic technology, they created twisted concrete parts inspired by the double-helix structure of coelacanth scales, which provide remarkable strength and resistance to cracking. Key highlights of this innovation include: - **63% more resistance to cracking** compared to standard concrete - A **two-part extrusion system** that accelerates hardening and maintains shape during printing - Advanced robotic manufacturing enabling complex designs previously difficult to achieve This method promises to revolutionize the construction industry by producing stronger, longer-lasting structures, enhancing safety and efficiency. #ConcreteInnovation #3DPrinting #Robotics #Construction #Sustainability #Engineering

Ever wondered why 3D printing is so useful in aerospace applications? 🚀 Ryan Holbrook, an additive engineer here at Impulse Space, has the answer. By 3D printing the majority of our engine parts in-house, we unlock new possibilities that traditional manufacturing can't offer. From cooling channels to complex geometries, additive manufacturing allows us to optimize performance while accelerating development. With full control over the process—from material feedstock to post-print quality checks—we ensure precision at every step. The result? High-performance propulsion systems that push the boundaries of in-space transportation. #3DPrinting #SpaceTechnology #ImpulseSpace

Join an UltiMaker exclusive webinar testing and breaking composite materials, where you will have the opportunity to delve into advanced techniques and practical insights into 3D printing with composite polymers. Save your seat today 🔗 https://bit.ly/48LJDit

🔬 Exciting advancements in metal additive manufacturing! A team from Lawrence Livermore National Laboratory, Stanford University, and the University of Pennsylvania has developed a novel wet chemical etching process that enhances the optical absorptivity of conventional metal powders used in 3D printing. By creating nanoscale grooves and textures on metals like copper and tungsten, the researchers increased absorptivity by up to 70%. This breakthrough allows for more effective energy transfer during the laser melting process, leading to improved print quality and reduced energy consumption. Their findings could revolutionize the printing of high-purity metals without damaging AM systems, making it feasible for lower-power commercial machines. This democratization of copper 3D printing opens up new possibilities for applications in clean energy and advanced manufacturing, all while minimizing operational costs and environmental impact. Kudos to the team for paving the way for a more efficient future in metal 3D printing! #AdditiveManufacturing #3DPrinting #Metal3DPrinting #Innovation #Sustainability #Copper

Tomorrow, we will be presenting our latest research findings at the #ACM6 in Columbia, South Carolina. 🚀 The shown manufacturing approach combines #AFP and #3D printing for out-of-autoclave manufacture of double-curved thermoplastic composite structures. The combination of the two purely additive robotic manufacturing processes in-situ consolidation Automated Fibre Placement and Fused Granular Fabrication 3D printing is a promising process route to mitigate triangular geometry-induced gap defects. The gaps are filled with short-fibre reinforced thermoplastic composite material. The structural impact of the defects is mitigated and higher performance of complex-shaped structures can be achieved. The first results are going to be presented tomorrow at The Sixth International Symposium on Automated Composite Manufacturing (ACM6) in Columbia, South Carolina.   Your contacts: Lukas Raps and Simon Hümbert   Find more information here: https://lnkd.in/e9yWNjMS Visit our YouTube channel for more video insights: https://lnkd.in/g9jm3kA   Deutsches Zentrum für Luft-und Raumfahrt e.V.   #dlrbt #dlr #afp #3Dprinting #research #aerospace #technology #composites #additivemanufacturing #ACM6 #robotics #thermoplastics #outofautoclave #innovation #3DDruck #Technologie #Raumfahrt #Luftfahrt #Forschung 

I’m so excited to share my latest publication in Additive Manufacturing! When I began my work as an AM researcher, publishing in this journal was a pipe dream. However, after over a year of work on this project, my research on a novel print head improvement to pellet based 3D printing is now available for anyone to read through open access. Enormous thanks to my mentors and lab mates for their support throughout this project.   Title: “Integration of a needle valve mechanism with Cura slicing software for improved retraction in pellet-based material extrusion”   🔍 Our study introduces a novel needle valve approach for flow control in FGF systems, enhancing part complexity while reducing stringing. 🛠️ Using off-the-shelf slicer software, we've made valve control g-code generation accessible for users, streamlining implementation. 📉 Our experiments showcased a significant reduction in stringing, enabling intricate prints like soft robotic actuators and complex geometries. 💡 This study underscores the potential of needle valves as a cost-effective solution for precise flow control in FGF systems.   Authors: Luka Morita, Asad Asad, Xiaoruo Sun, Mehnab A., Dan Sameoto Read here: https://lnkd.in/ejcNyRvK #AdditiveManufacturing #3DPrinting #Innovation #ResearchPublication