ACTIVITIES

PREVIOUS AM Webinars

Most metal additive manufacturing technologies can be categorized to two main groups. Direct melting (usually laser based) and sinter-based powder metallurgy technologies. In this presentation several powder metallurgy technologies will be presented – from the matured high-volume press-based (PM) manufacturing technologies, via the younger metal injection technology (MIM) to a sample of the variety of the additive manufacturing technologies available today. All these technologies share a common challenge – the need to remove the binder that allows making the metal powder into the desired shape and to sinter the powder into a final metal part that has the needed measures and metal properties. Some of the major challenges and the common practices to negotiate them will be presented.

Please email tamc@technion.ac.il if you like to receive a zoom link to join these seminars.

3D printing has revolutionized the way we create physical objects, from prototypes to highly detailed end products. Digital light processing (DLP) is a 3D printing technology that uses light to cure photosensitive resins, allowing for the creation of highly detailed and accurate parts. In our 60 minutes together, I will demonstrate the 3D printer we have developed at NanoDimension – Fabrica group, a 3D printer that offers single-digit micron resolution with nanometric movement precision. We will look into the applications of this field, discuss the challenges and more.

Please email tamc@technion.ac.il if you like to receive a zoom link to join these seminars.

Company overview:
Company overview explaining the strengths and differentiation of Roboze technology compared to other FDM technologies. Main technology patents and portfolio materials overview. (https://roboze.com/en/)

Technologies:
brief overview of technology based on pellet extrusion, with which we will work on different types of materials and with medium and large platforms.
Brief overview on Continuos Carbon Fiber deposition.

New Materials:
study of new bio-based polymeric materials that maintain good mechanical and thermal properties. Materials with metal and ceramic fillers. Soluble support for high temperatures and in particular for Peek.

Please email tamc@technion.ac.il if you like to receive a zoom link to join these seminars.

The main goal of tissue engineering is creating implantable organs and tissue substitutes for patients with a partial or total loss of organ functionality. A fundamental characteristic present in most tissues in the body is a rich vascular network that provides nourishment to tissue-forming cells. A lack of proper vascularization can lead to cell death and subsequent tissue necrosis. Thus, creating functional vascular networks in engineered tissues is a critical challenge in the field. In an adequate environment, vascular networks can spontaneously form when culturing together endothelial cells (ECs, which make the tubular structure) with support cells (SCs, which provide chemical and mechanical support). First, we sought to understand the vessels’ behavior in response to the surroundings’ geometry. For this, we created a novel high-throughput platform that allowed us to observe vessel sprouting and migration processes in real-time. We seeded ECs and SCs on scaffolds with four different compartment geometries and tracked the newly formed branching vessels migration. The migration patterns changed according to the compartment geometry, showing an increased movement towards concave areas of the scaffold.

With this in mind, we aimed to harness the versatility of 3D printing and bioprinting to create a mid-size synthetic vessel scaffold that could connect to self-assembled vascular networks, which are embedded in a natural environment; the formed construct is a tissue flap. We fabricated the polymeric vessel using a 3D printed sacrificial mold. Using a bioink (biological printable ink) formulation of recombinant human type 1 collagen methacrylate (rhCollMA), we bioprinted ECs and SCs and assembled the vessel inside the printed construct. After assembly, the vascular formation process started in the rhCollMA, shrinking the gel and creating a tight contact between the vessel and printed cells. ECs seeded in the vessel lumen created an endothelium-like configuration and communicated with the ECs in the surrounding gel. After in vitro culture, the prevascularized constructs were implanted and anastomosed with a rat host artery using microsurgery. This combination of synthetic and natural materials represents an exciting step towards achieving perfusable thick vascularized tissue flap.

Please email tamc@technion.ac.il if you like to receive a zoom link to join these seminars.

Metamaterials or Architected Materials are structural configurations of repeating patterns that have material properties not found in natural materials.  The shape, the geometry, the topology, the size, and the combination of conventional material give metamaterials their tunable properties.  Metamaterials can be designed to have negative Poisson’s ratio, that are great for ballistic protection and radar avoidance, or zero coefficient of thermal expansion, that are great for stress reduction on environments with high thermal gradients. Other applications of tunable metamaterials can be found in optical filters, high-frequency battlefield communication devices, medical devices, sensors, energy absorption devices, radomes with negative permittivity and permeability characteristics, etc.

The advances in additive manufacturing, lattice generation tools and the multi-material metallic printers enable the manufacturing of metamaterials. The challenge is to conceive, design and validate metamaterial concepts. In this presentation the recent progress in lattice generation tools coupled with optimization techniques will be outlined.  A practical metamaterial discovery process that generates a near zero coefficient of thermal expansion material will be demonstrated using CREO.

Please email tamc@technion.ac.il if you like to receive a zoom link to join these seminars.

Chris Price, Applications Engineer at Nikon Metrology, introduces the principles of industrial X-ray Computed Tomography (CT).

The presentation will begin with the background theory of X-ray generation and microfocus X-ray source. It will then focus on the process and applications of Computed Tomography for the inspection of additively manufactured parts.

This presentation serves as an introduction to those new to the technology while providing deeper theory and applications knowledge to experienced X-ray CT users.

The session may be recorded for distribution within Technion, as long as it is not published on the public internet.

Please email tamc@technion.ac.il if you like to receive a zoom link to join these seminars.

The talk will be on zoom. please contact tamc@technion.ac.il for zoom details.

Abstract:

• Additive technology challenges and barriers
• Industrialize Additive Manufacturing
• Design for Additive Manufacturing
  • Data import and preparation
    • Data Healing / Solidification
    • NX Reverse Engineering & Realize Shape Subdivision Modeling
    • Synchronous technology
  • Design with Convergent Modeling TM
    • Work directly with facets
      surfaces and solids
    • Unlimited flexibility to design
      innovative products
  • Lattice structures design
    • Lightweight components
      and structural integrity
    • Integrated lattice
      structure development
    • Complex geometry
      represented as facets
  • Product validation – Design rules for manufacturability
    • Ensure the part manufacturability
    • Optimize and validate designs against performance requirements and ensure they are suitable for production
    • Avoid costly re-design when a part is designed and found to be inadequate during manufacturing
  • Generative design using topology optimization
    • Multiple load cases
    • Optimized model can be refined with Convergent Modeling
    • Optimize for linear static loads
    • Returns new smooth CAD geometry with optimal configuration
  • Simulate for additive manufacturing
    • Optimize part design with advanced analysis tools
      • Validate optimized designs using
        the advanced capabilities of Simcenter 3D
      • Generate simulation models to validate  convergent body
      • Access all validation and editing tools in one environment
    • Validate product performance
    • Simulate additive processes
      • Identify & Display:
      • Thermal Distortion
      • Residual Stress
      • Re-coater collisions
      • Local Overheating areas
    • 3D Print
      • Print Preparation and Part orientation
        • Drive additive manufacturing technologies for real production
        • Integrated post-printing machining and inspection programming
        • Partnering with industry leaders
      • 2d – 3D Nesting and Support Structures design
        • Tray Content (Parts)
        • Part orientation
        • 2d – 3D Nesting
        • Support Structures design
        • Assign exposure settings
        • Generate ‘Build JobFile’ for Printer

Abstract:

Spider silk is the toughest fiber known to man. It is strong, elastic and lightweight, as well as eco-friendly, non-toxic and biodegradable. Therefore, possible uses for spider silk are limitless.

Spiders, however, are territorial and not subject to domestication. Consequently, their silk, cannot be grown in commercial quantities. To overcome this problem, scientists have attempted to create synthetic spider silk through genetic engineering.

However, mass production of synthetic spider silk has proven extremely challenging and costly. Moreover, until now, the resulting fiber has shown inferior properties: it has been mechanically much weaker than native spider silk and very sensitive to its thermal and chemical environment. These inferior properties also limited the use of these fibers in different industries, and stood in the way of customization for different market applications.

Backed by a decade of research conducted at the Hebrew University in Jerusalem, Seevix was established to overcome the technology barrier and commercialize spider silk. The Company’s patented technology uses genetic engineering techniques to spontaneously generate SVX™, spider silk biopolymer with high consistency. Seevix’s proprietary one-step process decreases production time and costs, and enables scalable manufacturing of man-made spider silk. The integration of Seevix’s SVX™ biopolymer with other polymers has resulted in new composite materials, enabling reinforcement of various matrices and producing meshes, films, beads and threads for products that are more functional and sustainable.

Seevix is initially aiming for high-value target markets in order to maximize profit margins and establish market dominance. We recently launched SpheroSeev, a scaffold for 3D cell culture. Current production scale-up will allow Seevix to enter larger-quantity markets that demand high-performance specialty materials for functional textiles, sports, medical, 3D printing, automotive, aerospace and defense. We are already collaborating with market leaders in multiple industries that can introduce our biomaterial into their fields.

Bio:

Dr. Shen holds a Ph.D. in Biology from Bar-Ilan University and a MBA from Tel Aviv University.

She is the co-founded and CEO of Seevix Material Sciences Ltd.

Prior to founding the company, Dr. Shen served as CEO of MedAware Ltd. (an Israeli healthcare IT company), CEO of Fluonic Inc. (a US based medical device company), and was a consultant to Israeli and US based venture capital funds in which she performed due diligence processes related to biotechnology and medical device technologies.

She has over a decade of experience in R&D and business development management roles in startup and late stage companies in the Israeli life science industry.  She was in charge of advancing products from early-stage research to late-stage development and licensing deals with strategic partners in the US, Europe and Japan.

Abstract:

Are you looking to learn more about Creo’s additive manufacturing capabilities?  Join this session for a discussion of additive manufacturing workflows, including tray set-up, support structure profiles, and printer format.  Learn how to use lattices and simulation-driven lattices to optimize strength-to-weight ratios.

Bio:

Jose Coronado – Director, Creo Manufacturing. PTC

Mr. Coronado is the Creo Product Management Director for Creo Manufacturing applications. He oversees the direction of Manufacturing Solutions within Creo, including Additive Manufacturing, Machining and Mold/Cast design, among others. Mr. Coronado has been working on the Manufacturing Industry for more than 30 years, with experience ranging from being a CAD/CAM user in a High-Tech Mold-Making facility, to multiple Technical, Sales, Business Process Consulting and Product Management roles at IBM and PTC.

Mr. Coronado earned a degree in Mechanical and Electrical Engineering, and an MBA.