Bjorn Tolentino

Sintavia is a Tier 1 additive manufacturing company that is vertically integrated and focuses on manufacturing of production hardware for aerospace applications. My role as an Additive Design Engineer takes on many forms. Project Management: - This includes management of customer orders regarding time frames, outside sourcing and deadline delivery. In addition, reports, presentations and data sharing are utilized. Design for Additive manufacturing: - I'm responsible for CAD component optimization, development of support structures, build orientation, and exporting build jobs to additive machines. Usage of build processors and slicing software is involved. R&D: - I have started the initiative in several forms of parameter development and build optimization process settings. This requires literature overview, mechanical testing overview, failure analysis and microstructural characterization of metal alloys. Development of print parameters and heat treats for various materials as well. Software Used: - Materialise Magics (Highly Proficient) - NX Modeling (Proficient) - NX Additive and Simulation (Highly Proficient) - Amphyon (Proficient) - The full suite of EOS software (Highly Proficient) - ImageJ (Proficient) - GOM Inspect (Competent) LPBF Machine Usage and Parameter Development: - EOS M400-4 - EOS M400-1 - EOS M290 - Trumpf TruPrint 3000 - Concept Laser M2 Cusing (all generations) - SLM 280 HL (Single and Dual Laser) EBM Machine Usage: - Arcam A2X - Arcam Q20+ Alloys Printed and Used in R&D: -AlSi10Mg -F357 -A6061-RAM2 (Printed Only) -Ti64 -Ti5Al2.5Sn -IN718 -IN625 -HAST-X (Printed Only) -17-4 PH Steel -316L Steel (Printed Only) -AlSiCu -GRCop-42

At the time, Sintavia was an extremely small group with three technicians including myself. I was personally responsible for the following: Powder Handling of Aluminum, Titanium, Steel, and Nickel Alloys: -This portion of responsibility involved inventory, sieving, sample taking and storage while utilizing lean techniques and proper PPE usage. LPBF Machine Setup - This responsibility dealt with the setup, turn over, troubleshooting, and powder loading of EBM & LPBF systems such as the ARCAM Q20+, Concept Laser M2 Cusing (First Generation), Trumpf Truprint 3000, SLM 280HL, EOS M290, EOS M400 and EOS M400-4. This also included proper usage and upkeep of each respective machine manufacturer's sieve machines. My extra role was to provide focus adjustments to the M290 systems, manual alignment of the M400-4 lasers and laser power measurements for all EOS systems. Consumable Replenishment and Upkeep: - Housekeeping is a key role for an additive technician. I was accountable for replenishing consumable wipes and chemicals used in the upkeep of all EBM and LPBF machines. This incorporated but was not limited to the changing and passivating of LPBF filters and replacement of EBM helium tanks.

• Atomize, sieve, and organize metallic powders for microstructure analysis w/ focus on aluminum alloys • Mount, cure and polish atomized powders • Operate and clean gas atomizer while extracting atomized powders • Microstructure and porosity analysis of atomized powders via microscopy • Minor work w/ Uranium Molybdenum samples including: mounting, polishing, quenching and heat treatment • Use of X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Optical Microscopy, Energy-dispersive X-ray Spectroscopy (EDS) • Literature review of atomization process, melt breakup phenomena and powder solidification • Post-print microstructure, porosity measurement, and mechanical testing of additively manufactured parts • SLM 125 operation & safety • SLM 125 & gas atomization parameter study • Use of Materialise Magics • Attend and present in weekly meetings that overview parametric study of advance material equipment and characterization of resulting powder/build-parts for quality assessment

• Assist customers with textbook needs in person or via telephone • Assist with inventory, organizational tasks and online orders • Receive, ship, process, and package UPS orders and reconcile inventory • Cashier

• Answer and service customer in-calls including product retention • Verify insurance purchases as well as perform payment processing • Direct contact w/ pharmaceutical advocacy programs on behalf of prioritized patients • Scan, organize, and input incoming documentation via email, fax and snail mail.