Value Added Abstracts
Mohit Kumar
Abstract
Fundamentals of SLA/DLP 3D Printing: Understanding how the optical components (such as light source, Digital Micromirror Array, illumination and imaging optics), file processing software (tessellation techniques, support addition methods, anti-aliasing) and printing approach (such as physics of adhesion in bottom-up printing, CLIP technology and top-down printing) affect production speed and part quality. Differentiating between factors affecting true performance versus brochure myths and obscure technical data and how to make the right machine purchase decision for a given application. How SLA/DLP technology is being used for end-use parts production (for precision industries such as dental, hearing aid and jewelry) will be covered. Development of 3D Printing Inks for SLA/ DLP Technology: The chemistry of photopolymers (urethane acrylates, epoxy acrylates etc) for DLP 3D printing has been inspired from the UV Coatings (urethane acrylates/methacrylates) and adhesives (cyanate esters) industry. An explanation of the transition from wood coatings and nail gels to SLA/DLP 3D Printing resins and how a given polymer base is used to create different physical properties required for a given industry (such as bio-compatibility for nail gels/ dental 3DP resins and toughness for UV Coatings/ engineering-grade materials) will be provided. Finally, a briefing on chemicals developed specifically for 3D Printing such as HA-TCP, ZrO2, SiN and wax loaded materials will be given alongwith how they could disrupt the medical (dental/ bone implants), engineering (aerospace/ automotive/ industrial electronics) and jewelry domains.