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Effects Of Conformal Cooling Channels On Additively Manufactured Injection Molding Tooling, Tyler Blaine Whatcott
Effects Of Conformal Cooling Channels On Additively Manufactured Injection Molding Tooling, Tyler Blaine Whatcott
Theses and Dissertations
This study focuses on the cycle-averaged mold temperature of additively manufactured injection molding tooling and how it is affected by conformal cooling channels. This was done by producing a benchmark mold out of Digital ABS produced by Stratasys, an acrylic based photopolymer, which was then used to produce injection molded parts until tool failure. Another, more cost-effective material, High Temp Resin produced by Formlabs, another acrylic based photopolymer, was also tested but yielded very little success. Then the mold design was altered by adding conformal cooling channels and again tested by producing injection molded parts while tracking the mold temperature. …
Silicone 3d Printing Processes For Fabricating Synthetic, Self-Oscillating Vocal Fold Models, Taylor Eugene Greenwood
Silicone 3d Printing Processes For Fabricating Synthetic, Self-Oscillating Vocal Fold Models, Taylor Eugene Greenwood
Theses and Dissertations
Synthetic, self-oscillating vocal fold (VF) models are physical models whose life-like vibration is induced and perpetuated by fluid flow. Self-oscillating VF models, which are often fabricated life-size from soft silicone elastomers, are used to study various aspects of voice biomechanics. Despite their many advantages, the development and use of self-oscillating VF models is limited by the casting process used to fabricate the models. Consequently, this thesis focuses on the development of 3D printing processes for fabricating silicone VF models. A literature review is first presented which describes three types of material extrusion 3D printing processes for silicone elastomers, namely direct …