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Characterization Of 3d Printed Lattice Structures Used In The Design Of Modified Compression Release Stabilized Transhumeral Prosthetic Sockets, Jade Myers
Theses
Abstract A prosthetic socket is the critical interface between a person and their prosthetic device. Pressure, shear, and friction experienced by the residual limb from wearing a socket can damage soft tissue. While Compression Release Stabilized (CRS) style sockets are beneficial for enhancing prosthesis stability, range of motion, and control, the abrupt differences in compression throughout the socket present risks for tissue damage to the residual limb. A socket design that enables clinicians to control a progressive decrease in firmness in the transition areas between compression and release could mitigate such undesirable effects. Density-graded lattice structures designed and produced with …
Vibration Powder Dispensing And Gravity-Fed Powder Delivery For Directed Energy Deposition Additive Manufacturing Systems, Andrew Greeley
Vibration Powder Dispensing And Gravity-Fed Powder Delivery For Directed Energy Deposition Additive Manufacturing Systems, Andrew Greeley
Theses
Directed energy deposition is a class of additive manufacturing processes where focused thermal energy melts and fuses material being deposited on a part. This type of process is useful for making high performance parts, remanufacturing and repair, and for making multi-material parts. However, in systems where powder feedstock is used, only a fraction of the powder ends up in the part and the rest is usually wasted. Increasing the amount of powder captured in powder-fed directed energy deposition systems is the focus of this work. The proposed solution is to combine vibration powder dispensing and gravity-fed powder delivery systems to …