Embedded Files
E290-14
E290-14
15548-1
15548-1
Section VIII
Section VIII
Our group adhered to the standards defined by ASTM, ISO, and ASME respective sections for material selection, manufacturing feasibility, and assurance of operational safety. Points of consideration included tolerancing of parts in assembly, sufficient power draw, material yield strength versus weldability, explosive resistance, and routine maintenance associated with pressure vessels.
Feasibility
Feasibility
This HIP Chamber was made to the specifications of SpiTrex-3D in their goal to realize a miniaturized device for their bioimplants. While functional improvements can be made, notable design choices and cost metrics are listed.
Heating element: One-inch stainless steel induction heating rods ~ Q = 6.93 Watts per heating rod. This translates to $0.00718 to run 1 heating element for 180 minutes.
Material choice: Inconel-718 was chosen for its high yield strength to weldability ratio, as the parts in assembly are few and carry complex geometry.
Gas cost: Argon gas medium for one HIP cycle comes out to 0.618 cubic meters for $7.08. However, assuming 95% recycle rate, we achieve an actual cost of $0.35 per cycle.
Dimensions: Constrained within a 10x10x10ft footprint due to available warehouse space. Inner chamber diameter was specified to 30 cm to fit build plates with area 250x250mm. Cylindrical shape was chosen for its geometry being ideal for high stress distribution.
Impact
Impact
Completion of a miniaturized HIP Chamber would benefit SpiTrex-3D greatly in improving implant turnaround times, lower manufacturing costs and subsequently implant costs, and improve flexibility on emergency orders. These outcomes project SpiTrex's global vision of creating a more mobile society that improves patient quality of life, allowing humans the capacity to live longer and accomplish more in their lifetimes.
Controls System Publication
Controls System Publication
EMBS_Final_Submission_7849.pdfThe controls system that was devised for this project has been turned into an IEEE conference proceedings paper under the advisement of Professor Gert Cauwenberghs, resultant upon completing the 122A project requirement. The poster presentation will be given by Joshua Tesoro at the upcoming 2024 IEEE EMBS International Conference to finalize publication into IEEE Xplore.
Created by: Joshua Tesoro
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