Mechanical Interface for Iterative Hybrid Additive and Subtractive Manufacturing

dc.creatorWeflen, E.D.
dc.creatorGinther, M.C.
dc.creatorEldakroury, M.A.
dc.creatorFrank, M.C.
dc.date.accessioned2021-12-07T18:57:26Z
dc.date.available2021-12-07T18:57:26Z
dc.date.issued2021
dc.description.abstractAdditive and subtractive manufacturing systems for in-envelope production of large objects face challenges with respect to reach and access of cutting tools. One approach to overcoming this is iteratively alternate between additive and subtractive processes. However, polymer objects require cooling before machining, resulting in poor thermal welding when the subsequent polymer layer is deposited. This paper describes a method to enable iterative processing for in-envelope hybrid manufacturing that uses a mechanical bond to transition back to additive deposition after machining. This is accomplished using an AMBIT screw-extrusion head to additively manufacture a section of the object within a 5-axis machining center. After the object is machined, a dovetail cutting tool forms undercut geometry in the interface where plastic extrusion will resume. Upon polymer solidification, a mechanical interlock is formed. This work evaluates several undercut geometries for mechanical performance. This iterative approach to hybrid additive/subtractive manufacturing reduces machining complexity while maintaining structural integrity.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90757
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17676
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2021 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectiterative processingen_US
dc.subjectmechanical interfaceen_US
dc.subjecthybrid additive manufacturingen_US
dc.subjecthybrid subtractive manufacturingen_US
dc.titleMechanical Interface for Iterative Hybrid Additive and Subtractive Manufacturingen_US
dc.typeConference paperen_US
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