The AM Dowel – A Novel Insert for the Integration of Threads into Additive Manufactured Polymer Components
Abstract
Within this paper, an insert for the integration of female threads into additive manufactured (AM) polymer parts is presented. The fastener consists of three components: a metallic threaded insert, an AM optimized female cutout and an AM polymer clip. By exploiting AM’s geometrical complexity, the design has several advantages compared to conventional solutions including a fast and re-versible assembly process without the use of specialized tools. The insert’s pull-out strength was evaluated on a tensile testing machine. The results showed that the fastener can withstand loads of up to 5600 N (for 3/8”-16 UNC thread size). Within a case study, the insert is integrated into a Selective Laser Sintered (SLS) top handle for videography applications. The fasteners were fully functional and endured extensive real-life operation. The results of the experimental tests and case study demonstrate that the novel insert design creates new potentials for AM products, as additional applications for polymer-based AM processes are ena-bled. Customization and flexibility are established within the hardware part as de-signers can choose their required insert from ready-to-use building blocks & even change it throughout use as the connection is standardized and reversible. Show more
Publication status
publishedExternal links
Book title
Industrializing Additive ManufacturingPages / Article No.
Publisher
SpringerEvent
Subject
Additive manufacturing; Threaded insert; Design for AM; Hybrid designOrganisational unit
03943 - Meboldt, Mirko / Meboldt, Mirko
Related publications and datasets
Is part of: http://hdl.handle.net/20.500.11850/450196
Notes
Due to the Coronavirus (COVID-19) the conference was held as a hybrid conference with participants on site and remote.More
Show all metadata
ETH Bibliography
yes
Altmetrics