In-situ property measurements on laser-drawn strands of SL 5170 epoxy and SL 5149 acrylate
Material behavior plays a significant role in the mechanics leading to internal stresses and, potentially, to distortion (curling) of parts as they are built by stereolithography processes that utilize photocuring resins. A study is underway to generate material properties that can be used to develop phenomenological material models of epoxy and acrylate resins. Strand tests are performed in situ in a 3D System`s SLA-250 machine; strands are drawn by either single or multiple exposures of the resin to a laser beam. Linear shrinkage, cross-sectional areas, cure shrinkage forces and stress-strain data are presented. Also, the curl in cantilever beam specimens, built with different draw patterns, are compared.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 100151
- Report Number(s):
- SAND-95-0892C; CONF-9508149-1; ON: DE95016086; TRN: 95:006605
- Resource Relation:
- Conference: 6. solid freeform fabrication symposium, Austin, TX (United States), 7-9 Aug 1995; Other Information: PBD: 1995
- Country of Publication:
- United States
- Language:
- English
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