Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Edward C. De Meter"'
Publikováno v:
Crystals, Vol 12, Iss 3, p 374 (2022)
The finishing of additive manufactured (AM) components is crucial for endowing them with fatigue resistance. Unfortunately, current AM processes naturally promote anisotropic surface characteristics that make it challenging to optimize finishing proc
Externí odkaz:
https://doaj.org/article/d88c2c6c57dc4bd5b69f37022361c81a
Publikováno v:
Procedia Manufacturing. 34:463-474
The Laser- Powder Bed Fusion (L-PBF) process is currently used to print geometrically complex, thin walled, metallic parts. Critical features on these parts must be machined. Unfortunately, the parts are difficult to fixture without clamping distorti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d414a17a3ca84d9b22b6f6ad8ddd0d6
https://doi.org/10.1016/j.promfg.2019.06.199
https://doi.org/10.1016/j.promfg.2019.06.199
Autor:
Varad Tripathi, Timothy W. Simpson, Andrew Armstrong, Xi Gong, Guha Manogharan, Edward C. De Meter
Publikováno v:
Journal of Manufacturing Processes. 34:740-749
There is significant interest in using laser powder bed fusion (L-PBF) to print metallic parts from super-alloys such as Inconel 718. L-PBF frequently requires the printing of support structures for overhanging regions of the solid part in order to m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::798aec6c9d1e502a6f95ddedc172c61c
https://doi.org/10.1016/j.jmapro.2018.03.046
https://doi.org/10.1016/j.jmapro.2018.03.046
Experimental sampling of the Z-axis error and laser positioning error of an EOSINT M280 DMLS machine
Publikováno v:
Additive Manufacturing. 21:501-516
The Z axis table motion errors and laser positioning errors an EOSINT M280 were evaluated using a set of standard metrology techniques and instrumentation. While the linear displacement error of the table is quite low (4.5 μm), straightness, yaw and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::735112c3da3a438e8c057a3f9440d2fd
https://doi.org/10.1016/j.addma.2018.03.029
https://doi.org/10.1016/j.addma.2018.03.029
Publikováno v:
Computational Materials Science. 199:110716
Stiffness prediction for additively manufactured (AM) lattices is necessary for lightweight components design. For a given lattice structure, the Gibson and Ashby (GA) model can predict relative stiffness as a function of its relative density. Howeve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef7ca3f5f02e57d2882d646a3576bb13
https://doi.org/10.1016/j.commatsci.2021.110716
https://doi.org/10.1016/j.commatsci.2021.110716
Publikováno v:
Procedia Manufacturing. 26:1398-1410
Photo-Activated Adhesive Work-holding (PAAW) is a new fixture technology used to hold complex parts for tight tolerance manufacturing processes. Adhesive shrinkage during polymerization leads to a finite degree of workpiece distortion that may limit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::450507926cb81f2d54db334f0d178ad3
https://doi.org/10.1016/j.promfg.2018.07.108
https://doi.org/10.1016/j.promfg.2018.07.108
Publikováno v:
Journal of Manufacturing Science and Engineering. 142
ASME Y 14.5M-2009 provides three distinct variants of composite position tolerance constraints to exercise control over the position characteristics of patterns of features of sizes such as holes. The practical implementation of this class of positio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::915914f97e71f0c7dee9bd10db9b7ce0
https://doi.org/10.1115/1.4045720
https://doi.org/10.1115/1.4045720
Publikováno v:
Procedia Manufacturing. 10:147-158
Fractional thickness reduction is a critical measure of localized distortion for a part held within a PAAW fixture. The maximum fractional thickness that may result is the fractional volumetric shrinkage of the adhesive. However, this will only occur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee6767a718bf9741063bbe2b29f8e82b
https://doi.org/10.1016/j.promfg.2017.07.041
https://doi.org/10.1016/j.promfg.2017.07.041
Publikováno v:
Journal of Manufacturing Processes. 16:190-199
A pulsed, laser process has been developed to reduce the permanent strength of photo-activated adhesive joints prior to work-piece de-bonding. The objective of this investigation was to gain insight into the relationships between carbon black content
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::211c19a388e60ddbd7a9197201af74b8
https://doi.org/10.1016/j.jmapro.2013.11.003
https://doi.org/10.1016/j.jmapro.2013.11.003
Autor:
Edward C. De Meter, Kristopher Doll
Publikováno v:
Journal of Manufacturing Science and Engineering. 138
As a workpiece is bonded to a photo-activated adhesive workholding (PAAW) fixture, the adhesive shrinks during photopolymerization. This leads to the buildup of residual stresses that may distort the workpiece or reduce the external load capacity of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a1272eadf42ee487fb8cd2c23d2fbff
https://doi.org/10.1115/1.4033527
https://doi.org/10.1115/1.4033527