Gear Code Extraction from Microstamped Cartridges

dc.contributor.author Grieve, T.
dc.contributor.author Chumbley, L. Scott
dc.contributor.author Kreiser, J.
dc.contributor.author Chumbley, L. Scott
dc.contributor.author Lizotte, T.
dc.contributor.author Ohar, O.
dc.contributor.department Ames Laboratory
dc.contributor.department Materials Science and Engineering
dc.date 2018-02-18T20:53:38.000
dc.date.accessioned 2020-06-30T06:07:50Z
dc.date.available 2020-06-30T06:07:50Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2013
dc.date.issued 2013-01-01
dc.description.abstract <p>The firing pins of three different handguns were modified to stamp a six-digit alpha-numeric code and a circumferential digital code known as a gear code into the primer of a cartridge when fired. In this paper the transfer of gear codes from firing pin to primers was evaluated using scanning electron microscopy (SEM). Only those cartridges that received poor clarity marks optically as regarding the alpha-numeric code were chosen for evaluation in the SEM. Photo editing software was employed to clearly outline and decipher the gear code around the circumference of the microstamped primer. Results show that the better imaging of the SEM allows more of the alpha-numeric identifiers to be distinguished as well as more of the gear code structure, however complete recognition is still not possible in all cases.</p>
dc.description.comments <p>This article is published as T. Grieve, L.S. Chumbley, J. Kreiser, T. Lizotte, O. Ohar, “Gear Code Extraction from Microstamped Cartridges,” <em>AFTE Journal</em> (Winter 2013) 45, pp. 64-74. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/mse_pubs/265/
dc.identifier.articleid 1267
dc.identifier.contextkey 10604056
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath mse_pubs/265
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/55601
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/mse_pubs/265/0-2013_Chumbley_GearCode_Permission.pdf|||Fri Jan 14 23:03:16 UTC 2022
dc.source.bitstream archive/lib.dr.iastate.edu/mse_pubs/265/2013_Chumbley_GearCode.pdf|||Fri Jan 14 23:03:18 UTC 2022
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords gear code
dc.subject.keywords microstamping
dc.subject.keywords scanning electron microscope
dc.title Gear Code Extraction from Microstamped Cartridges
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 20c4179a-bb45-4bf5-aa42-9495a2a4e81b
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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