Gear Code Extraction from Microstamped Cartridges Grieve, T. Chumbley, L. Scott Kreiser, J. Chumbley, L. Scott Lizotte, T. Ohar, O.
dc.contributor.department Ames Laboratory
dc.contributor.department Materials Science and Engineering 2018-02-18T20:53:38.000 2020-06-30T06:07:50Z 2020-06-30T06:07:50Z Tue Jan 01 00:00:00 UTC 2013 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/
dc.identifier.articleid 1267
dc.identifier.contextkey 10604056
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath mse_pubs/265
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 23:03:16 UTC 2022
dc.source.bitstream archive/|||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
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