Gun barrel refurbishing using a shrink-fitted autofrettaged liner

J. Perry, M. Perl

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


During the firing of guns, the barrel undergoes two major damaging processes: wear of its inner surface, and internal cracking. Barrel's are condemned based either on the increase of their internal diameter due to wear, or the severity of their internal cracking. The cost of replacing such a damaged gun barrel runs in the tenth of thousand of US$. Therefore, cost effective methods are sought for restoring such gun barrels. In the present analysis a new method is proposed for refurbishing vintage gun barrels by machining their inner damaged layer and replacing it by an intact, autofrettaged, shrink-fit liner that will restore the barrel to its original performance. The preliminary results demonstrate the ability of this process to mend such barrels, bringing them back to their initial Safe Maximum Pressure (SMP) and their intact conditions, rather than condemning them. Furthermore, such an alternative seems to be cost effective.

Original languageEnglish
Title of host publicationHigh-Pressure Technology; Rudy Scavuzzo Student Paper Competition and 23rd Annual Student Paper Competition; ASME NDE Division
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791856987
StatePublished - 1 Jan 2015
EventASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States
Duration: 19 Jul 201523 Jul 2015

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
ISSN (Print)0277-027X


ConferenceASME 2015 Pressure Vessels and Piping Conference, PVP 2015
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Mechanical Engineering


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