Accession Number : AD0756877

Title :   Evaluation of a Light-Load, Direct-Reading Hardness Tester.

Descriptive Note : Test rept.,

Corporate Author : FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s) : Shebest,Walter A. ; Quittman,William H.

Report Date : DEC 1972

Pagination or Media Count : 38

Abstract : A study is made of a new light-load, direct-reading indentation type hardness tester and its application to measuring the hardness of 5.56mm cartridge cases at standard sidewall positions. The relationship is shown between numbers obtained with the new equipment and those from the Vickers hardness tests, and this correlation is used as a basis for comparing test data. Results show that the new tester can duplicate Vickers hardness gradient patterns presently used to measure and control variations produced by a particular manufacturing process. (Author)

Descriptors :   (*TEST EQUIPMENT, HARDNESS), (*CARTRIDGE CASES, NONDESTRUCTIVE TESTING), QUALITY CONTROL, SMALL ARMS AMMUNITION

Subject Categories : Test Facilities, Equipment and Methods
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE