Accession Number : AD0310006

Title :   BALLISTIC PERFORMANCE OF LIGHT ARMOR MANUFACTURED BY THE 'PLURAMELT' PROCESS.

Corporate Author : NAVAL PROVING GROUND DAHLGREN VA

Report Date : 02 MAR 1943

Pagination or Media Count : 22

Abstract : The analysis of light armor performance indicates that: Plates manufactured by E. C. Atkins and Company and U. S. Spring and Bumper Company from Pluramelt have approximately the same ballistic quality in the present time. Light armor produced from plates manufactured by the Pluramelt process show a greater variation in ballistic properties than plates case carburized and hardened. Total failures in 1942 of 1/2 in. acceptance test plates of Pluramelt amounted to 164 out of 928 (17.7%) as compared to 17 carburized plate out of 723 (2.4%). Higher limits were obtained at times with Pluramelt plates and they generally showed excellent shock resistance. Results of experimental work indicate that Pluramelt plates must have a high surface hardness to pass the ballistic test. Plates have low surface hardness because of incorrect heat treatment or of surface decarburization will have low resistance to penetration. No correlation could be made with other physical or chemical properties. (Author)

Descriptors :   *ARMOR, *PROJECTILES, *BALLISTICS, .

Distribution Statement : APPROVED FOR PUBLIC RELEASE