Accession Number : ADA954263

Title :   Ballistic and Metallurgical Investigation of M1 Helmets Edge-Annealed in a 'Tocco' Induction Heating Unit Prior to Trimming.

Descriptive Note : Memorandum rept.,

Corporate Author : WATERTOWN ARSENAL LABS MA

Personal Author(s) : Hurlich,A.

Report Date : 16 OCT 1944

Pagination or Media Count : 23

Abstract : A metallurgical investigation of the edge annealing of this helmet in a 'Tocco' induction heating unit prior to the trimming operation is feasible both from a procduction viewpoint and for the purpose of the stress relieving the visor, which is a zome very susceptible to age cracking. Ballistical testing of the annealed zone and the transition zone both to possess satisfactory ballistic characteristics.

Descriptors :   ANNEALING, BALLISTICS, EDGES, HEATERS, HELMETS, INDUCTION SYSTEMS, METALLURGY, STRESS RELIEVING, TRANSITIONS, VISORS

Subject Categories : Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE