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Does Size Matter? - When Spot Welding... The size of loop attachment feet, size of electrode, size of weld nugget and size of heat distribution

M-1 Helmet Shaping Operation I Initial Draw The M-1 helmet was formed in a single pressing operation which yielded a 7-inch deep pot.

M-1 Helmet Shaping Operation II – Trimming Operation The Trimming operation removed the hold down left by the initial drawing operation and prepared the helmet for the spanking operation.

M-1 Helmet Production Breakage X “Nipping It In The Bud” All the necessary investigative and experimental development that should have taken place prior to the mass production of the helmet, had the urgent necessity of the war not warranted bypassing these steps, were conducted at this time in order to overcome the failings of the helmet’s design in combination with imposed criteria and limitations.

M-1 Helmet Production Breakage VII Sharon Steel Corp. & Helmet Steel Defects Decarburization and martensite formations, new problems same results.