Abstract

AbstractThe development of an automatic die wall lubrication system for use during powder compaction of ferrous based materials is described. The technique, employing EP oil fed to the die wall interface under slight air pressure and augmented by the action of the toolset, appears to work very well. Following comprehensive laboratory scale development of the technique, involving particularly lubricant selection, satisfactory works trials have been implemented. Five thousand simple preforms for subsequent powder forging and 2000 green compacts for a commercial sintered component of some geometric complexity have been produced in a modified production toolset. PM/0450

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