Patent ID: 8636933

Claim:
Method for producing a pressed powder element, wherein the method comprises the following steps: adjusting a volume of a compression room ( 11 ) formed between a die ( 3 ) moveably disposed in a compression chamber ( 2 ) and side walls of the compression chamber ( 2 ), wherein the volume of the compression room ( 11 , 11 a , 11 b ) is adjustable by the position of the die ( 3 ) in the compression chamber ( 2 ); creating a negative pressure in the compression room ( 11 ) for sucking loose powder from a storage reservoir into the compression room ( 11 ), wherein the adjustable volume of the compression room ( 11 ) is used for dosing the loose powder which is sucked from the storage reservoir into the compression room ( 11 ); pre-pressing of loose powder sucked into the compression room ( 11 a ) to a first powder blank ( 14 ); pre-pressing of loose powder sucked into the compression room ( 11 b ) to a second powder blank ( 15 ); and pressing together the at least two pre-pressed powder blanks ( 14 , 15 ) to form a pressed powder element.