METHOD AND DEVICE FOR PRODUCING A HARD-METAL PRESSED ARTICLE, AND HARD-METAL PRESSED ARTICLE

摘要

A method for the near-net-shape manufacture of hard-metal pressed articles comprises providing a multi-part die comprising a plurality of lateral mold parts defining lateral surfaces of a cavity for a pressed article. At least one of the plurality of lateral mold parts further defines a portion of an upper side of the cavity. The lateral mold parts are fed. At least two lateral punch parts are fed. At least two of the plurality of lateral mold parts are provided with a guide recess for one of the at least two lateral punch parts. A filling unit is fed above an opening of the cavity, and the cavity is filled with a hard-metal powder. At least one upper mold part is fed, which defines a portion of the upper side of the cavity. The lateral mold parts and the upper mold part are firmly held to form the cavity. The powder is compressed with at least two lateral punch parts. The lateral mold parts, the upper mold part and the punch parts are opened for demolding the pressed article.