Mould, method for producing a green compact and use of the mould

A mold for producing a green compact using powder metallurgy processes, the mold comprising:

• an upper punch and a lower punch being movable along a common press axis;
• a die body having a charging chute formed therein for receiving powder material, said die body having an upper die region in which said upper punch is movably guided along the common press axis in said charging chute and a lower die region in which said lower punch is movably guided along the common press axis in said charging chute;
• and
• at least two cross slides which realize a forming region which determines a lateral outside contour of the green compact, and disposed on said die body so as to be displaceable in a direction which deviates from the common press axis, said at least two cross slides only move into contact with one another when said at least two cross slides are disposed in their respective end position and a cavity, for determining a shape of a pressed green compact, is realized in a closed state of the mold by said lower and upper punches which are disposed in end positions and by said at least two cross slides which are disposed in the end positions, said at least two cross slides realize the forming region which determines an entire lateral outside contour of the green compact.

A method for producing a powder-metallurgy component, which comprises the steps of:

• providing a mold for producing a green compact, the mold comprising:
• an upper punch and a lower punch being movable along a common press axis;
• a die body having a charging chute formed therein for receiving powder material, the die body having an upper die region in which the upper punch is movably guided along the common press axis in the charging chute and a lower die region in which the lower punch is movably guided along the common press axis in the charging chute;
• and
• at least two cross slides which realize a forming region which determines a lateral outside contour of the green compact, and disposed on the die body so as to be displaceable in a direction which deviates from the common press axis, the at least two cross slides only move into contact with one another when the at least two cross slides are disposed in their respective end position and a cavity, for determining a shape of a pressed green compact, is realized in a closed state of the mold by the lower and upper punches which are disposed in end positions and by the at least two cross slides which are disposed in the end positions, the at least two cross slides realize the forming region which determines an entire lateral outside contour of the green compact;
• pressing the green compact out of the powder material using the mold;
• and
• sintering the green compact to form a sintered component.

A production method, which comprises the steps of:

• providing a mold for producing the green compact, the mold comprising:
• an upper punch and a lower punch being movable along a common press axis;
• a die body having a charging chute formed therein for receiving powder material, the die body having an upper die region in which the upper punch is movably guided along the common press axis in the charging chute and a lower die region in which the lower punch is movably guided along the common press axis in the charging chute;
• and
• at least two cross slides which realize a forming region which determines a lateral outside contour of the green compact, and disposed on the die body so as to be displaceable in a direction which deviates from the common press axis, the at least two cross slides only move into contact with one another when the at least two cross slides are disposed in a respective end position and a cavity, for determining a shape of a pressed green compact, is realized in a closed state of the mold by the lower and upper punches which are disposed in end positions and by the at least two cross slides which are disposed in the end positions, the at least two cross slides realize the forming region which determines an entire lateral outside contour of the green compact;
• and
• producing a cutting insert for machining a work piece by means of powder metallurgy and the mold.