Patent ID: 9713845
Date: 2017-07-25
CPC Classifications: B22F,B23B,B30B,C22C

Claim:
1. A method for manufacturing a cutting insert having a through-hole, by using a press tool including a die having a die cavity extending through the die along a first pressing axis, a first punch and a second punch, which are movable toward and away from each other and along said first pressing axis, and a core rod, that is arranged to be inserted into the die cavity in a direction which is non-parallel to the first pressing axis, the method comprising the steps: moving the first and second punches to a die filling position; inserting the core rod into the die cavity; filling the die cavity with powder; moving the first and second punches within the die cavity toward each other along the first pressing axis to compact the powder around the core rod into a cutting insert green body; moving the core rod and the first and second punches to an ejection position to allow removal of the cutting insert green body from the die; and sintering the cutting insert green body, wherein during at least a portion of the compaction step, the core rod is turned a predetermined angle in alternating directions around its longitudinal axis.