Method and arrangement for manufacturing a cutting insert
AssigneeSandvik Intellectual Property AB
InventorHjalmar STAF
Life of this patent
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Abstract
A method for manufacturing a cutting insert having a through-hole that extends in a direction that is non-parallel to the main pressing direction. The method includes the steps of moving first and second punches within a die cavity toward each other along a first pressing axis and compacting a powder around a core rod into a cutting insert green body, wherein, during at least a portion of the compaction step, the core rod is turned a predetermined angle in alternating direction around its longitudinal axis.
Claims20
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An arrangement for manufacturing a cutting insert having a through-hole, the arrangement comprising:
- 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 arranged to be inserted into the die cavity in a direction which is non-parallel to the first pressing axis;
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- a driving device arranged to turn the core rod a predetermined angle in alternating directions around its longitudinal axis.
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Dependencies are inferred from the claim text.