| 摘要 |
A device for manufacturing a cutting insert green body (13) by compacting a powder, said device comprising; a die (18, 40) that comprises an upper die part (19, 41) and a lower die part (20) that are separable from each other, and an upper punch (22) and a lower punch (23), at least one of which is moveable along a pressing axis (x) in relation to the die, wherein the upper and lower die parts (19, 20), when joined, contribute to defining a die cavity (25) that has an inner peripheral surface that defines the shape of the outer peripheral surface of the green body (13) to be formed by said compaction, and wherein said inner peripheral surface of the die cavity (25) is designed such that the green body (13) obtains a barrel-shape having a parting line (14) on the outer peripheral surface thereof which at least partially is non-perpendicular to said pressing axis (x), and wherein at least one of the lower die part (20) and the upper die part (19) has a pressing bore extending from said cavity, for the lower punch (23) and upper punch (22) respectively to be received in. The lower die part (20) has an upper inner edge (28) that extends along a line defining the parting line (14) of the green body (13), the upper die part (19) has a lower inner edge (29) that extends along a line defining the parting line (14) of the green body (13), the upper die part (19) has an upper surface (30) that, at least in one direction, extends rectilinearly, and the upper die part (19) has an upper opening (31) in said upper surface (30), through which the upper punch (22) is enabled to be forwarded to said cavity. |
