| 摘要 |
<p>A sheet metal blanking die assembly, comprising a lower part, an upper part and guide columns. The die assembly upper part and lower part present flat parallel mutually opposing horizontal portions. The lower flat portion is arranged to receive the sheet metal, the upper flat portion presenting a plurality of punches. On the flat lower portion, blanking recesses are present to receive the respective punches and at least one detachment die, below which a brake is present, said brake presenting a through cavity positioned coaxial to that of the detachment die. The brake presents a plurality of contact zones arranged to brake the fall of the individual laminations and possibly to enable the formation of a lamination pack. Means are provided to cool and/or to lubricate just the contact zones between the laminations or the lamination pack and the brake.</p> |
