Tooling Components Used in Stator Core Lamination Dies
Stator core laminations are usually produced with high-speed progressive dies or compound dies. These dies operate at very high strokes per minute, which requires reliable and long-lasting precision components.
1. Cutting Components
- Punches – made of high-speed steels (M2, ASP23, etc.), with vacuum heat treatment and surface coating (TiN, TiCN) for extended life.
- Die Inserts – matching the punches with high wear resistance and hardness.
- Punch Retainers – ensuring secure and accurate punch positioning.
- Stripper Plates / Pressure Plates – preventing sheet sticking to the punch and maintaining smooth part release.
2. Guiding & Positioning
- Guide Posts & Guide Bushings – guaranteeing precise alignment between upper and lower die during high-speed stamping.
- Dowel Pins – for accurate assembly and repeatable positioning of die components.
- Pilot Pins – correcting strip position during progressive feeding.
3. Pressing & Stripping Elements
- Nitrogen Gas Springs or Coil Springs – providing uniform pressure and stable stripping force.
- Pressure Pads – securing silicon steel sheets and reducing burr formation.
4. Stacking & Material Handling
- Lamination Stacking Pins – ensuring consistent stacking of stator laminations.
- Vacuum Slug Retention Components – preventing slug rebound and tool jamming during high-speed operation.
5. Wear & Protection Parts
- Wear Plates – installed in sliding areas to reduce friction and extend tool life.
- Stop Blocks – protecting the die from over-travel.
- Ejector Pins – pushing out slugs and scrap material reliably.
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