Hårdmetall för verktyg för kallbearbetning av dryckesburkar, samt användning av sådan hårdmetall i verktyg för kallbearbetning

摘要

The present invention relates to a cemented carbide tool for the deep drawing operations, especially as the ironing dies, of the manufacturing of aluminium or steel beverage cans. The cemented carbide comprises WC with an ultra fine grain size and 5-10 weight-% Co, and including grain growth inhibitors (V and/or Cr) and with a specific relation between HV30 and cobalt content.