Case Study: Die Casting Tools for Bronze
Thesteel QRO 90 was
being used, heat-treated to a
hardness of 48 HRC. This represents a successful but cost-intensive solution.
In a parallel experiment, QRO 90 and Toolox 44 were used for
both the moulds and the cores.
For the cores, Toolox 44 used faster than
QRO 90, but Toolox 44 cut
significantly better than QRO 90 in the mould
itself and held 45,000 pieces until the end of the total series. There were
almost no differences between the shapes of Toolox 44 and the shapes of QRO 90.
Toolox is a more cost-effective variant than QRO 90, since it
is delivered ready-to-heat and a better surface can be achieved by polishing.