DCMX is a matrix-type cold work tool steel: only fine carbides are distributed in matrix due to optimum alloy design and production process.
DCMX shows high performance in service and ease in mold making as well.
- High hardness such as 62 HRC is available by high temperature tempering with good dimensional stability, resulting in high wear resistance.
- High toughness helps to prevent cracking and chipping.
Ease in Die Making
- Isotropic dimensional change works easy geometry control in heat treating.
- Machinability is improved by free machining additives and finely dispersed carbides.
Punches, dies and working tools for cold pressing and cold forging, especially for:
• Cold stamping dies for high strength steels
Where galling and peel off of coated layer, TD and CVD, are main failure
• Insert blocks for composite stamping dies
Where good dimensional stability is required in dies alignment
• Blanking punches and trimming edges
Where main failures are cracking and chipping
Optical Micrographs (Annealed)
DCMX shows fine microstructure almost free from coarse carbides
Wear Resistance (Ohkoshi-test)
TD coating: By courtesy of DOWA Thermo Engineering.
Comparison of properties among Daido cold work die steels:
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