International Mold Steel

DCMX

DCMX is a matrix-type cold work tool steel

Overview  

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.

Applications include:

Punches

Dies

Working Tools for Cold Pressing and Cold Forging

Cold Stamping Dies for High Strength Steels

Insert Blocks for Composite Stamping Dies

Blanking Punches and Trimming Edges

Unique Characteristics

  • 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.
  • Isotropic dimensional change works easy geometry control in heat treating.
  • Machinability is improved by free machining additives and finely dispersed carbides.
Die Performance
  • 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.
Physical Properties Comparison of properties among Daido cold work die steels:
Heat Treatment


Optical Micrographs (Annealed)
DCMX shows fine microstructure almost free from coarse carbides


Tempering Hardness


Dimensional Stability


Toughness


Fatigue Properties


Machinability (Annealed)


Wear Resistance (Ohkoshi-test)


TD Coating

TD coating: By courtesy of DOWA Thermo Engineering.

CCT Diagrams

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