InssTek

Engineering Material Properties Without Boundaries

Functionally Graded Materials (FGMs) are materials in which the composition and properties are gradually varied within a single component, combining the advantages of different materials into one structure.
InssTek’s DED technology enables the fabrication of functionally graded materials through precise multi-material control, opening new possibilities for material design that are difficult to achieve with conventional manufacturing methods.

Why Functionally Graded Materials?

Even within a single component, different regions may require different properties. FGMs optimize overall component performance by gradually varying the material composition to integrate properties such as heat resistance, toughness, and wear resistance within a single component.

• Conventional Joining
  • Sharp Interface
  • Stress Concentration
• Functionally Graded Material
  • Smooth Transition
  • Reduced Material Discontinuity

How Does InssTek Implement FGMs?

Precise Material Control with DED

InssTek's DMT® technology precisely controls the feed ratio of multiple metal powders during deposition, enabling smooth material transitions layer by layer. This process enables precise and repeatable functional gradient structures across a wide range of material combinations.

Core Technology

• DMT® Technology
• CVM Technology
• AM-CAM SW Technology
• DMT® Process Control

Live Alloying with Pure Element Powder

Example of FGM Fabrication

Case Study of Functionally Graded Materials

Functionally graded structures fabricated using InssTek’s DED technology achieve continuous material transitions and gradual changes in composition. The precision and repeatability of the process can be verified through microstructural and mechanical property analysis of the fabricated components.

Gradual Composition of Two Materials

Functionally Graded Materials (FGMs) technology has been applied to manufacture a full-scale rocket nozzle.

Representative Material Combinations

• Rocket Nozzle

  SS316L + Al-Bronze

• Multi-Material

  Al-Bronze + IN718

• 

  SUS316L + Al-Bronze

Applications of Functionally Graded Materials

• Aerospace

  Rocket Nozzles, Turbine Components

• Energy

  High-Temperature Components

• Tooling

  Dies, Molds & Wear-Resistant Tools

• Research
  &
  Material Development

  Advanced Alloy & Material Research