Sustainable & digital engineering Advanced materials

Process for producing complex parts using SPS sintering

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Sintering manufacturing methods for complex-shaped parts are not fully satisfactory: loss of material, lengthy process, imperfect material performance, etc. SPS (Spark Plasma Sintering) is a rapid densification technique used to produce high-performance parts. 
Combining SPS with a process for producing complex shapes is now possible.

COMPETITIVE ADVANTAGES

  • Complex geometry
  • Homogeneity of density and microstructure
  • "Near net shape"
  • Reduced material waste & Manufacturing costs
  • Simplification & Manufacturing speed
  • Parts with high-performance mechanical properties

APPLICATIONS

  •  Turbocharger turbine
  • Turbine blade
  • Piston pin
  • Valve
  • Bearing ball
  • Watch case

INTELLECTUAL PROPERTY

  • Patent

DEVELOPMENT STAGE

Laboratory validation of the technology

LABORATORY

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  • CIRIMAT

  • Équipe Nanocomposites et Nanotubes de Carbone

Description

  • Process for manufacturing complex parts to near net shape:
    • Use of a sacrificial material (particularly of a different nature and less expensive)
    • Materialisation of moving separation interfaces
    • Evolution of the interface during densification: accompanying the shaping of the part towards its final dimensions
  • One-step manufacturing process
  • Manufacture of several parts in a single die
  • Rapid production of high-performance parts
Photo offre mobilint

Technical specifications

  • End part material: Unrestricted choice (metals and alloys, ceramics, etc.)
  • Interface material:
    • Non-sinterable under processing conditions
    • Non-reactive with respect to the materials to be sintered
  • Sacrificial material:
    • Requires sintering parameters close to those of the final material
    • Non-limiting shaping method (conventional sintering, additive manufacturing, SPS, etc.)