Data-Driven Surface Enhancement is a key process stage for improving the functionality, performance, and longevity of a component. In real world production, components often go through multiple stages of surface enhancement before they enter service. Interaction between processes can therefore be overlooked in individual process development.

 

One of ARTC’s unique advantage is the ability to look into multiple surface enhancement processes to achieve desirable surface integrity comprising of roughness, residual stresses and microstructure.We have improved and developed surface enhancement process using extensive data capturing and analysis which allow our members to gain valuable insights to achieve step change improvement for cost optimisation.

 

In research & development, we are actively involved in advancing surface enhancement technologies towards industrie 4.0 and will be focusing on additive manufacturing, automated process, real-time process monitoring, process simulation, data analytics and knowledge based management.

 

 

Intelligent Shot peening


  • Alternative method to Almen intensity verification through the use of sensors
  • Modelling using Computational Fluid Dynamic (CFD) for shot peening nozzle optimisation
  • Shot peening process monitoring, data analysis and performance optimisation
  • Offline programming for nozzle path
  • Automated coverage inspection and analysis

 

Alternative Fatigue Enhancement

 

  • Establish alterative fatigue life enhancement processes such as Deep Cold Rolling (DCR) and Controlled Hammer Peening (CHP) for mitigating sub-surface cracks.
  • Method development for quick production validation of process outputs such as residual stress and surface hardness
  • Post-processing of AM-built parts using techniques such as DCR and CHP to reduce porosity and improve material integrity
  • Process monitoring and prediction through sensor integration and modelling

 

Advanced Surface Finishing


  • Automated polishing for small and complex features
  • Abrasive Flow Machining (AFM) and its design rules for complex additive manufactured component
  • Simulation and modelling using Computational Fluid Dynamic (CFD) for Abrasive Flow Machining process.
  • Robotised media flow finishing for rapid surface finishing of additive manufactured component

Advanced Mechanical Characterisation


  • Residual stress characterisation (non-destructive) and profiling using X-ray diffraction ISO17025:2005 accredited
  • Residual stress profiling using hole drilling techniques (Centre hole drilling and electronic speckle pattern interferometry (ESPI) drilling)
  • Cold work or plastic strain characterisation using electron back-scatter diffraction (EBSD)
  • Mechanical testing (monotonic tensile/compression, fatigue, crack propagation)
  • Fatigue and crack propagation test at elevated temperatures (up to 1000°C)
  • Fractography and microstructural analysis