Abstract
Laser Directed Energy Deposition (LDED) utilizing wire (w) feedstock is an industrially attractive manufacturing route to add intricate, near-net shaped deposits on large aeroengine components. Haynes 282 (H282) is a Nickel-based superalloy used in the hotter sections (>800 °C) of an aeroengine. The minimal defects requirement for flying parts from aerospace industry presents two major challenges for commercialization of LDED-w processed H282 components. The first challenge is that the LDED-w processed H282 is prone to occasional hot cracking, which compromises the performance requirement. The second challenge relates to lack of mature non-destructive technique (NDT) for detecting fine (~200µm) flaws in thicker and complex geometry of LDED-w processed H282 builds. The overall goal of SaMurAi is to identify an LDED-w processing window for H282 deposition that yields minimal defects, and mature NDT methods for deploying them in-process and post-deposition to effectively examine the deposits layer-by-layer at high temperatures and post manufacturing of thicker, complex shaped LDED-w H282 components. An inter-disciplinary approach comprising Experiment (processing, NDT, characterization)-Modelling-Machine Learning (ML) will be used for LDED-w processing of high-integrity and high-performance H-282-based aeroengine component (hot turbine casings).
Consortium

COORDINATOR

  GKN Aerospace Sweden AB

Satyapal Mahade

PARTNERS

GKN Aerospace Sweden AB

Hogskolan Vast (HV) – University West

Aerobase innovations AB

Strathclyde University

PEAK NDT Limited

Ether Nde Limited