Selective Laser Melting and Topology-Optimised Cellular Structures for Advanced Aero-Engine Performance

Selective Laser Melting and Topology Optimization of Aero-Engine Parts for Better Heat Dissipation, Vibration Control, and Lightweight

Objective

• Design and topology optimization of cellular structures., SLM fabrication of the designed cellular structure using Ti6Al4V and Inconel 718 as base material., Investigation of microstructural analysis, heat treatment, and surface modification of SLM fabricated structures., Experimental and finite element analysis of the mechanical and thermal properties of the designed cellular structures.

Description

• High thermal conductivity materials like aluminum and steel have low strength whereas high strength materials like titanium alloys and Inconel alloys have low thermal conductivity. Aero-engine components require a material with a high strength to weight ratio, high thermal conductivity, high vibration absorption and ability to maintain mechanical properties at high temperatures. Finding all such properties in any material can be very challenging., Incorporation of cellular structures in the aero-engine parts. Due to the high surface area to volume ratio, they have high vibration absorption and heat dissipation properties. Their porous texture also reduces the material usage and cost of the components. Furthermore, high heat dissipation can also reduce the extra cost needed to install heat exchangers in the aero-engines.

Impact

• Improved performance of aero-engines., Overall advancement of additive manufacturing in India.