About this Abstract |
Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
Presentation Title |
Numerical Investigation of L-PBF Processing of High Speed Steels to Produce Crack Free Parts |
Author(s) |
Pravin Kumar, Akash Bhattacharjee, Himanshu Nirgudkar, Surya Ardham, Pramod Zagade, BP Gautham, Gerald Tennyson |
On-Site Speaker (Planned) |
Pravin Kumar |
Abstract Scope |
During L-PBF processing of high-speed steel (HSS), formation of hard and brittle phases lead to cracking of parts under the influence of process induced stresses. Producing crack free HSS components, requires a detailed understanding of interaction among composition, process parameters, and resultant microstructure. In this study, a multiscale framework to investigate L-PBF processing of M2 tool steel is developed. Microstructure based material constitutive model are developed using microstructure statistics predicted by theoretical non-equilibrium solidification models for varying cooling rates, and composition. Part scale simulations are performed to estimate residual stresses and distortion by using the microstructure aware material-constitutive behavior. Numerical trials are conducted to study the influence of variation in alloy composition of M2 tool steel, process parameters on crack susceptibility and final properties. Potential of this in-silico approach in reducing process design space of high speed steels is highlighted. |
Proceedings Inclusion? |
Undecided |