Selective Laser Melting of AISI H10 (32CrMoV12-28) with substrate preheating for crack prevention

In this study, the processability of the hot work tool steel AISI H10 was investigated using selective laser melting (SLM). The tool steel was fabricated at different process parameters using a substrate plate heating system to prevent cracking. The microstructure was investigated for defects such a...

Full description

Saved in:
Bibliographic Details
Published in:Procedia computer science 2022, Vol.200, p.1274-1281
Main Authors: Wild, Norbert, Giedenbacher, Jochen, Huskic, Aziz, Zenisek, Jan, Wolfartsberger, Josef
Format: Article
Language:English
Subjects:
heat treatment
hot work tool steel H10
microstructure
Selective Laser Melting
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, the processability of the hot work tool steel AISI H10 was investigated using selective laser melting (SLM). The tool steel was fabricated at different process parameters using a substrate plate heating system to prevent cracking. The microstructure was investigated for defects such as cracks, pores, and lack of fusion. Microscopic investigations showed a fine cellular dendritic microstructure in the as-built condition. Due to the high cooling rates in the SLM process and the resulting residual stresses, cracks were found despite substrate preheating. For this reason, the preheating temperature was adapted. Process parameter optimization including the substrate preheating temperature show crack-free tool steel samples.
ISSN:1877-0509
1877-0509
DOI:10.1016/j.procs.2022.01.328