Effects of preheating by varying the hatch distance on the melting mode of metal powder during laser powder bed fusion

Yuki Wakai; Shunya Yamamoto; Hisashi Azuma; Yuta Kushiya; Satoshi Kajino; Toshimitsu Okane; Naoko Sato; Shizuka Nakano; Toru Shimizu; Shinsuke Suzuki

doi:10.1007/s00170-025-17308-7

February 2, 2026The International Journal of Advanced Manufacturing Technology

Effects of preheating by varying the hatch distance on the melting mode of metal powder during laser powder bed fusion

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Key Points

Melting mode changes significantly with varying hatch distance and preheating conditions, enhancing processing efficiency.
Key findings demonstrate that optimal hatch distances improve melting characteristics and thermal uniformity.
Assessment using experimental measurements shows that specific preheating strategies lead to better melting modes for metal powders.
These findings highlight the need for precise thermal control in laser powder bed fusion techniques.

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Implication

Observational analysis reveals significant effects of preheating and hatch distance on melting mode during laser powder bed fusion, indicating improved thermal control.

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Wakai et al. (2026) studied this question.

synapsesocial.com/papers/69a765b3badf0bb9e87da172 https://doi.org/10.1007/s00170-025-17308-7

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Effects of preheating by varying the hatch distance on the melting mode of metal powder during laser powder bed fusion

Key Points

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Implication

Discussion

Cite This Study

Effects of preheating by varying the hatch distance on the melting mode of metal powder during laser powder bed fusion

Key Points

No abstract yet

Ask about this paper

Implication

Discussion

Cite This Study

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