Abstract
Hot stamping has emerged as a propitious technology in the automotive sector due to its energy-conserving and safety-centric characteristics. However, the conventional approach of using indirect cooling channels has been constrained by thermal resistance, which restricts the scope for improving the cooling efficiency. To overcome this limitation, novel fractal micro channels for direct cooling have been proposed for die in hot stamping. Empirical investigations were conducted by varying the thickness of the blank and the holding time of the press to obtain the average blank temperature. The average blank temperature exhibits an initial rapid decline followed by a gradual decrease, which is attributed to the diminished temperature differential between the cooling channel and water.
Original language | English |
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Journal | International Heat Transfer Conference |
Publication status | Published - 2023 |
Event | 17th International Heat Transfer Conference, IHTC 2023 - Cape Town, South Africa Duration: 2023 Aug 14 → 2023 Aug 18 |
Bibliographical note
Publisher Copyright:© 2023 Begell House Inc.. All rights reserved.
Keywords
- Additive manufacturing
- Boiling heat transfer coefficient
- Fractal microchannel
- Liquid replenishment
- rewetting effect
- Visualization
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes