ORCID

0000-0002-7561-9858 (Rechowicz)

Document Type

Article

Publication Date

2025

DOI

10.26628/simp.wtr.v97.1195.207-213

Publication Title

Welding Technology Review

Volume

97

Pages

207-213

Abstract

The foundry industry is seeking an ecological alternative to synthetic molding resins. This study evaluates the technological properties of core sands bonded with biodegradable polylactide (PLA). Cores prepared on a 2% quartz sand matrix were subjected to casting processes using two alloys with extremely different pouring temperatures: gray cast iron (approx. 1200 °C) and AK11 silumin (approx. 710 °C). The research methodology included macroscopic assessment, dimensional analysis using 3D scanning (GOM Inspect), and qualitative knock-out assessment supported by numerical temperature field simulation. The results showed that the high crystallization temperature of cast iron leads to complete thermal degradation of the binder, ensuring excellent knock-out properties.

Rights

© 2025 The Authors.

This work is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) License.

Original Publication Citation

Soroczyński, A., & Rechowicz, K. (2025). PLA polymer binder in core production-influence on final casting dimensions. Welding Technology Review, 97, 207-213. https://doi.org/10.26628/simp.wtr.v97.1195.207-213

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