The future of metalworking could become a lot cooler – literally. Researchers from Ohio State University have developed a new method of quenching metal that uses ice instead of oil or water. Quenching is the process of rapidly cooling metal, usually in water or oil, for the purpose of hardening it. By using ice, the team has found that metals can be hardened without the risk of cracking or warping. The ice-quenching method is also more efficient and cost-effective, making it a viable option for metalworking in the future.

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source: Phys.org