Einfluss der Tiefkühlbehandlung auf die Maßhaltigkeit von Stahlbauteilen |
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Authors: | Cord Henrik Surberg Paul Stratton Klaus Lingenhöle |
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Affiliation: | 1. V-Research GmbH, Industrielle Forschung und Entwicklung, Dornbirn, Austria 2. Linde Gas AG, Unterschleissheim, Germany 3. Lingenh?le Technologie GmbH, Feldkirch, Austria
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Abstract: | For a tool steel AISI D2 (1.2379) and a case hardening steel (1.7131) the opportunity of reduction processing time and improvements of final properties and dimensional stability using deep cold treatments were investigated. Hardened blocks were subjected to various combinations of single and multiple tempering steps (520 °C and 540 °C for 1.2379 and 180 °C for 1.7131 respectively) and short- as well as long-time deep cold treatments (-90 °C, -120 °C and -150 °C). The greatest dimensional stability was achieved by deep cold treatments at the lowest temperature (-150 °C) and was independent of the deep cold treatment time. |
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