Design and production of a novel sand materials strength testing machine for foundry applications

Ugochukwu Chibuzoh Nwaogu, K. S. Hansen, Niels Skat Tiedje

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In the foundry, existing strength testing machines are used to measure only the maximum fracture strength of mould and core materials. With traditionally used methods, the loading history to ascertain deformation of the material is not available. In this paper, a novel moulding material strength testing machine was designed and built for both green sand and chemically-bonded sand materials. This machine measures and presents the loading response as a force-displacement profile from which the mechanical properties of the moulding materials can be deduced. The system was interfaced to a computer with a commercial PC based-control and data acquisition software. The testing conditions and operations are specified in the user interface and the data acquisition is made according to specifications. The force and displacements were calibrated to ensure consistency and reliability of the measurement data. The force was calibrated using an Amsler Hydraulic Press while the displacements were calibrated with and without loading using a displacement calibrator (Heidenhain Digitaler). The calibration results showed that the data obtained are stable and reliable and the machine can be used for the measurement of the strength of chemically-bonded sand materials.
Original languageEnglish
JournalInternational Foundry Research
Volume64
Issue number2
ISSN0046-5933
Publication statusPublished - 2012

Cite this

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title = "Design and production of a novel sand materials strength testing machine for foundry applications",
abstract = "In the foundry, existing strength testing machines are used to measure only the maximum fracture strength of mould and core materials. With traditionally used methods, the loading history to ascertain deformation of the material is not available. In this paper, a novel moulding material strength testing machine was designed and built for both green sand and chemically-bonded sand materials. This machine measures and presents the loading response as a force-displacement profile from which the mechanical properties of the moulding materials can be deduced. The system was interfaced to a computer with a commercial PC based-control and data acquisition software. The testing conditions and operations are specified in the user interface and the data acquisition is made according to specifications. The force and displacements were calibrated to ensure consistency and reliability of the measurement data. The force was calibrated using an Amsler Hydraulic Press while the displacements were calibrated with and without loading using a displacement calibrator (Heidenhain Digitaler). The calibration results showed that the data obtained are stable and reliable and the machine can be used for the measurement of the strength of chemically-bonded sand materials.",
author = "Nwaogu, {Ugochukwu Chibuzoh} and Hansen, {K. S.} and Tiedje, {Niels Skat}",
year = "2012",
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volume = "64",
journal = "International Foundry Research",
issn = "0046-5933",
publisher = "Giesserei-Verlag GmbH",
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Design and production of a novel sand materials strength testing machine for foundry applications. / Nwaogu, Ugochukwu Chibuzoh; Hansen, K. S.; Tiedje, Niels Skat.

In: International Foundry Research, Vol. 64, No. 2, 2012.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Design and production of a novel sand materials strength testing machine for foundry applications

AU - Nwaogu, Ugochukwu Chibuzoh

AU - Hansen, K. S.

AU - Tiedje, Niels Skat

PY - 2012

Y1 - 2012

N2 - In the foundry, existing strength testing machines are used to measure only the maximum fracture strength of mould and core materials. With traditionally used methods, the loading history to ascertain deformation of the material is not available. In this paper, a novel moulding material strength testing machine was designed and built for both green sand and chemically-bonded sand materials. This machine measures and presents the loading response as a force-displacement profile from which the mechanical properties of the moulding materials can be deduced. The system was interfaced to a computer with a commercial PC based-control and data acquisition software. The testing conditions and operations are specified in the user interface and the data acquisition is made according to specifications. The force and displacements were calibrated to ensure consistency and reliability of the measurement data. The force was calibrated using an Amsler Hydraulic Press while the displacements were calibrated with and without loading using a displacement calibrator (Heidenhain Digitaler). The calibration results showed that the data obtained are stable and reliable and the machine can be used for the measurement of the strength of chemically-bonded sand materials.

AB - In the foundry, existing strength testing machines are used to measure only the maximum fracture strength of mould and core materials. With traditionally used methods, the loading history to ascertain deformation of the material is not available. In this paper, a novel moulding material strength testing machine was designed and built for both green sand and chemically-bonded sand materials. This machine measures and presents the loading response as a force-displacement profile from which the mechanical properties of the moulding materials can be deduced. The system was interfaced to a computer with a commercial PC based-control and data acquisition software. The testing conditions and operations are specified in the user interface and the data acquisition is made according to specifications. The force and displacements were calibrated to ensure consistency and reliability of the measurement data. The force was calibrated using an Amsler Hydraulic Press while the displacements were calibrated with and without loading using a displacement calibrator (Heidenhain Digitaler). The calibration results showed that the data obtained are stable and reliable and the machine can be used for the measurement of the strength of chemically-bonded sand materials.

M3 - Journal article

VL - 64

JO - International Foundry Research

JF - International Foundry Research

SN - 0046-5933

IS - 2

ER -