Thermal distortion of disc-shaped ductile iron castings in vertically parted moulds

Nikolaj Kjelgaard Vedel-Smith; Jakob Rasmussen; Niels Skat Tiedje

doi:10.1016/j.jmatprotec.2014.11.025

Thermal distortion of disc-shaped ductile iron castings in vertically parted moulds

Nikolaj Kjelgaard Vedel-Smith, Jakob Rasmussen, Niels Skat Tiedje

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A disc-shaped casting with an inner boss and an outer rim, separated by a thin walled section, was examined. This measurable deformation varied with the feeding modulus. The influence of alloy composition, particularly Si content, was examined with a pearlitic ductile iron (EN-GJS-500-7) and a fully ferritic ductile iron (EN-GJS-450-10). The experiment showed that both the alloy composition and choice of feeder influenced the degreeof deformation measured in the finished casting. It was found that the deformation of the pearlitic alloy was influenced controllably by changing the feeder modulus, whereas the deformation of the fully ferritic alloy was less affected by a change in thermal gradient. Both alloys underwent comparable deformations with respect to size, shape, and location.© 2014 Elsevier B.V. All rights reserved

Original language	English
Journal	Journal of Materials Processing Technology
Volume	217
Pages (from-to)	262-271
ISSN	0924-0136
DOIs	https://doi.org/10.1016/j.jmatprotec.2014.11.025
Publication status	Published - 2015

Keywords

Dimensional accuracy
SG iron
Feeder and riser
Machining allowance
SI content
Thermal gradient

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title = "Thermal distortion of disc-shaped ductile iron castings in vertically parted moulds",

abstract = "A disc-shaped casting with an inner boss and an outer rim, separated by a thin walled section, was examined. This measurable deformation varied with the feeding modulus. The influence of alloy composition, particularly Si content, was examined with a pearlitic ductile iron (EN-GJS-500-7) and a fully ferritic ductile iron (EN-GJS-450-10). The experiment showed that both the alloy composition and choice of feeder influenced the degreeof deformation measured in the finished casting. It was found that the deformation of the pearlitic alloy was influenced controllably by changing the feeder modulus, whereas the deformation of the fully ferritic alloy was less affected by a change in thermal gradient. Both alloys underwent comparable deformations with respect to size, shape, and location.{\textcopyright} 2014 Elsevier B.V. All rights reserved",

keywords = "Dimensional accuracy, SG iron, Feeder and riser, Machining allowance, SI content, Thermal gradient",

author = "Vedel-Smith, {Nikolaj Kjelgaard} and Jakob Rasmussen and Tiedje, {Niels Skat}",

year = "2015",

doi = "10.1016/j.jmatprotec.2014.11.025",

language = "English",

volume = "217",

pages = "262--271",

journal = "Journal of Materials Processing Technology",

issn = "0924-0136",

publisher = "Elsevier",

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T1 - Thermal distortion of disc-shaped ductile iron castings in vertically parted moulds

AU - Vedel-Smith, Nikolaj Kjelgaard

AU - Rasmussen, Jakob

AU - Tiedje, Niels Skat

PY - 2015

Y1 - 2015

N2 - A disc-shaped casting with an inner boss and an outer rim, separated by a thin walled section, was examined. This measurable deformation varied with the feeding modulus. The influence of alloy composition, particularly Si content, was examined with a pearlitic ductile iron (EN-GJS-500-7) and a fully ferritic ductile iron (EN-GJS-450-10). The experiment showed that both the alloy composition and choice of feeder influenced the degreeof deformation measured in the finished casting. It was found that the deformation of the pearlitic alloy was influenced controllably by changing the feeder modulus, whereas the deformation of the fully ferritic alloy was less affected by a change in thermal gradient. Both alloys underwent comparable deformations with respect to size, shape, and location.© 2014 Elsevier B.V. All rights reserved

AB - A disc-shaped casting with an inner boss and an outer rim, separated by a thin walled section, was examined. This measurable deformation varied with the feeding modulus. The influence of alloy composition, particularly Si content, was examined with a pearlitic ductile iron (EN-GJS-500-7) and a fully ferritic ductile iron (EN-GJS-450-10). The experiment showed that both the alloy composition and choice of feeder influenced the degreeof deformation measured in the finished casting. It was found that the deformation of the pearlitic alloy was influenced controllably by changing the feeder modulus, whereas the deformation of the fully ferritic alloy was less affected by a change in thermal gradient. Both alloys underwent comparable deformations with respect to size, shape, and location.© 2014 Elsevier B.V. All rights reserved

KW - Dimensional accuracy

KW - SG iron

KW - Feeder and riser

KW - Machining allowance

KW - SI content

KW - Thermal gradient

U2 - 10.1016/j.jmatprotec.2014.11.025

DO - 10.1016/j.jmatprotec.2014.11.025

M3 - Journal article

VL - 217

SP - 262

EP - 271

JO - Journal of Materials Processing Technology

JF - Journal of Materials Processing Technology

SN - 0924-0136

ER -