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Comparison of forging load between whole and local forging processes of titanium alloy compressor disc: analytical and numerical studies.

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Title: Comparison of forging load between whole and local forging processes of titanium alloy compressor disc: analytical and numerical studies.
Authors: Zhang, Da-Wei1 (AUTHOR) zhangdawei2000@mail.xjtu.edu.cn, Xiao, Sheng-Tong1 (AUTHOR), Li, Han-Jing1 (AUTHOR), Yu, Zi-Jian1 (AUTHOR), Zhang, Jin-Jun1 (AUTHOR)
Source: International Journal of Advanced Manufacturing Technology. Jan2026, Vol. 142 Issue 1/2, p235-250. 16p.
Subjects: Titanium alloys, Forging (Manufacturing process), Finite element method, Jet engines, Mechanical loads
Abstract: Titanium alloy compressor disc is a key component of aero-engine. Although the isothermal forging is adopted for manufacturing the compressor disc, the excessive forging load is a common problem in the whole loading process. By using the intermittent local loading process, the required equipment tonnage can be reduced, and the large-size compressor disc forging can be manufactured simply and effectively. However, the less-force mechanism of local loading process for axisymmetric disk parts needs to be further investigated. The forging loads of whole loading process and local loading process for compressor disc forging was investigated by using slab method (SM) and finite element method (FEM) in this study. The SM models were developed to describe the forging loads at typical cavity filling stages of the whole loading and local loading processes of compressor disc. The SM and FEM results indicated that the forging load is notable reduced by the local loading process, especially the forging load at the filling stages for the medial-side boss cavity and the outer-side rib cavity. The SM model can well explain the forging load saving by local loading forming of compressor disc: the forging load is mainly reduced by the reduction of contact bearing area at initial forming stage and by the weakening boundary constraints due to local loading at middle and later forming stages. In the local loading zone, the forging load in the region near the die partition boundary is less than that in the corresponding region under whole loading mode, and the forging load in the region far from the die partition boundary is almost the same as that in the corresponding region under whole loading mode. The developed models and research results provide a basis for process design of less-force manufacture for large-size compressor disc. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 190749957
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Comparison of forging load between whole and local forging processes of titanium alloy compressor disc: analytical and numerical studies.
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Da-Wei%22">Zhang, Da-Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhangdawei2000@mail.xjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Xiao%2C+Sheng-Tong%22">Xiao, Sheng-Tong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Han-Jing%22">Li, Han-Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Zi-Jian%22">Yu, Zi-Jian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jin-Jun%22">Zhang, Jin-Jun</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Jan2026, Vol. 142 Issue 1/2, p235-250. 16p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Titanium+alloys%22">Titanium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Forging+%28Manufacturing+process%29%22">Forging (Manufacturing process)</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Jet+engines%22">Jet engines</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+loads%22">Mechanical loads</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Titanium alloy compressor disc is a key component of aero-engine. Although the isothermal forging is adopted for manufacturing the compressor disc, the excessive forging load is a common problem in the whole loading process. By using the intermittent local loading process, the required equipment tonnage can be reduced, and the large-size compressor disc forging can be manufactured simply and effectively. However, the less-force mechanism of local loading process for axisymmetric disk parts needs to be further investigated. The forging loads of whole loading process and local loading process for compressor disc forging was investigated by using slab method (SM) and finite element method (FEM) in this study. The SM models were developed to describe the forging loads at typical cavity filling stages of the whole loading and local loading processes of compressor disc. The SM and FEM results indicated that the forging load is notable reduced by the local loading process, especially the forging load at the filling stages for the medial-side boss cavity and the outer-side rib cavity. The SM model can well explain the forging load saving by local loading forming of compressor disc: the forging load is mainly reduced by the reduction of contact bearing area at initial forming stage and by the weakening boundary constraints due to local loading at middle and later forming stages. In the local loading zone, the forging load in the region near the die partition boundary is less than that in the corresponding region under whole loading mode, and the forging load in the region far from the die partition boundary is almost the same as that in the corresponding region under whole loading mode. The developed models and research results provide a basis for process design of less-force manufacture for large-size compressor disc. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00170-025-16715-0
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        Text: English
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      – SubjectFull: Finite element method
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      – SubjectFull: Jet engines
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      – SubjectFull: Mechanical loads
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      – TitleFull: Comparison of forging load between whole and local forging processes of titanium alloy compressor disc: analytical and numerical studies.
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              Text: Jan2026
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