Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloy

The large warping deformation at platform of turbine blade directly affects the forming precision. In the present research, equivalent warping deformation was firstly presented to describe the extent of deformation at platform. To optimize the process parameters during investment casting to minimize...

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Main Authors: Jia-wei Tian, Kun Bu, Jin-hui Song
Format: Article
Language:English
Published: Foundry Journal Agency 2017-11-01
Series:China Foundry
Subjects:
Online Access:http://ff.foundryworld.com/uploadfile/2018010335227073.pdf
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author Jia-wei Tian
Kun Bu
Jin-hui Song
author_facet Jia-wei Tian
Kun Bu
Jin-hui Song
author_sort Jia-wei Tian
collection DOAJ
description The large warping deformation at platform of turbine blade directly affects the forming precision. In the present research, equivalent warping deformation was firstly presented to describe the extent of deformation at platform. To optimize the process parameters during investment casting to minimize the warping deformation of the platform, based on simulation with ProCAST, the single factor method, orthogonal test, neural network and genetic algorithm were subsequently used to analyze the influence of pouring temperature, shell mold preheating temperature, furnace temperature and withdrawal velocity on dimensional accuracy of the platform of superalloy-DD6 turbine blade. The accuracy of investment casting simulation was verified by measurement of platform at blade casting. The simulation results with the optimal process parameters illustrate that the equivalent warping deformation was dramatically reduced by 21.8% from 0.232295 mm to 0.181698 mm.
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spelling doaj.art-9f1c2d7602b74f14812f691db82d12c82022-12-22T02:51:04ZengFoundry Journal AgencyChina Foundry1672-64211672-64212017-11-0114646947710.1007/s41230-017-6063-9Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloyJia-wei Tian0Kun Bu1Jin-hui Song2Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi’an 710072, Shannxi, ChinaKey Laboratory of Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi’an 710072, Shannxi, ChinaKey Laboratory of Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi’an 710072, Shannxi, ChinaThe large warping deformation at platform of turbine blade directly affects the forming precision. In the present research, equivalent warping deformation was firstly presented to describe the extent of deformation at platform. To optimize the process parameters during investment casting to minimize the warping deformation of the platform, based on simulation with ProCAST, the single factor method, orthogonal test, neural network and genetic algorithm were subsequently used to analyze the influence of pouring temperature, shell mold preheating temperature, furnace temperature and withdrawal velocity on dimensional accuracy of the platform of superalloy-DD6 turbine blade. The accuracy of investment casting simulation was verified by measurement of platform at blade casting. The simulation results with the optimal process parameters illustrate that the equivalent warping deformation was dramatically reduced by 21.8% from 0.232295 mm to 0.181698 mm.http://ff.foundryworld.com/uploadfile/2018010335227073.pdfProCASToptimization of process parameterswarping deformation of platformorthogonal testgenetic algorithmBP-neural network
spellingShingle Jia-wei Tian
Kun Bu
Jin-hui Song
Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloy
China Foundry
ProCAST
optimization of process parameters
warping deformation of platform
orthogonal test
genetic algorithm
BP-neural network
title Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloy
title_full Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloy
title_fullStr Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloy
title_full_unstemmed Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloy
title_short Optimization of investment casting process parameters to reduce warpage of turbine blade platform in DD6 alloy
title_sort optimization of investment casting process parameters to reduce warpage of turbine blade platform in dd6 alloy
topic ProCAST
optimization of process parameters
warping deformation of platform
orthogonal test
genetic algorithm
BP-neural network
url http://ff.foundryworld.com/uploadfile/2018010335227073.pdf
work_keys_str_mv AT jiaweitian optimizationofinvestmentcastingprocessparameterstoreducewarpageofturbinebladeplatformindd6alloy
AT kunbu optimizationofinvestmentcastingprocessparameterstoreducewarpageofturbinebladeplatformindd6alloy
AT jinhuisong optimizationofinvestmentcastingprocessparameterstoreducewarpageofturbinebladeplatformindd6alloy