Feeding System Design Based on Data Model and Decision Optimization for Superalloy Castings

Sun Jinyu; Wang Donghong; Liu Shumei; Shu Da

doi:10.15980/j.tzzz.2019.01.007

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Feeding System Design Based on Data Model and Decision Optimization for Superalloy Castings
Vol. 39, Issue 1, Pages: 23-27(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.01.007

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[1]孙锦玉,汪东红,刘淑梅,疏达.基于数据模型与决策优化的高温合金铸件冒口设计[J].特种铸造及有色合金,2019,39(01):23-27.

Sun Jinyu, Wang Donghong, Liu Shumei, et al. Feeding System Design Based on Data Model and Decision Optimization for Superalloy Castings. [J]. Special Casting & Nonferrous Alloys 39(1):23-27(2019)
[1]孙锦玉,汪东红,刘淑梅,疏达.基于数据模型与决策优化的高温合金铸件冒口设计[J].特种铸造及有色合金,2019,39(01):23-27. DOI： 10.15980/j.tzzz.2019.01.007.

Sun Jinyu, Wang Donghong, Liu Shumei, et al. Feeding System Design Based on Data Model and Decision Optimization for Superalloy Castings. [J]. Special Casting & Nonferrous Alloys 39(1):23-27(2019) DOI： 10.15980/j.tzzz.2019.01.007.

摘要

以高温合金Inconel 939环套环铸件的冒口尺寸为优化对象

以铸件工艺出品率及缩松与铸件表面距离作为优化目标

采用均匀拉丁超立方法设计模拟方案

并根据模拟结果以不同的算法建立响应面模型

选取较优响应面模型

通过NSGA-Ⅱ算法对高温合金铸件冒口尺寸进行多目标优化

利用多准则决策MCDM（Multi Criteria Decision Maker）对多目标优化问题进行决策。比较数字化模型优化结果与模拟结果

发现铸件工艺出品率相差0.28%

内、外环冒口缩松位置与铸件表面距离分别为0.91、0.21mm。

Abstract

Taking the riser size of the superalloy Inconel 939 ring to ring castings as the optimized object

the casting yield and distance between the shrinkage and the casting surface were optimized.Firstly

the simulation scheme was designed by the uniform Latin Hypercube method.Then

the response surface model was established by different algorithms according to the simulated data.Finally

the optimal response surface model was selected to take multi-objective optimization of the riser size of the superalloy casting by the NSGA-Ⅱalgorithm.MCDM（multi criteria decision maker）was adopted to make decisions on multi-objective optimization problems.Through comparing the numerical model optimization results with the simulated ones

the casting yield difference is0.28%

and distance between the inner and outer ring riser shrinkage porosity and casting surface are 0.91 mm and 0.21 mm

respectively.