Quality prediction method for aluminum alloy ingot based on XGBoost

2020 ◽  
Author(s):  
Shen Yan ◽  
Dali Chen ◽  
Sen Wang ◽  
Shixin Liu
Keyword(s):  
Aluminum Alloy ◽  
Prediction Method ◽  
Quality Prediction ◽  
Alloy Ingot

scholarly journals Research on air quality prediction method in Hangzhou based on machine learning

2021 ◽  
Vol 2010 (1) ◽  
pp. 012011
Author(s):  
Zhongjie Fu ◽  
Haiping Lin ◽  
Bingqiang Huang ◽  
Jiana Yao
Keyword(s):  
Machine Learning ◽  
Air Quality ◽  
Prediction Method ◽  
Quality Prediction ◽  
Air Quality Prediction

Fatigue limit prediction of A356-T6 cast aluminum alloys with different defect sizes sampled from an actual large-scale component

2017 ◽  
Vol 8 (6) ◽  
pp. 617-631 ◽  
Author(s):  
Yoshihiko Uematsu ◽  
Toshifumi Kakiuchi ◽  
Akiko Tajiri ◽  
Masaki Nakajima
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Limit ◽  
Large Scale ◽  
Prediction Method ◽  
Fatigue Tests ◽  
Extreme Value Statistics ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Content Type ◽  
Modified Method

Purpose The purpose of this paper is the proposal of fatigue-life-prediction curve for cast aluminum alloy A356-T6 with different casting defect sizes. Design/methodology/approach Four kinds of A356-T6 fatigue specimens were sampled from the actual large-scale cast component, where the cooling rates were different. In addition, three kinds of A356 were casted under different casting conditions to simulate different defect sizes in the actual component. Subsequently, rotating bending fatigue tests were conducted using those samples. The maximum sizes of casting defects were quantitatively evaluated through microstructural observation and extreme value statistics. The fatigue limits of all samples were predicted using hardness and defect sizes based on modified Murakami’s equation. Findings The modified equation for fatigue limit prediction in A356-T6 was proposed. Fatigue limits were successfully predicted using the proposed equation. Originality/value Fatigue limit prediction method using hardness and maximum defect size was limited to steels. This paper proposed the modified method for A356-T6 aluminum alloy with lower elastic modulus. The method was valid for A356-T6 with different defect sizes.

The Effect of Casting Speed on Sump Shape and Ingot Surface of HDC Casting 7075 Aluminum Alloy Ingot

2011 ◽  
Vol 189-193 ◽  
pp. 3785-3788 ◽  
Author(s):  
Qing Feng Zhu ◽  
Zhi Hao Zhao ◽  
Xiang Jie Wang ◽  
Jian Zhong Cui
Keyword(s):  
Aluminum Alloy ◽  
Surface Quality ◽  
Casting Speed ◽  
Direct Chill ◽  
Liquid Pool ◽  
Ingot Surface ◽  
Direct Chill Casting ◽  
7075 Aluminum Alloy ◽  
Chill Casting ◽  
Alloy Ingot

7075 aluminum alloy ingot with the diameter of 100 mm has been produced by horizontal direct chill casting in different casting speed. The effect of casting speed on the sump profile and the ingot surface quality was studied by sump profile observation. It was found that increasing the casting speed results in the deepening of the liquid pool, the adding of segregation knots and the reducing of cold shouts in the ingot surface. It is also found that the depth of the liquid pool is directly proportional to the casting speed and the squared radius of the ingot.

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