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다이캐스팅 공정의 품질고도화를 위한 지능화 분석 시스템 개발

Development of Intelligence Data Analytics System for Quality Enhancement of Die-Casting Process

Journal of the Korean Society for Precision Engineering 2020;37(4):247-254.
Published online: April 1, 2020

1 한국생산기술연구원 IT융합공정그룹

1 IT Converged Process R&D Group, Korea Institute of Industrial Technology

#E-mail: ljy0613@kitech.re.kr, TEL: +82-31-8040-6163
• Received: October 7, 2019   • Revised: January 13, 2020   • Accepted: February 26, 2020

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Citations

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  • Die-Casting Defect Prediction and Diagnosis System using Process Condition Data
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Development of Intelligence Data Analytics System for Quality Enhancement of Die-Casting Process
J. Korean Soc. Precis. Eng.. 2020;37(4):247-254.   Published online April 1, 2020
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Development of Intelligence Data Analytics System for Quality Enhancement of Die-Casting Process
J. Korean Soc. Precis. Eng.. 2020;37(4):247-254.   Published online April 1, 2020
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Development of Intelligence Data Analytics System for Quality Enhancement of Die-Casting Process
Image Image Image Image Image
Fig. 1 Installed edge device
Fig. 2 Diagram of intelligence system supporting infrastructure
Fig. 3 Defect prediction model generation process
Fig. 4 Server-edge dualized analysis system
Fig. 5 Flow of dualized data analysis system utilization
Development of Intelligence Data Analytics System for Quality Enhancement of Die-Casting Process

Data for data analysis model generation

Category Collected data
Processing
variable
parameter
Shot No, Physical strength, Biscket thickness, Injection velocity, High speed velocity, Cylinder pressure, Cycle time, Pressure increase time, Casting pressure, Spray time
Sensor Factory temperature, Factory humidity, Heating furnace temperature, Coolant temperature, Air pressure
Production Lot No, Product No, Product name, Product code, Production start time, Production end time, Production quantity
Defect Process, Product No, Product name, Machine code, Worker, Defect code, Defect quantity

Data model parameter

Data
set
Rare class
substitution
Rare class
elimination
Model
Count
Category
Count
T01 0.05 0.05 3 2
T02 0.05 0.05 5 2
T03 0.05 0.05 10 2
T04 0.05 0.05 20 2
T05 0.05 0.05 10 5
T06 0.05 0.05 3 2
T07 0.01 0.01 3 2
T08 0.01 0.01 10 2
T09 0.01 0.01 10 5
T10 0.01 0.01 20 2

Prediction accuracy for each parameter

Data set Accuracy Error
T01 0.65 0.35
T02 0.64 0.36
T03 0.67 0.33
T04 0.63 0.34
T05 0.62 0.38
T06 0.61 0.39
T07 0.81 0.19
T08 0.84 0.16
T09 0.86 0.14
T10 0.86 0.14
Table 1 Data for data analysis model generation
Table 2 Data model parameter
Table 3 Prediction accuracy for each parameter