Embedded Based Real-Time Monitoring in the High-Pressure Resin Transfer Molding Process for CFRP
Abstract
:1. Introduction
2. High-Pressure RTM
2.1. HP-RTM Process Parameter
2.2. Effects of Process Parameters
2.3. Sensor Layout
2.4. Monitoring System Architecture
3. Experimental Setup and Conditions
3.1. Embedded Based Monitoring System Fabrication
3.2. Experiments
4. Results and Discussion
4.1. Process Analysis
4.2. Detection of Abnormal States
4.2.1. Abnormal Curing Condition
4.2.2. Partial Impregnation
4.2.3. Broken Seal of Mold
5. Conclusions
Author Contributions
Conflicts of Interest
References
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Monitoring Parts | Sensors | Specifications | Number of Sensors | ||
---|---|---|---|---|---|
Mixing head | Pressure (S-11, WIKA) | Range | bar | 0~250 | 2 ea |
Accuracy | % | 0.5 | |||
Analog output | mA | 4~20 | |||
Temperature (TM4101, IFM) | Type | - | Pt 100 | 2 ea | |
Range | °C | 0~150 | |||
Mold | Cavity pressure (6161A, Kistler) | Range | bar | 0~200 | 4 ea |
Sensitivity | pC/bar | 18.5 | |||
Analog output | V | 0~10 | |||
Temperature (6194B, Kistler) | Type | - | K | 4 ea | |
Range | °C | 0~200 | |||
Analog output | V | 0~10 | |||
LVDT (GT2-Keyence) | Range | mm | 0~12 | 4 ea | |
Accuracy | μm | 1 | |||
Analog output | mA | 4~20 |
Parameter | Conditions |
---|---|
Press force (kN) | 3000 |
Mixing head pressure (bar) | 125 |
Resin temperature (°C) | 80 |
Hardener temperature (°C) | 45 |
Mixing ratio | 100:20 |
Mold temperature (°C) | 110 |
Injection rate (g/s) | 64.7 |
Injection time (s) | 9.5 |
End-gap (mm) | 0.5 |
Curing time (s) | 500, 600 |
Carbon sheet number | 7, 8 |
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Kim, R.-W.; Kim, C.-M.; Hwang, K.-H.; Kim, S.-R. Embedded Based Real-Time Monitoring in the High-Pressure Resin Transfer Molding Process for CFRP. Appl. Sci. 2019, 9, 1795. https://0-doi-org.brum.beds.ac.uk/10.3390/app9091795
Kim R-W, Kim C-M, Hwang K-H, Kim S-R. Embedded Based Real-Time Monitoring in the High-Pressure Resin Transfer Molding Process for CFRP. Applied Sciences. 2019; 9(9):1795. https://0-doi-org.brum.beds.ac.uk/10.3390/app9091795
Chicago/Turabian StyleKim, Roh-Won, Churl-Min Kim, Kyung-Hwan Hwang, and Sung-Ryul Kim. 2019. "Embedded Based Real-Time Monitoring in the High-Pressure Resin Transfer Molding Process for CFRP" Applied Sciences 9, no. 9: 1795. https://0-doi-org.brum.beds.ac.uk/10.3390/app9091795