Abstract
All plastics processing companies have to fulfill the objectives of time, cost and quality. Against this background, those producing in high wage countries are especially challenged, because superior part quality is often the only possibility to prevail in competition. Since this leads to high expenses on quality assurance, for some time already efforts have been made to predict the quality of injection molded parts from process data using machine learning algorithms. However, these did not yet prevail in industry, mainly for two reasons: First, because of the inevitable learning effort that is required to set up a quality prediction model and second, because of the complexity in the application. Current research in the field of transfer learning aiming to shorten learning phases addresses the first challenge. In this paper, we present a holistic approach for the data analysis steps that are necessary once process and quality data have been generated, aiming to minimize the application effort for the operator. This includes the development and application of suitable algorithms for automatic selection of data, process features as well as machine learning algorithms including hyper-parameter optimization and model adaption. Combining the two approaches could bring quality prediction one significant step forward to successful industry application. Beyond this, the presented approach is universally applicable and can therefore be used for other plastics processing methods as well.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Notes
- 1.
In total 9 downtimes of 5, 15 and 25 min (3 times each), taking place every 100 cycles.
- 2.
Variation of re-grind material fraction from 0 to 100% in steps of 25%, 200 cycles each. Used material: Polypropylene LyondellBasell Moplen HP501H.
- 3.
The parts were weighed with a Sartorius Entris 153I-1S balance with 1 mg reproducibility, part length were extracted algorithmically from images taken with a Canon Eos 5D Mark III DSLR with EF 70-200mm f/4L USM objective.
References
Hopmann, C., Michaeli, W.: Einführung in die Kunststoffverarbeitung, 7th edn. Hanser, Munich (2015)
Hopmann, C., Michaeli, W., Greiff, H., et al.: Technologie des Spritzgießens, 4th edn. Hanser, Munich (2017)
Standard DIN 24450: Maschinen zum Verarbeiten von Kunststoffen und Kautschuk. Beuth, Berlin (1987)
Schiffers, R.: Verbesserung der Prozessfähigkeit beim Spritzgießen durch Nutzung von Prozessdaten und eine neuartige Schneckenhubführung. PhD thesis (2009)
Gierth, M.: Methoden und Hilfsmittel zur prozessnahen Qualitätssicherung beim Spritzgießen von Thermoplasten. PhD thesis (1992)
Hanning, D.: Continuous Process Control. Qualitätssicherung im Kunststoffverarbeitungs-prozess auf Basis statistischer Prozessmodelle. PhD thesis (1994)
Häußler, J.: Eine Qualitätssicherungsstrategie für die Kunststoffverarbeitung auf der Basis künstlicher Neuronaler Netzwerke. PhD thesis (1994)
Vaculik, R.: Regelung der Formteilqualität beim Spritzgießen auf Basis statistischer Prozessmodelle. PhD thesis (1996)
Al-Haj Mustafa, M.: Modellbasierte Ansätze zur Qualitätsregelung beim Kunststoffspritzgießen. PhD thesis (2000)
Schnerr, O.: Automatisierung der Online-Qualitätsüberwachung beim Kunststoffspritzgießen. PhD thesis (2000)
Walter, A.: Methoden des prozessnahen Qualitätsmanagements in der Kunststoffverarbeitung. PhD thesis (2000)
Liedl, P., Haag, G., Müller, H., et al.: Spitzenqualität mit kurzen Zyklen. Kunststoffe 2, 38–40 (2010)
Hopmann, C., Theunissen, M., Heinisch, J.: Von der Simulation in die Maschine – objektivierte Prozesseinrichtung durch maschinelles Lernen. In: VDI Jahrestagung Spritzgießen, Baden-Baden (2018)
Hopmann, C., Theunissen, M., Wipperfürth, J., et al.: Prozesseinrichtung durch maschinelles Lernen. Kunststoffe 6, 36–41 (2018)
Hopmann, C., Wahle, J., Theunissen, M., et al.: Flexibilisierung der Spritzgießfertigung durch Digitalisierung. In: Kunststoffindustrie 4.0 – 29. Internationales Kolloquium Kunststofftechnik, pp. 76–88 (2018)
Tercan, H., Guajardo, A., Heinisch, J., et al.: Tranfer-learning: bridging the gap between real and simulation data for machine learning in injection molding. Procedia CIRP 72, 185–190 (2018)
Hopmann, C., Bibow, P., Heinisch, J.: Internet of Plastics Processing. IPC Madison, USA (2019)
Guyon, I., Elisseeff, A.: An introduction to variable and feature selection. J. Mach. Learn. Res. 3(3), 1157–1182 (2003)
Charest, M., Finn, R.; Dubay, R.: Integration of artificial intelligence in an injection molding process for on-line process parameter adjustment. In: Annual IEEE International Systems Conference (SysCon), pp. 1–6. IEEE, Vancouver, Canada (2018)
Gao, H., Zhang, Y., Zhou, X., Li, D.: Intelligent methods for the process parameter determination of plastic injection molding. Front. Mech. Eng. 13(1), 85–95 (2018)
Duda, R., Hart, P., Stork, D.: Pattern Classification, 2nd edn. Wiley, New York (2001)
Arlot, S., Celisse, A.: A survey of cross-validation procedures for model selection. Stat. Surv. 4, 40–79 (2010)
Pudil, P., Novovičová, J., Kittler, J.: Floating search methods in feature selection. Pattern Recogn. Lett. 15(11), 1119–1125 (1994)
Chandrashekar, G., Sahin, F.: A survey on feature selection methods. Comput. Electr. Eng. 40(1), 16–28 (2014)
Hall, M.A.: Correlation-based feature selection for machine learning. PhD thesis (1999)
Kira, K., Rendell, L.A.: The feature selection problem: traditional methods and a new Algorithm. In: AAAI’92 Proceedings of the Tenth National Conference on artificial Intelligence, pp. 129–134. AAAI, San Jose, California, USA (1992)
Ding, C., Peng, H.: Minimum redundancy feature selection from microarray gene expression data. In: IEEE Computer Society Bioinformatics Conference, pp. 523–528, IEEE, Stanford, USA (2003)
Hall, M. A., Smith, L. A.: Practical feature subset selection for machine learning. In: ACSC’98 Proceedings of the 21st Australasian Computer Science Conference, pp. 181–191. ACSC, Perth, Australia (1998)
Russell, S.J., Norvig, P.: Artificial intelligence, 2nd edn. Prentice Hall, Pearson Education, Upper Saddle River (2003)
Alpaydin, E.: Introduction to machine learning, 2nd edn. MIT Press, Cambridge (2010)
Hagan, M.T., Demuth, H.B., Beale, M.H.: Neural Network Design, 1st edn. PWS, Boston (1996)
Smola, A.J., Schölkopf, B.: A tutorial on support vector regression. Stat. Comput. 14(3), 199–222 (2004)
Breiman, L., Friedman, J., Stone, C.J., Olshen, R.A.: Classification and Regression Trees, 1st edn. CRC Press, Boca Raton (1984)
Biau, G., Devroye, L., Dujmović, V., Krzyżak, A.: An affine invariant k-nearest neighbor regression estimate. J. Multivar. Anal. 112, 24–34 (2012)
Hastie, T., Tibshirani, R., Friedman, J.H.: The Elements of Statistical Learning. Data Mining, Inference, and Prediction, 2nd edn. Springer, New York (2017)
Breiman, L.: Random forests. Mach. Learn. 45(1), 5–32 (2001)
Rasmussen, C.E., Williams, C.K.I.: Gaussian Processes for Machine Learning, 3rd edn. MIT Press, Cambridge (2008)
Urban, D., Mayerl, J.: Angewandte Regressionsanalyse: Theorie, Technik und Praxis, 5th edn. Springer VS, Wiesbaden (2018)
Claesen, M., De Moor, B.: Hyperparameter search in machine learning. In: MIC 2015: The XI Metaheuristics International Conference, pp. 1–5, MIC, Agadir, Morocco (2015)
Bengio, Y.: Practical recommendations for gradient-based training of deep architectures. Lecture Notes in Computer Science 7700 LECTURE NO, pp. 437–478 (2012)
Ito, K., Nakano, R.: Optimizing Support Vector regression hyperparameters based on cross-validation. In: Proceedings of the International Joint Conference on Neural Networks, pp. 2077–2082. IEEE, Portland, USA (2003)
Matignon, R.: Data Mining using SAS Enterprise Miner, 1st edn. Wiley-Interscience, Hoboken (2007)
Wilson, D.R., Martinez, T.R.: Improved heterogeneous distance functions. J. Artif. Intell. Res. 6, 1–34 (1997)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer-Verlag GmbH Germany, part of Springer Nature
About this paper
Cite this paper
Schulze Struchtrup, A., Kvaktun, D., Schiffers, R. (2020). A Holistic Approach to Part Quality Prediction in Injection Molding Based on Machine Learning. In: Hopmann, C., Dahlmann, R. (eds) Advances in Polymer Processing 2020. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-60809-8_12
Download citation
DOI: https://doi.org/10.1007/978-3-662-60809-8_12
Published:
Publisher Name: Springer Vieweg, Berlin, Heidelberg
Print ISBN: 978-3-662-60808-1
Online ISBN: 978-3-662-60809-8
eBook Packages: EngineeringEngineering (R0)