journal article·2021-04-08Open access

Study on Mechanism of Glass Molding Process for Fingerprint Lock Glass Plates

Wuyi Ming, Haojie Jia, Heyuan Huang, Guojun Zhang, Kun Liu, Ya Lu, Chen Cao

Crystals· Volume 11· Issue 4

Abstract

Curved glass is widely used in 3C industry, and the market demand is increasing gradually. Glass molding process (GMP) is a high-precision, high-efficiency 3D glass touch panel processing technology. In this study, the processing parameters of fingerprint lock glass panels were deeply analyzed. This paper first introduces the molding process of the glass panel, discusses the glass forming device, and explains the heat conduction principle of the glass. Firstly, it introduces the forming process of the glass panel, discusses the glass forming device, and explains the heat conduction principle of the glass. Secondly, the simulation model of a fingerprint lock glass plate was simulated by MSC. Marc software. The stress relaxation model and structure relaxation model are used in the model, and the heat transfer characteristics of glass mold are combined to accurately predict the forming process of glass components. The effects of molding temperature, heating rate, holding time, molding pressure, cooling rate and other process parameters on product quality characteristics (residual stress and shape deviation) were analyzed through simulation experiments. The results show that, in a certain range, the residual stress is inversely proportional to the bending temperature and heating rate, and is directly proportional to the cooling rate, while the shape deviation decreases with the increase of temperature and heating rate. When the cooling rate decreases, the shape deviation first decreases and then increases. Furthermore, a verification experiment is designed to verify the reliability of the simulation results by measuring and calculating the surface roughness of the formed products.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Advanced Surface Polishing Techniques · Additive Manufacturing and 3D Printing Technologies · Laser Material Processing Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electromechanical Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China

Guangdong Provincial Key Laboratory of Manufacturing Equipment Digitization, Guangdong HUST Industrial Technology Research Institute, Dongguan 523808, China

State Key Lab of Digital Manufacturing Equipment Technology, School of Mechanical Science and Engineering, Huazhong University of Science Technology, Wuhan 430074, China

Funding

National Natural Science Foundation of China (NSFC) · Natural Science Foundation of Guangdong Province · Research Team Project of Guangdong Pearl River Talents Program

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