The Key Technology of Lattice Mold Design of Windshield Glasses in High-Speed Train

The Key Technology of Lattice Mold Design of Windshield Glasses in High-Speed Train

Abstract: As one kind of surface laminated glasses with thermal bending process in multiple#br# species and small batch, the windshield glasses in high-speed train need to meet the requirements#br# of aerodynamics, visuality and security. The mold design is one of the key technologies to shorten#br# the development cycle and the cost. The lattice mold is preferred to the solid mold and the frame#br# mold comparing with tolerance, weight and cost. The means of lattice mold design based on the#br# general CAD software, leads to high complexity and repeatability. To enhance the designing#br# efficiency and quality, firstly, the approach to calculate and adjust the basic plane is proposed,#br# elaborated by the chart and exemplified by the example. Secondly, the process to get the mold#br# curves is standardized by inputting the boundary position and the numbers. Thus the mold curves#br# are serialized and saved. Lastly, including the functions of calculating the bending distance and#br# inquiring the corner points, the special software is developed based on the proposed approach,#br# applied by the Beijing MingDun technology Ltd. The pictures of the lattice mold and the#br# corresponding windshield glasses are given, which verify the practicability and effectiveness of#br# the proposed approach and the developed software preliminarily.#br# Key words: lattice mold; windshield glasses; surface; geometric transformation; high-speed#br# train

Online:2015-06-30 Published:2015-05-05

Abstract

Abstract: As one kind of surface laminated glasses with thermal bending process in multiple
species and small batch, the windshield glasses in high-speed train need to meet the requirements
of aerodynamics, visuality and security. The mold design is one of the key technologies to shorten
the development cycle and the cost. The lattice mold is preferred to the solid mold and the frame
mold comparing with tolerance, weight and cost. The means of lattice mold design based on the
general CAD software, leads to high complexity and repeatability. To enhance the designing
efficiency and quality, firstly, the approach to calculate and adjust the basic plane is proposed,
elaborated by the chart and exemplified by the example. Secondly, the process to get the mold
curves is standardized by inputting the boundary position and the numbers. Thus the mold curves
are serialized and saved. Lastly, including the functions of calculating the bending distance and
inquiring the corner points, the special software is developed based on the proposed approach,
applied by the Beijing MingDun technology Ltd. The pictures of the lattice mold and the
corresponding windshield glasses are given, which verify the practicability and effectiveness of
the proposed approach and the developed software preliminarily.

Key words: lattice mold, windshield glasses, surface, geometric transformation, high-speed
train

Song Yuwang, Yang Changhao, Shi Xiaofei, Xi Ping. The Key Technology of Lattice Mold Design of Windshield Glasses in High-Speed Train[J]. Journal of Graphics.

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The Key Technology of Lattice Mold Design of Windshield Glasses in High-Speed Train

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