Quality Control System for Die Castings Based on Statistic Analysis

Abstract:

Die casting technology is applied widely for mass production of non-ferrous metal parts. How to guarantee the quality of die castings is always a concerned topic. A quality control system for die casting machine was developed based on statistical analysis of technology parameters. Firstly the original data is acquired from die casting machine and the technology curves are displayed. Secondly, the technology parameters are identified automatically and a database of technology parameters is established. Thirdly, a statistical analysis based on the database is performed. The statistics parameters of expecta -tion and deviation are figured out and the probability distribution diagrams for technology parameters are displayed. Finally, Tolerances for technology parameters are figured out and then the system will monitor the die casting process according to the tolerances. A practical system realization in a die casting machine is demonstrated by its monitoring interfaces. Statistical information and on-line monitoring provided by this system are helpful to guarantee the quality of die castings.

• Periodical: Applied Mechanics and Materials (Volumes 246-247)
• Pages: 918-923
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.246-247.918
• Online since: December 2012
• Authors: Xiao Fang Ruan
• Keywords: Die Castings, Quality Control, Statistical Analysis

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