Individual Station Monitoring Using Press Tonnage Sensors for Multiple Operation Stamping Processes  

Oleh:

Jionghua, Jin

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 126 no. 1 (Feb. 2004), page 83-90.
Topik: OPERATION; station monitoring; press tonnage sensors; multiple operation

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

In multiple operation stamping processes, a press tonnage signal measured by press tonnage sensors installed on press linkages / uprights, is the summation of die forces at all stations. Different from the current practice of using a whole cycle of press tonnage signals to monitor the compound condition of all stations, this paper proposes a new method to use the partitioned monitoring segments of press tonnage signals to monitor individual station conditions. For this purpose, a generic signal segmentation principle is proposed, and the Hotelling T2 control charts are developed with consideration of the interactions among stations. A real case study of a doorknob stamping process is provided to demonstrate analysis procedures and effectiveness of the developed methodology.

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