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Article

Johnson, Louis; McNeilly, Kirk   (ASQ)   Minitab Inc., State College, PA; Metalor Technologies, Providence, RI

Quality Progress    Vol. 44    No. 5
QICID: 30253    May 2011    pp. 42-48
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Article Abstract

Metalor Technologies, an international metallurgy enterprise, used a rigorous factorial experiment design to understand its silver powder production process. The design of experiments incorporated a number of best practices, including multiple levels of all input variables, multiple control runs using normal operating conditions and a maximized range of input settings. Metalor’s analysis of the experimental data gave them a deep understanding of the process for the first time, allowing them to adjust the process for better conformation to specifications and more process control.

Keywords

Best practices, Case study, Design of experiments (DOE), Inputs, Manufacturing process, Process control, Quality improvement (QI), Standards and specifications, Statistical process control (SPC)


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