Carl Frahme is president of Frahme Consulting Services, Inc. and has over 35 years of experience in many aspects of the ceramic industry. He co-founded the Ceramic Correspondence Institute (CCI) in 1972 and remains active as an instructor and course author. He actively consults in the area of statistical process control and is author of the CCI course Statistical Process Control for Ceramics and Glass. He holds a Ph.D. in ceramic engineering from Rutgers - The State University and a B.S. in metallurgical engineering from Case Institute of Technology (now Case Western Reserve). Dr. Frahme is a member and fellow of the American Ceramic Society and a member of the National Institute of Ceramic Engineers.
New technologies can result in increased production rates, lower labor input, improved product properties and performance, lower unit costs, lower scrap rates, and improved yields in downstream processing.
Control charts can tell us whether processes-as characterized by various property or process measurements-are in control, drifting or out of control. However, the charts can't tell us much of anything about the relationships between process properties or variables.
The basic functions of statistical process control (SPC) include the use of statistical tools to characterize processes, determine their inherent variability, monitor whether or not the processes are in control, and ultimately optimize processes and their control.