Article ID: | iaor201525180 |
Volume: | 15 |
Issue: | 1 |
Start Page Number: | 57 |
End Page Number: | 71 |
Publication Date: | Nov 2015 |
Journal: | International Journal of Productivity and Quality Management |
Authors: | AlRefaie Abbas, AlHmaideen Kawther |
Keywords: | quality & reliability, optimization, production |
This research implements the well‐known Six Sigma approach define‐measure‐analyse improve‐control (DMAIC) to improve the performance of direct compression process with two quality responses: tablet's weight and hardness. At define phase, the x‐bar and s charts are established and judged in‐control for both responses. To measure performance, the values of the actual capability indices for hardness and weight are estimated 1.5 and 0.587, respectively, which indicate that the tableting process is capable for tablet's hardness but it is incapable for weight. At the analyse and improve phases, designed experiments utilising the Taguchi's L