Six Sigma in Product Design and Manufacturing

The fraction of the production capacity lost due to defects is 1 — TY. For example, consider the manufacture of a device involving 40 steps, each of which operates at 4ct. From Table 19.1, the expected DPMO are 6,210 per step, so TY = (1 - 0.00621) ° = 0.779. Thus, 22% 

As described in detail by Rath and Strong (2000), an iterative five-step procedure is followed to progressively improve product quality. The five steps are (a) Define, (b) Measure, (c) Analyze, (d) Improve, and (e) Control, referred to by the acronym, DMAIC  

ACME Tubes, Inc. ACME Tubes, Inc. Customer A Customer B 

Load PVC Activate Adjust Extrude Cool Quality Pack and 

Pellets Heating Settings Tubes Tubes Check Ship 

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