Abstract :
This research aims at quality measuring of steelfast trusses production
process at PT. Kuda-kuda Total Prima based on Six Sigma concept. The study
also indentifying divergences or defects of production processes. Each of the
divergences has found will informated to the company as recommendations for
process improvement.
The research using cutting detail, roof layout, trusses detail and some of
steelfast trusses production procedures as instrument for identifying data. Study
obtains data with observations. The observation divided based on production
places, they are fabrication and installation process. Total of data has collected are
1575 point, they are 514 point of materials, 288 point of joints, 65 point of
stationings, 210 point of splices and 288 point of bracing.
Result of the study show 255 data that idenficated as defect. Defect just
occur at joints, splices, and bracing. Number of defect are equivalent 161904,76
DPMO (Defect Per Million Opportunities). This result able to applicated on
sigma level, and then get the quality measuring of steelfast trusses production
process achieve 2,6 sigma.