EXIN LSSA Green Belt Practical case studies
EXIN LSSA Green Belt Practical · Put your knowledge to work in context.
The EXIN LSSA Green Belt Practical is a Lean Six Sigma certification listed under the EXIN certification catalogue. The name indicates a Green Belt level credential with a practical emphasis: Green Belts typically lead improvement projects inside their own work area while applying DMAIC logic, basic statistics, and Lean tools under the guidance of a Black Belt or Master Black Belt. The EXIN LSSA Green Belt Practical case studies are 5 cases and about 3,751 words.
1Bore Gauge MSA: Calibrated but Not Capable
A Green Belt in a bearing plant is chartered to cut bore scrap from 6.0% to 2.0%. The bore diameter specification is 25.000 ± 0.020 mm.
615 words, about 3 min2Bimodal Capability in an Eight-Cavity Mold
An injection molder produces a 12 mm retention clip from an 8-cavity tool; specification is 12.00 ± 0.15 mm. The Green Belt collects 200 consecutive parts over one shift, records the cavity number for each, and plots an Xbar-R chart using subgroups of 5 parts taken in sequence.
801 words, about 4 min3Second-Source Filament: A Non-Significant Result Is Not an Approval
A procurement-led project is evaluating a second source for nylon filament used in a safety strap. The drawing requires tensile strength of at least 45 N.
596 words, about 3 min4Resolution IV Screening on a Wave-Solder Line
A Green Belt is screening four factors to reduce bridging defects on a wave-solder process: A preheat temperature (100/120 °C), B conveyor speed (0.9/1.2 m/min), C flux density (0.80/0.90 g/cm³), D solder pot temperature (245/260 °C). Budget allows 8 factorial runs plus 3 center points, randomized, with no replication.
841 words, about 4 min5Takt, the Constraint, and a Manager's Wish List
A packaging line supplies 480 cases per shift to a customer on daily delivery. Net available time is 450 minutes per shift after breaks and planned maintenance.
898 words, about 4 min