Engineer Quality Management case studies
Engineer Quality Management · Put your knowledge to work in context.
Engineer Quality Management (EQM) is a professional credential for engineers who own quality outcomes rather than merely inspect them: manufacturing, design, process, supplier, and quality engineers moving into roles where they set standards, prove capability, and drive corrective action. The exam tests applied judgement across nine domains, from quality management systems and standards through strategic quality planning, statistical process control and process capability, measurement systems analysis, design of experiments, root cause analysis and CAPA, supplier quality, auditing and compliance, and Lean Six Sigma improvement. The Engineer Quality Management case studies are 5 cases and about 4,555 words.
1Recurring Adhesive Bond Failures: Challenging an Operator-Error 8D
Over eight weeks a Tier-1 automotive supplier has seen adhesive-bond failures on a stamped steel bracket rise from 0.2% to 0.8% at end-of-line peel test. The 8D report lists root cause as 'operator did not follow the wipe procedure' and corrective action as 'retrained both operators on work instruction WI-447.' Three months later the failure rate is 1.1%.
902 words, about 5 min2Capability Index Discrepancy and an Out-of-Control Grinding Process
A CNC grinding cell produces a bearing bore specified as 25.000 ± 0.050 mm. Control is an X̄–R chart with n = 5 and k = 25 subgroups taken over three days.
916 words, about 5 min3Screening Six Molding Factors in Eight Runs with a Hard-to-Change Tool Insert
An injection-molding team must reduce warp on a glass-filled nylon housing. Warp is measured in mm, lower is better; the current mean is 0.42 mm against a specification maximum of 0.30 mm.
892 words, about 4 min4Overdue Plug Gauge Calibration and Retrospective Product Risk
During an internal ISO 9001:2015 audit of a medical-device contract manufacturer, the auditor finds that three of twelve go/no-go plug gauges used on a catheter hub (Ø 4.00 ± 0.02 mm) have calibration stickers expired by four months. The calibration vendor's records show the gauges were last verified 16 months ago against a 12-month interval.
951 words, about 5 min5Incoming Coplanarity Failure, a 35% GRR, and a Line-Down Deadline
A dock-to-stock program accepts a 50,000-piece lot of board-to-board connectors on the supplier's Certificate of Analysis plus a 30-piece incoming sample. Incoming inspection measures coplanarity with a new automated vision system; 4 of 30 parts exceed the 0.10 mm maximum, reading 0.12–0.15 mm.
894 words, about 4 min