Lysander Quillbrook-Tetteh

Run three Flow Mach 500 AWJ tables (60,000 psi) cutting 7075/2024 aluminum, 17-4 stainless, Ti-6Al-4V, and CFRP skins for aerospace tier-1 customers, holding ±0.003 in on 98.7% of first articles. Rebuilt nesting templates in SigmaNEST with common-line cutting and remnant tracking, raising sheet utilization from 71% to 86% and saving ~$148K/yr in plate stock. Tuned abrasive flow (garnet 80 mesh), stand-off, and taper compensation per material, cutting secondary deburr time 40% and scrap 31% year over year. Raised cell OEE from 68% to 84% via standardized changeovers, nozzle/orifice PM schedule, and shift-start pressure checks; mentor 4 operators. Lead AS9100 first-article inspections with calipers, micrometers, height gauge, and CMM reports; zero customer escapes in 30 months.

Operated OMAX 80X and MAXIEM 1530 waterjets on 2nd shift, cutting 0.040–6.0 in steel, aluminum, granite, and HDPE for ag-equipment and HVAC OEMs. Programmed parts in IntelliMAX Layout/Make from DXF prints, applying kerf offsets and lead-in strategies that lowered rework from 4.2% to 1.1%. Cut average job setup from 38 to 22 minutes by building fixture kits and a material-thickness quick-reference board. Maintained high-pressure pump (intensifier seals, check valves, orifices), extending seal life 25% and lowering unplanned downtime 18 hrs/quarter.

Loaded and unloaded 4x8 and 5x10 plate using overhead crane and forklift, staging up to 45 sheets per shift with zero material damage incidents. Deburred, measured, and bagged cut parts to traveler specs; earned promotion to waterjet trainee after 9 months. Assisted operators with garnet hopper refills, tank sludge removal, and catcher-tank water quality logs supporting 99% table uptime. Completed OSHA 10 and in-house lockout/tagout training; kept 5S audit scores above 92%.

GPA 3.6/4.0; coursework in blueprint reading, GD&T, CNC programming (G-code), CAD/CAM, and metrology. Capstone: designed and waterjet-cut a nested aluminum fixture plate set that reduced lab setup time 35%.