Sample · fictional example
Engineering Problem Assessment
Problem description
A welded bracket does not seat consistently on its mounting plate during final assembly. Operators sometimes ream or slot the holes to fit the bolts, which adds time and varies between builds.
Information supplied
- Three photographs of the bracket fitted to the plate (fictional sample)
- PDF drawing of the bracket, revision B (fictional sample)
- Operator description of the assembly sequence
Preliminary observations
- Both mounting holes are dimensioned from the bracket edges rather than from a common datum.
- The holes are drilled before welding, and the photographs suggest some distortion near the weld.
- No locating feature controls the bracket’s position on the plate before the bolts go in.
Possible contributing factors
- Weld distortion moving the hole positions
- Tolerance stack-up between edge-referenced holes
- Assembly sequence that relies on the bolts to locate the part
Improvement options
Recommended next step
Measure the hole positions on ten brackets before and after welding to confirm whether distortion or the drawing tolerances dominate, then develop the matching option.
Additional verification needed
- Hole-position measurements on a sample of parts
- Check of the plate’s own hole positions
- Confirmation of the weld sequence used
Assumptions and limitations
- Based only on the information supplied and a 30-minute discussion; no parts were inspected.
- Findings are preliminary and are not certification or design sign-off.
- Options need verification before implementation.
Possible follow-on work: Jig or Fixture Concept Package, or a Drawing and CAD Update.