Manufacturing Output

Quality Control (QC) Checklists: The Final Integrity Gate

Design excellence is realized only when verified against rigorous physical standards. Edelweis implements QC Checklists as a systematic barrier against non-conformance, ensuring every manufactured part matches the digital "Single Source of Truth." These checklists are derived directly from GD&T and CTQ requirements.

1. Dimensional Inspection (Metrology)

We transition from virtual to physical verification using precision measurement protocols:

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CTQ Feature Audit: Mandatory inspection of dimensions marked as "Critical-to-Quality" in Technical Drawings.
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DRF Verification: Confirming measurements originate from primary, secondary, and tertiary datums defined in the GD&T Strategy.
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Thread & Fit Verification: Physical "Go/No-Go" gauge testing for Limit & Fit callouts and threads.
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First Article Inspection (FAI): Comprehensive dimensional reports to validate CAM accuracy before mass production.

2. Material & Surface Integrity

Verification that the physical component possesses the exact "DNA" defined in our Material Library:

Material Cert (MTR)

Verification of mill test reports against specified ASTM/ISO grade and temper.

Surface Testing (Ra)

Profilometer measurement to ensure finish matches the Technical Drawing Standard.

Hardness & Coating

Rockwell/Brinell testing and NDT audit of anodizing or passivation layers.

3. Assembly & Functional Performance

QC Phase	Test Procedure	Objective
Component Fit-Check	Worst-case interface verification.	Validating the Tolerance Stack-up Analysis.
Fastener Torque Audit	Calibrated torque verification.	Ensuring Safety Factors and clamping loads are achieved.
Motion Sweep	Full range-of-motion cycle.	Confirming Mate Controller logic and clearance zones.
Leak/Pressure Test	Hydrostatic or pneumatic testing.	Validating Pressure Vessel and seal integrity.

4. Non-Conformance Management (NCR)

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Deviation Grading: Categorizing errors into Reworkable, Use-As-Is (requires re-validation), or Scrap.
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Root Cause Analysis (RCA): Investigating if failures originated in DFM, CAM strategy, or vendor error.
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Digital Sign-off: Checklists are timestamped and stored in the TDP for full Traceability.

Technical Directives

Directive	Protocol
Calibration Lock	All measurement tools must have valid calibration certificates per V&V Standards.
Visual Standards	Cosmetic inspection must be performed under D65 standardized lighting.
Independent Verification	QC technicians must be independent of the manufacturing team to ensure zero bias.