Requirement
State what the complete solution must achieve for in-line inspection using profile and surface inspection of extrusions, including your production pattern and who will review the result.
Industrial machine vision
Extrusion Inspection Specification Checklist
Use this practical checklist to describe your requirements for extrusion inspection around representative good, bad and marginal samples under real line presentation, line connections and required results.
A useful specification for extrusion inspection describes your operating range, line connections and required results while leaving room for the supplier to propose the best method.
Use this checklist for in-line inspection using profile and surface inspection of extrusions and separate confirmed facts, realistic ranges and items that need a trial.
On the production floor
Describe what the complete process needs to achieve — Extrusion Inspection
Plan extrusion inspection around representative good, bad and marginal samples, line presentation, lighting, reject handling and challenge criteria. Discuss an optical feasibility trial with Oxford Vision Systems. A clear brief should state the operating range for visible defect or measurement definition for profile & surface inspection of extrusions and your requirements for false-accept, false-reject and challenge criteria.
Discuss your application
Your checklist
Application, operation and results
Product, part or pack
Operation and interfaces
Results and support
Write measurable requirements
For Extrusion Inspection, turn each checklist item into a range and a test
Range
Record normal and credible extremes for visible defect or measurement definition for profile & surface inspection of extrusions, good, bad and marginal sample range and part presentation and production speed; avoid relying on one nominal value.
Check
Define representative examples from in-line inspection using profile and surface inspection of extrusions, the method, repetitions, acceptable range and result record so you and the supplier share the same expectation.
For extrusion inspection, use “shall” only for a requirement that can be demonstrated. Keep preferences, assumptions, provisional line connections and future options clearly separate.
Connected responsibilities
Be clear about what sits around your extrusion inspection
Your final extrusion inspection scope must also account for recipe, reject and line-control interfaces, false-accept, false-reject and challenge criteria, current regulations and the conditions at your site.
- A camera can only assess a property made visible and repeatable by the inspection setup.
- Sample diversity and marginal cases determine how meaningful a feasibility result is.
- Visual inspection does not replace hidden, destructive, functional or statutory tests.