Adhesive Bead Inspection Selection Guide
Choose adhesive bead inspection by comparing your parts, process, rate, access, data needs and required results.
Compare adhesive bead inspection proposals using the same part drawings, decision limits and good, bad and marginal samples. Ask each supplier to explain which visible decisions are covered, the tested conditions and any unresolved cases.
Compare the complete production duty: presentation, timing, recipes, part-result association, uncertain-result handling, acceptance records and support. Retain separate tests for properties the image cannot establish.
Give suppliers the same challenge set
An attractive image alone is not a like-for-like comparison. Use an agreed set of bead-path, width, position and handling challenges so differences in scope, tested conditions and remaining assumptions are visible.
Discuss your application
Ask every supplier the same questions
| Decision | What to ask | What to check |
|---|---|---|
| Continuity, width and position | Which separate bead decisions are covered, and how are the agreed boundaries applied? | Expected versus observed results on the same labelled samples. |
| Sample range | Which accepted, failed and marginal parts were included? | Part/recipe references, sample conditions and unresolved examples. |
| View, lighting and timing | Can the required properties be seen at the intended inspection point and timing? | Optical trial records and stated limits under relevant production conditions. |
| Part and recipe association | How is each result matched to the correct part and selected recipe? | Agreed triggers, interfaces and changeover/fault challenges. |
| Rejects and uncertainty | What happens to rejected, missing or uncertain results? | The actual hold/reject response and controlled recovery evidence. |
| Acceptance and support | What tests, records, documents and training are included? | An agreed acceptance plan, responsibilities and any exclusions. |
Include simpler approaches to adhesive bead path and continuity in your shortlist
| Approach | Often suitable when | Watch for |
|---|---|---|
| Camera-based adhesive bead inspection | Several visible decisions must be checked together: continuity, width, path position or excess adhesive on a defined part. | Prove visibility and repeatability with realistic good, bad and marginal samples; match each result to the part and handling response. |
| Purpose-built presence or position sensors | The required decision is simple and repeatable, with a suitable sensing point and stable part presentation. | Check the actual decision boundary and fault cases; a simple presence result does not establish every bead dimension or bond property. |
| Offline metrology or destructive tests | The required property is hidden or cannot be established by an in-line image, such as a separate dimensional or bond test. | Agree the test method, sample selection and records. Keep these checks alongside visual inspection when the product needs both. |
Pause before choosing when…
- Only perfect or hand-selected examples of in-line inspection using adhesive bead path and continuity are available.
- No one has defined how false-accept, false-reject and challenge criteria will be evaluated.
- The normal range for visible defect or measurement definition for adhesive bead path & continuity is described only as “usually fine” but has not been bounded.
- Your operator, cleaning, maintenance or recovery access has not been considered.
- Quoted performance depends on another machine or data source that is not included.