Inspection Reports and Test Evidence Explained
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A hardness number without the scale, an impact report without the test temperature, a salt-spray result quoted in hours as if it predicted years — all of these look like evidence and prove less than they appear to. This page explains how to read the reports that come with forged and rubber parts, and what to ask when one is missing.
Choosing and matching
Start here when you are specifying a part. The questions these articles answer decide the part number before price enters the conversation.
- Compare rubber abrasion reports under the same test method
- Choose between in process and pre shipment inspection
Materials, hardening and manufacturing
Forging, heat treatment and hardness decide how a part behaves under load. These articles explain what the specifications actually buy.
Wear, failure and what causes it
What wears a component out, how to read the wear before it becomes a failure, and when replacement stops being optional.
- Technical cleanliness reports for machined parts read the limits
- Cpk and ppk in a supplier report check the data before the number
- Grinding burn inspection on hardened parts check method and scope
- Review an 8d response for undercarriage parts failures
- What go and no go thread gauges actually check?
- A measurement near the tolerance limit is not a simple pass
- Check a calibration certificate and the laboratorys scope
- Build an inspection and test plan with clear hold points
Articles that sit alongside the main sections above.
- Verify a test report with the laboratory that issued it
- Read a heat treatment chart against the agreed process
- Tensile strength elongation and tear resistance in rubber reports
- Use gage r amp r to investigate inconsistent parts measurements
- Ozone aging and heat aging answer different rubber questions
- Ra and rz on a parts report read the measurement conditions
Related
How to Inspect and Accept Undercarriage Parts · All undercarriage parts guides