ALUMINUM CASTING DEFECT INVESTIGATION WORKSHEET
Bohua Casting | Version: 2026-09-24
Guide: https://www.bohua-casting.com/blog/common-aluminum-casting-defects-causes-solutions

Record observations before assigning a cause. This blank worksheet is not an
acceptance standard, a customer case study or approval to repair a casting.

1. IDENTIFY THE PART AND REQUIREMENT
Part number / drawing revision:
Alloy / temper / casting route:
Tool / cavity / heat / lot / date identifiers available:
Manufacturing stage when the issue was found:
Drawing zone and failed requirement / acceptance document:

2. RECORD THE OBSERVATION
Symptom, size, location and distribution:
Photograph reference with scale / indication or measurement record:
Detection method / procedure / equipment reference:
Test conditions, fixture, datum or measurement state:
Number examined / number affected / population under review:
Known acceptable comparison part or lot:

3. CONTAIN AND VERIFY
Containment scope / owner / date:
Hypothesis A and evidence needed:
Hypothesis B and evidence needed:
Verification method / sampling / responsible person:
Verification result and retained record:
Cause confirmed? Which evidence supports that conclusion?

4. AGREE ACTION AND DISPOSITION
Corrective action and controlled process change:
Repair or impregnation proposed? Written buyer approval reference:
Disposition of affected parts and approving authority:
Validation sample / lot and acceptance basis:
Validation result and record:
Control-plan change / monitoring owner:
Closure approved by / date:

For review: linda@ningbobohua.com
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