Detection of embryos of engraved round metal logo-A
For the inspection of “Engraved Round Metal Logo Embryo”, it is necessary to systematically evaluate the key dimensions such as dimensional accuracy, engraving quality, surface integrity, material properties and functionality, etc. The following are the specific inspection points and analysis:
Metal logo dimensional and shape accuracy inspection
Inspection content
Whether key dimensions such as outer diameter, inner diameter (if any), thickness, etc. meet the design tolerance.
Whether the roundness, flatness and other shape and positional tolerances meet the standards.
Metal logo inspection method
High-precision dimensional inspection using coordinate measuring machine (CMM) or optical image measuring machine.
Verify roundness and surface profile by roundness meter or laser scanner.
Importance
Dimensional deviation may lead to subsequent assembly difficulties or affect the visual effect of the sign, which needs to be strictly controlled.
Metal logo engraving quality inspection
Inspection content
The clarity, depth consistency and edge sharpness of the engraving pattern.
Integrity of the text or pattern (no broken strokes, missing corners).
The smoothness of the transition between the engraved area and the unengraved area.
Inspection Method
Visual inspection (in conjunction with a magnifying glass or microscope) to assess detail.
Measure depth of engraving and surface roughness using a laser confocal microscope or white light interferometer.
Importance
The quality of engraving will affects the legibility and aesthetics of the logo, and needs to be confirmed to meet the design requirements.
Surface Integrity Inspection
Detection content
Whether there are scratches, pits, oxidized layer and other defects on the surface.
The bonding strength between the engraved area and the substrate (no skinning, peeling).
Detection method
Scanning for surface defects visually or with the help of automatic optical inspection (AOI) equipment.
Verify the bonding strength of the engraved layer to the substrate by adhesion test (e.g. tape tear test).
Importance
Surface defects can degrade the product, and insufficient bond strength may cause the logo to peel off during use.
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