Quality Control

External Appearance Quality Control Range

Milling Face
  • EN 1.0038 equiv.
  • EN AW−5052 equiv.
  • EN 1.4301 equiv.
Untreated surface
  • EN 1.0038 equiv.
  • EN AW−5052 equiv.
  • EN 1.4301 equiv.
  • No hooks and a dot gauge guarantee of scratches of 0.7 mm or smaller.
  • Surface roughness: √Ra6.3 [√Rz25]
  • Depending on the material and size, the product may be shipped with an untreated surface (polishing and rolling).
Surface Treatment
Suspension method image Surface treatment suspension and electrode contact marks
Suspension method image Anodized aluminum (black) Anodized aluminum (white)
Anodized aluminum (black) Anodized aluminum(clear)
  • Since film thickness management is difficult for small diameter precision holes, etc., additional machining may be carried out after processing, and as a result, the surface treatment may not remain on the cutting surface.
  • Surface treatment suspension and electrode contact marks may remain on the product.

Inspection Item

Inspections are Carried Out at Each Work Stage and Before Shipment
Dimensional tolerance inspection Fit tolerance inspection Appearance inspection Screw inspection, etc.
Using a micrometer Using a limit plug gauge Inspection with roughness standard specimen, dot gauge, and roughness tester. ISO2-grade (JIS B 2025) equivalent Bolts pass through in principle.

Dimensional Assurance Range

Corner chamfering
Corner chamfering Corner chamfering

For sharp corners (C0.5 mm and smaller), the external corner chamfer tolerance is C0.1 mm to 0.5 mm, and the internal corner radius tolerance is R0.5 mm or less.

Chamfering unspecified hole entrances
Corner chamfering Corner chamfering

Entrance chamfer is 0.1 to 0.5 mm or less.

Quality inspection during engraving

Processing method

“Engraving is done either by “laser cutting” or “machining”.

Quality precautions for engraving

  • Burrs and burns may occur in the engraved area.
  • – Some characters may be dented if you specify an engraved character size of 3 to 5 mm.
  • – Depending on the material and surface treatment, there is a possibility that the engraved characters may become lighter.

Example of engraved surface

No surface treatment

  • Laser engraving
  • （Material：SUS304）
  • Engraving by machine
  • （Material：SUS304）
With surface treatment
  • Laser engraving
  • （Material：A5052）
  • Engraving by machine
  • （Material：A5052）

Packaging

Interior Exterior
Product packaging Simple 2D diagram Multiple Single
Individual packaging Multiple item packaging Small item packaging
Includes simple 2D diagrams 2 layers of bubble wrap around each side The product label will be affixed to the outside before sending. Sent in a box or bubble wrap bag.

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