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

	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.
Suspension marks and electrode contact marks from surface treatment may remain on the product.
The color of the surface-treated product is not guaranteed.
The exact color spec cannot be specified using Munsell or RAL values.
Color may very, even among products with the same material and surface treatment.

Example of Red anodizing

Example of Gold anodizing

Please refer to the pictures on the left for the color of Red and Gold anodized products.

Inspection Item

Inspections are Carried Out at Each Work Stage and Before Shipment

Dimensional tolerance inspection

Using a micrometer

Fit tolerance inspection

Using a limit plug gauge

Geometric tolerance inspection

Measurement method: Measure at multiple points using a dial gauge, feeler gauge, height gauge, etc. on a surface plate.
*Specifying the measurement method or providing an inspection certificate is not available.

Screw inspection, etc.

ISO2-grade (JIS B 2025) equivalent Bolts pass through in principle.

Appearance inspection

Inspection with roughness standard specimen,dot gauge,and roughness tester.

Dimensional Assurance Range

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

Entrance chamfer is 0.1 to 0.5 mm or less.

Ensure the specified geometric tolerances

Specified values are guaranteed per 100 mm.
i.e., If a flatness of 0.05/100mm is specified

– The geometric tolerances for a 100 x 100 plot surface area is considered above

Quality inspection during engraving

Processing method

“Engraving is done either by “laser cutting” or “machining”.
*The processing method cannot be specified

Quality precautions for engraving

1. There may be burrs or burns on the engraved area.
2. If the font size is 3~5mm, depending on the characters, there may be insufficient space between the characters or the characters may be crushed.
3. Depending on the material and surface treatment, the finish of the engraving may be lighter.
4. The “font size and angle” on the engraving are approximate values. Dimensional accuracy is not guaranteed.
5. Depending on the text content, the size may differ from the specified size.
6. Depending on the total length of the engraving, discrepancies in character spacing and height may occur (guideline: length 90mm or more)

Example of engraved surface

No surface treatment

Laser engraving
（Material：EN 1.4301 equiv.）

Engraving by machine
（Material：EN 1.4301 equiv.）

With surface treatment

Laser engraving
（Material：EN AW−5052 equiv.）
*Black anodize

Engraving by machine
（Material：EN AW−5052 equiv.）
*Clear anodize

Packaging

Interior		Exterior
Product packaging	Simple 2D diagram	Multiple	Single

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.