Quality Control
External Appearance Quality Control Range
Milling Face | ||
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Untreated surface | ||
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- 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.
- Hanging marks and electrode contact marks from surface treatment may remain on the product.
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.
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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
Engraving quality assurance coverage
Processing method
Engraving will be done by either Laser Engraving 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 distorted.
- 3. Depending on the material and surface treatment, the engraved characters may become thinner.
- 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:304 Stainless Steel)
- Machining engraving
- (Material:304 Stainless Steel)
With surface treatment
- Laser engraving
- (Material:5052 Aluminum Alloy)
- *With Black anodize
- Machining engraving
- (Material:5052 Aluminum Alloy)
- *With 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. |