Japan, Nippon Kinzoku Denchu
Nippon RAF Surface Roughness Standard Plate for Milling
Made in Japan
Manufacturer: Nippon Kinzoku Denchu
Model: RAF
Feature
- When measuring the surface roughness of workpieces, you have two main methods.
- You can use a mechanical roughness measuring machine to get numerical values.
- Alternatively, you can visually and tactually compare a standard surface roughness plate.
- This plate is pre-made to match the criteria for each processing method.
- You compare it with the actual workpiece to make judgments.
Nippon Metal Electrocasting’s ‘Arasa Standard Plate’ falls into the latter category.
- It serves as a comparative surface roughness standard plate.
- There are both visual and tactile comparisons, but the tactile method seems more accurate.
- Using the tip of your fingernail for comparison provides better sensitivity.
- This approach is widely adopted in production settings.
Specifications
Product type | Roughness standard piece | Processing method | fries |
---|---|---|---|
Quantity | 1 sheet | ▽▽▽▽0.1a | – |
▽▽▽▽0.2a | – | ▽▽▽0.4a | ○ |
▽▽▽0.8a | ○ | ▽▽▽1.6a | ○ |
▽▽3.2a | ○ | ▽▽6.3a | – |
▽12.5a | – | Product name | Ra milling |
Processing method | ▽▽▽▽ | ▽▽▽ | ▽▽ | ▽ | ||||
---|---|---|---|---|---|---|---|---|
0.2a | 0.4a | 0.8a | 1.6a | 3.2a | 6.3a | 12.5a | ||
N4 | N5 | N6 | N7 | N8 | N9 | N10 | ||
Plane | For grinding | ○ | ○ | ○ | ○ | – | – | – |
For shaping | – | – | – | ○ | ○ | ○ | ○ | |
for milling | – | ○ | ○ | ○ | ○ | – | – | |
For face milling | – | ○ | ○ | ○ | ○ | – | – |