The designation refers to a specific type of relief groove (also called an undercut) used in mechanical engineering for turned parts and bores. These grooves provide clearance for subsequent machining tools (like grinding wheels) and ensure mating parts can sit flush against a shoulder. Specification Details
If a supplier claims , demand proof. Below is the standard test suite: din 509e06x02 exclusive
However, without a direct reference or more context, it's challenging to provide a detailed write-up on this specific designation. Nonetheless, I can offer a general approach to understanding what such a designation might imply and how one might go about writing about it. DIN 509 E 0
Conventional wisdom says "thicker is better." But for decorative chrome on indoor components, proves otherwise. The microporous design means a 6µm exclusive coating can outperform a 12µm conventional duplex nickel-chrome in neutral salt spray (NSS) testing by a factor of two. Below is the standard test suite: However, without
: On a professional blueprint, you would see it labeled as Undercut DIN 509 – E 0.6 x 0.2 . Forms and dimensions of undercuts
| Old DIN | Current ISO/EN | Notes | |---------|----------------|-------| | DIN 509E06X02 | ISO 2081 – Fe/Zn 6 / C (blue) | C = chromate passivation, blue | | Thickness 6 µm | Now often 5 or 8 µm standard | 6 µm is less common now | | X = single layer | Implicit in ISO 2081 | No undercoat |
Electroplated coating, 6 µm thickness, single layer (likely zinc), with type 2 chromate passivation (blue-bright).