, the code breaks down into three critical technical components: : This indicates the shape of the undercut. Form E is a single-surface relief groove
The depth (t₁) and radius (r) are critical dimensions to verify for proper assembly clearance.
Let’s run a typical calculation for a medium-sized run of 10,000 brass faucet levers (surface area ~15 cm² each).
For this specific size, the standard typically specifies the following additional dimensions to ensure proper tool clearance: Value (mm) Depth Breadth (Width) Run-out Angle 15° (Standard for Type E) Application Guidelines Workpiece Diameter ( din 509e06x02 exclusive
: The standard governing undercuts for turned parts and bores.
Unfortunately, I couldn't find a publicly available copy of the standard or a detailed description of its contents. However, I can suggest some possible areas where this standard might be relevant:
Unlike Type F undercuts (which have two transition radii), the is used when only the longitudinal surface needs to be ground. It is the "minimalist" choice for engineers who want maximum strength with minimum material removal. , the code breaks down into three critical
To understand a callout on a blueprint, it must be dissected into its standard engineering parameters:
Omitting a proper tool relief groove on stepped shafts can induce microstructural failures. Incorporating a standardized profile offers several key engineering benefits:
For junction boxes on oil rigs (Zone 2 hazardous areas), M6 screws require 240+ hours of salt spray but cannot have thick zinc (which would crack due to vibration). The exclusive X02's flexible ceramic-polymer hybrid solves this. For this specific size, the standard typically specifies
Components manufactured on different sides of the world will fit seamlessly during assembly.
This form specifies a single-sided undercut carved into the cylindrical face of the shaft while extending slightly into the perpendicular planar shoulder. Type E undercuts are ideal when the flat shoulder does not face extreme cyclic fatigue loads, and when subsequent grinding or finishing operations are required on the outer diameter. 06 (Radius = 0.6 mm): The cutting radius (