The DIN 509 standard provides a blueprint for creating relief grooves—recesses cut into the inner corner of a rotationally symmetric workpiece. These are essential for allowing mating parts to sit flush against a shoulder or for providing clearance for subsequent grinding or threading tools. Specification Description Used for workpieces with one machining surface. Radius (r) 0.6 mm The curvature of the undercut base. Depth (t1) 0.2 mm The penetration depth into the workpiece material. Machining Allowance (z) Standardized
: Specifies an undercut for workpieces with a planar surface and a cylindrical surface (typically a shaft shoulder) where no high demands are placed on the fatigue strength of the shoulder. ) of the undercut is 0.6 mm. ) of the undercut is 0.2 mm. Application & Context Manufacturing Use
You must purchase the document from an authorized standards distributor: din 509e06x02 exclusive
: Many DIN standards relate to engineering, materials science, and technology. For example, DIN standards cover areas such as bolts, nuts, and other fasteners, as well as tolerances, fits, and surface finish.
: Meeting such a high bar for quality and performance inherently addresses safety concerns and regulatory compliance. The DIN 509 standard provides a blueprint for
: Customers and end-users can have greater confidence in the products they purchase, knowing they meet highly stringent criteria.
This size is generally recommended for workpieces with diameters over 10 mm up to 18 mm Comparison with Other Types Din 509-Relief Grooves | PDF | Machining - Scribd Radius (r) 0
Manually calculating and sketching undercuts on engineering drawings is obsolete. Today, the profile is integrated directly into advanced manufacturing ecosystems: Undercut TableDIN 509 | PDF | Machining - Scribd