PRU-104Heuristic screen

Extruded hole spacing

Scope and limits

Extruded hole (Durchzug) to edge >= 3 t and hole-to-hole >= 6 t.

No standards reference is assigned to this check. The scope described above applies.

Sheet metal · CC0-1.0

Model example

Two Ø4 mm extruded holes (3 mm collars) in 2 mm sheet leave only 3 mm between their bores; about 6 x the sheet thickness is recommended.

Dimensions (approx.): 70 × 40 × 5 mm

Expected check result

PRU-104 should warn about the hole spacing; both collars are detected as extruded holes.

Finding expected

Sheet metal · CC0-1.0

Model example

The same two Ø4 mm extruded holes, with 30 mm center-to-center spacing.

Dimensions (approx.): 70 × 40 × 5 mm

Expected check result

PRU-104 must stay silent: the hole spacing is well above 6 x the thickness.

No finding expected