Page 147 - BlueFastening-Systems_Brochure_07192017

Fitting recommendations
for ductile plastics

Core hole diameter recommen-
dations for plastics1)

Applicable to centre collar variant
(TriPress®-MB) and the head variant
(TriPress®-K)

Core hole recommendation for cast holes.
Max. draft angle a = 1 °

TriPress® PA PA6 PP ABS PC-ABS PC PE PPO PMMA
nom. Ø d Core-hole Ø B in mm
Ø C [mm] 2.50 2.50 2.60 2.60
3.00 3.00 3.00 3.00
2.8 2.90 2.50 2.50 2.50 3.50 2.60 2.60 3.45 3.50 3.50
4.30 3.10 3.00 4.30 4.30 4.40
3.3 3.40 3.00 3.00 3.00 5.10 3.50 3.50 5.00 5.10 5.10
7.10 4.30 4.40 7.00 7.10 7.10
3.7 3.80 3.45 3.50 3.45 5.10 5.10
7.10 7.10
4.6 4.80 4.30 4.35 4.20

5.4 5.60 5.00 5.10 5.00

7.4 7.60 7.10 7.20 7.10

Core hole depth K min = max press-in depth X + 1 mm

Recommendation for determining the For medium tensile stress and medium torsion stress: Rapid
design TriPress® TriPress® with circumferential locking flutes and axi- Fastening
ally parallel knurls in hardened and tempered version
For high tensile stress and low torsion stress: (strength class 10.)
TriPress® with locking flutes only, in hardened and Recommended press-in depth X: 2.0 - 3.5 x nominal Ø d
tempered version (strength class 10.9)
Recommended press-in depth X: 2-4 x Nominal Ø d 1) The above dimensions are merely guidelines, based principally on
theoretical calculations. It is therefore important that you carry out
For low tensile stress and high torsion stress: the relevant laboratory trials using production parts in order to
TriPress® with axially parallel knurls only, hardened and determine the precise parameters (clinching and press-out forces),
tempered (strength class 10.9). core hole diameters, torsion moments etc.)
Recommended press-in depth X: 1.5 - 2.5 x Nominal Ø d

wwwww.war.naornldo-lfda-sftaesnteinngin.cgo.cmom 147 07