Plastic Product Design\Snap-fitting hook Calculations

Snap-fitting hook Calculations

 

This calculation is for a
Snap-fitting hook of rectangular cross section with a constant decrease in thickness from h at the root to h/2 at the end of the hook should be used whenever possible to permit greater deformation and to save material

 

     Determination of wall thickness (h)

Determination of deflection force (P)

Determination of mating force (W)

Find we Have to find the Friction coefficient (μ) from Table

Determination of mating force (W) = 

Select the value from below table 

Determination of mating force (W) =  32.5 x 1.8 = 58.5  Newton.