Press Fit Question
Press Fit Question
(OP)
Have used several calculators ,formulas and other threads from this forum to determine the force required to press fit a pin in to a block of material.
Every formula and calculator requires the diameter of the disk or hub. I am inserting the pin into a rectangular block. I am assuming the outer diameter to be the distance from the hole center to the nearest side.
Is this the best method to determine the outer diameter of is there another method to calculate the force.
Every formula and calculator requires the diameter of the disk or hub. I am inserting the pin into a rectangular block. I am assuming the outer diameter to be the distance from the hole center to the nearest side.
Is this the best method to determine the outer diameter of is there another method to calculate the force.





RE: Press Fit Question
Regards
Dave
RE: Press Fit Question
RE: Press Fit Question
RE: Press Fit Question
As long as you don't need a super-accurate figure, you can use the standard "pressure factor" table in the Machinery's Handbook or look here:
http://
Hope this helps.
Don
Kansas City
RE: Press Fit Question
The hole in the block is round.
Don't have access to FEA.
Can't do test as the block is made from Beryllium $$$.
The pin is SS 303 at .0626 diam. I used .243 as the outer diameter. This is greater than 2 times the diameter.
My customer is basing his calculations on the yield strength of the pin only.
His calculations gives an answer of 107 lbs.(Fy* Area of pin) Using the press fit calculator and hand calculations I get 247 lbs.
Don't know which is the better way. His method doen't take in to consideration that Be has a higher modulus and no friction factors.
I reviewed the machinery handbook but it doesn't apply to the materials I am using.
Any more suggestions or thoughts.
RE: Press Fit Question