Press fit between plastic parts

[New_designer]

hello,
i want to design press fit between two plastic parts and materail is PP.please tell me how much max and min interference is allowable.And also tell me how much tolerance i can achieve.

 

[btrueblood]

Google is your friend; start with:

http://www.tangram.co.uk/Design Guides for Plastics.PDF

and

https://www.engineersedge.com/plastic/plastic_press_fit.htm

amongst others (like pp molding guidelines from resin suppliers).

After doing your homework, go talk to the molding shops and/or mold tooling designers.