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How to determine the strength of a plastic staking joint

Design engineers commonly ask me, “How strong will my staked joint be?” Usually, they are designing a plastic assembly that needs to be staked, and they need to know how to design the part so that it will be strong enough for their application. They are looking for a straightforward answer, like 450 N. If they know how strong one stake point will be, they can plan how many stake points they need and where to locate them. The good news is that we can estimate the answer...

The Assembly Show 2016

Come visit us in booth 1823 at the Assembly Show in Rosemont, IL this year. Show dates are October 25-27, 2016. We will be performing live demonstrations of hot-plate welding, spin welding, infrared staking, and infrared welding. We hope to see you there!

Why is my plastic sticking during the staking process?

This question has been posed to me by many customers. I hear statements like, “The machine works great for a long time, and then we suddenly get all of this sticking and stringing.” This issue is somewhat common in most types of staking technologies and varies in severity among different thermoplastic materials.

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