- #1
Meesh Bono
- 2
- 0
I have taken over a project halfway through (which is never an easy thing), and I need to get a threaded insert to place inside a steel piece that a threaded rod will move through. The original person working on the project wanted to get Acme threading on the inside of the insert and standard threading on the outside of the insert. The rod has Acme threading and is made from carbon steel.
I am wondering why the insert needs to have Acme threading on the inside though? The original guy thought it would be able to withstand more force, but if the outside thread is standard thread than does it really matter what the inside thread is? If the outside thread can only take so much force before it fails then it won't matter how much force the inside thread can take right?
Is there a force equation I can use to calculate when the threading will fail on the inside and outside of the insert? Maybe I can get a standard threading on both sides of the insert instead of trying to find a custom product.
Also, I've had another engineer tell me the insert should be made of bronze because he thinks the assembly will bind. But I thought the insert should be made from the same material as the main parts and the threaded rod (which is steel or carbon steel).
Any advice will help, I'm an electrical engineering student with a mechanical job!
Thank you!
Meesh
I am wondering why the insert needs to have Acme threading on the inside though? The original guy thought it would be able to withstand more force, but if the outside thread is standard thread than does it really matter what the inside thread is? If the outside thread can only take so much force before it fails then it won't matter how much force the inside thread can take right?
Is there a force equation I can use to calculate when the threading will fail on the inside and outside of the insert? Maybe I can get a standard threading on both sides of the insert instead of trying to find a custom product.
Also, I've had another engineer tell me the insert should be made of bronze because he thinks the assembly will bind. But I thought the insert should be made from the same material as the main parts and the threaded rod (which is steel or carbon steel).
Any advice will help, I'm an electrical engineering student with a mechanical job!
Thank you!
Meesh