Quote:
|
Originally Posted by Swiftech
concur. we've had several blocks in a vise under an estimated 400lbs of pressure for 4 days now. no cracks. Not surprising when one understands that the 0.030 spot is at the apex of an eliptic funnel. A cross-sectional view would show that the thickness increases as one moves away from the apex of the elipse until it reaches the maximum wall thickness of 0.045.
This block may have had a defect in the material in this area, but I can only guess at this point, as the customer never sent his block back for inspection.
|
Quote:
What was the load (ft-lbs) "specified", how many repetitions?
No, I didn't think so. If anyone thought about it it would have an 1/8" minimum radius, because it would have cost nothing to do it right.
|
I should have specified torque, I thought my post made it clear. Squeezing it in a vice is not realistic, much like hammer blows. Posting such stuff is a waste of time.
If you want to demonstrate how strong it is put a 12 1/2" rod 1/2 inch into the opening and apply a load from side to side. Say 25lbs load. (You can impress with 50lbs) How many cycles does it last?