You would probably go a long way towards a solution if you have access to an Instron or Tinius Olson test machine, then you could run sample lots of different combinations in quick order and let the machine spit out the stress/ strain and load results.
just my 2 1/2 cents
desertfox, I think it'll be okay. The pin is anodized and since the oilite gets its lubrication qualities from the trace leads in it, that should work out. We'll find out today when the guys get it put back together and it gets tested.
20,000 is the maximum rating of the actuator itself, not the loads it's pushing. In fact, it'll be something much less as there are 2 of these actuators in tandem. Oilite was used because it was readily available in our machine shop, it has excellent self lubricating qualities, and when freeze...
It's not something you can stand under..or would want to if you could. And it's a rotating load, not vertical. One end of the system is hinged on a rotating bearing, the other end (actuator side) is pushed into position much like a dump truck bed. 2 actuators run this system and are fitted with...
Yeah, I am worried about the capacity..I've been working the problem using the design capacity of the actuator (20,000lbs) and using a double shear condition for the clevis and pin. I'm thinking that anybody with half a brain would design with a safety factor of at least 1.5 so I'm fairly...
bearing was removed with an arbor press. The piece is either normalized or annealed. I'm only saying this because I know it didn't take much at all to hone out the inner surfaces. The pin is another story. That is a case hardened piece. The other half of the clevis was re-bored for a bushing...
The heating had already taken place courtesy of a blow torch. Not exactly sure of the material type other than some form of mild steel. I'm taking a ballpark number of 50kips for yield of the material. when the heat was taken off the material, it was allowed to cool naturally without any...
If your loads can handle it, think about oilite sae-841 sintered bronze, its self lubricating due to the trace leads in the composition. it's also fairly strong stuff
Hi all..I'm trying to locate a good source of information and formulae for calculating the stresses on mild steel ofter being heated with a torch. The component is a clevis that had a frozen pin that had to be pressed out due to corrosion on the clevis.
Any information is considered helpful...
