Steel wear factor
Steel wear factor
(OP)
Hello folks,
I'm looking for a specific value regarding any kind of steel but Hardox 400 would be the best. So, I talked to the hardox people. Here is what I asked :
Here are the information on my application :
-It’s the same principle as a plain bearing. It’s a rotating pin with boundary-lubrication. A circular hardox 400 plate oscillates against another circular hardox 400 plate. The equation for calculating the absolute wear life is : t = pi*L*D*w/4*f1*f2*K*V*F where
t : life in hours
L: length
D : Diameter
w : wear
f1 : Motion-related factor
f2 : Environmental factor
K : Wear factor in/((psi)(ft/min)h)
V : linear speed
F : load
I’d like to know the wear factor K for the Hardox 400.
________________________
This formula comes from ''Mechanical Engineering Design'' by Shigley and Mischke. They provide some values for the Oiles, Polyactal, 66 Nylon, Phenol,...etc, but nothing in relation with steel. The only thing Hardox have about the wear is the Relative Wear Method. By comparing the material hardness, they can forecast what will be the hardox plate wear relative to other steels. Thus, assuming I can find the K factor for any kind of steel, a good approx. could be done. Does someone have any value for a well known steel (hardox 400 or scandia 400 if possible)? I can't believe I'm the first person in the world who want to know how long a homemade plane bearing with steel will last! According to Hardox, it seems to be.
Any help will be appreciate.
Thanks,
I'm looking for a specific value regarding any kind of steel but Hardox 400 would be the best. So, I talked to the hardox people. Here is what I asked :
Here are the information on my application :
-It’s the same principle as a plain bearing. It’s a rotating pin with boundary-lubrication. A circular hardox 400 plate oscillates against another circular hardox 400 plate. The equation for calculating the absolute wear life is : t = pi*L*D*w/4*f1*f2*K*V*F where
t : life in hours
L: length
D : Diameter
w : wear
f1 : Motion-related factor
f2 : Environmental factor
K : Wear factor in/((psi)(ft/min)h)
V : linear speed
F : load
I’d like to know the wear factor K for the Hardox 400.
________________________
This formula comes from ''Mechanical Engineering Design'' by Shigley and Mischke. They provide some values for the Oiles, Polyactal, 66 Nylon, Phenol,...etc, but nothing in relation with steel. The only thing Hardox have about the wear is the Relative Wear Method. By comparing the material hardness, they can forecast what will be the hardox plate wear relative to other steels. Thus, assuming I can find the K factor for any kind of steel, a good approx. could be done. Does someone have any value for a well known steel (hardox 400 or scandia 400 if possible)? I can't believe I'm the first person in the world who want to know how long a homemade plane bearing with steel will last! According to Hardox, it seems to be.
Any help will be appreciate.
Thanks,





RE: Steel wear factor
However in the real world it seems that many elements difficult to think of and impossible to quantify may be more important than an elegant formula.
If you have a problem with a specific application it may pay to perform some experiments where hardness would be only one of the important factors.
Surface finish, lubrication, cooling, removal of abraded particles, actual load, speed and mating material may play a conclusive part not reflected in the numerical value of K.
http://www.welding-advisers.com/
RE: Steel wear factor
RE: Steel wear factor