James86004
Expedition Leader
revor said:
Go on - I find it fascinating!
Rover track axles?
- Thread starter RonL
- Start date
Go on - I find it fascinating!
revor
Explorer
Engineers....
Oh wait, I am one...
It's all top secret James!!!
Although I too find it interesting to compare the tensile, ultimate and yield strength's of materials and how different componds alloyed into materials change their characteristics..
The conversation gets a bit dry.
Typically all the "usual suspects" in axle material are high purity vacuum melted materials. Hy Tuff , 4340 and 300M are made into axles from billet bars, they are machined and heat treated. Some are forged though. The High Manganese matereals like 1541, 1541H and others are forged as blanks then rough machined and heat treated. When a axle needs to be made the hardened blaks are then finish machined.
There are a lot of arguments about the best process and the best materials. Cost of Materials plays a role as well, usually the 1500 series steels are cheaper and easier to manipulate the high carbon alloys are usually more expensive and difficult to machine.
A 24 spline Hy Tuff shaft will probably take more twisting cycles than a 1541H shaft but the yeild strength remains pretty close to the same, but this also depends a lot on the heat treat.
I can make a shaft from each material and their performance in the same application will also be similar and in most cases the shaft will be stonger than the gears driving it, so then it boils down cost and availabilty. I use 4340, 1541H and 300m in various applications to try and bring products to the customer at a reasonable price with excellent strength.
I could go on, but then I'd need a beer. The problem there is that when I drink beer I can't seem to get my Slide Rule to power up properly..
Oh wait, I am one...
It's all top secret James!!!
Although I too find it interesting to compare the tensile, ultimate and yield strength's of materials and how different componds alloyed into materials change their characteristics..
The conversation gets a bit dry.
Typically all the "usual suspects" in axle material are high purity vacuum melted materials. Hy Tuff , 4340 and 300M are made into axles from billet bars, they are machined and heat treated. Some are forged though. The High Manganese matereals like 1541, 1541H and others are forged as blanks then rough machined and heat treated. When a axle needs to be made the hardened blaks are then finish machined.
There are a lot of arguments about the best process and the best materials. Cost of Materials plays a role as well, usually the 1500 series steels are cheaper and easier to manipulate the high carbon alloys are usually more expensive and difficult to machine.
A 24 spline Hy Tuff shaft will probably take more twisting cycles than a 1541H shaft but the yeild strength remains pretty close to the same, but this also depends a lot on the heat treat.
I can make a shaft from each material and their performance in the same application will also be similar and in most cases the shaft will be stonger than the gears driving it, so then it boils down cost and availabilty. I use 4340, 1541H and 300m in various applications to try and bring products to the customer at a reasonable price with excellent strength.
I could go on, but then I'd need a beer. The problem there is that when I drink beer I can't seem to get my Slide Rule to power up properly..
James86004
Expedition Leader
revor said:Engineers....
Oh wait, I am one...
It's all top secret James!!!
I figured as much. But you gave me enough material to think about next time I am daydreaming on the shower or while I am sitting in traffic.
So, are the shafts with the integral flange really machined from a billet, or are those forgings? Just seems like a lot of metal to remove if it is a billet.
I Leak Oil
Expedition Leader
revor said:
A higher state of mind only us real engineers can understand!:beer:
Jason T.
Yorker
Adventurer
Isuzurover had an interesting thread on maaterials I thougit was on pirate but apparently it was on Outer Limits:
http://www.outerlimits4x4.com/ftopic31879.php&highlight=hytuff
http://www.outerlimits4x4.com/ftopic31879.php&highlight=hytuff
James86004
Expedition Leader
I have some of my best ideas after a drink or two. The hard part is remembering them the next day!
