Hello,

i am currently doing a little research for my university about the material used to manufacture hydraulic cylinder for robotic application.

and so far i have found that ductile iron for cylinder, and nickel-chromium alloy for the piston rods.

as for surface treatment we might use electrodposition to enhance he wear and corrosion resistance if the piston rods was made from mild carbon steel for example, but there's no heat treatment for rod or cylinders . what do you think  about that ?

thanks

Need to define how it will be used: once an hour with light loading could be different than 150 times a minute under heavy loading.

its for robot, so basically. it is going to used very much for motion, (speed motion sometimes).

and most of the time light load

My understanding is that most of these are heat treated for maximum toughness with hard chrome surface treatment to provide a lubricious and long wearing surface. Sufyan, I hate to push off this answer, but you should be looking to industry trade journals and white papers for this information, as it is a very specific usage that is also affected by the exact alloy used, etc.

okay, Stevomiller thank you

we going to see this robot?  Oooh I hope its a Battle Bot!!

haahah no .its a robot who has main goals to help humans, especially in situation where humans cannot do the task or endanger them,

the robot still under development, i will share it when it done

Well that "could" be a battle bot then.

You may also wish to look into Molybdenum coated rods depending on the abrasion and wear resistance needed

yes sir, im now working on coating, method is electrodepostion, coat alloy is base nickel with chromium- molybdenum- cobalt...

DLC, diamond like coating.

 

There is a company in Tucson Arizona that I am VERY familiar with the owners/operators. Duralar. They can coat any conductive metal in a matrix that has a carbon atomic structure that is diamond like. It has incredible wear resistance, as well as a natural dry lubricity. Their coatings put chrome coatings to shame. You can use less expensive base steel that doesn't need as much wear properties, and focus more on strength.

On 10/2/2018 at 9:40 AM, sufyan said:

i will share it when it done

Welcome to IFI... I always suggest reading this thread to get the best out of the forum.https://www.iforgeiron.com/topic/53873-read-this-first/ Pictures, pictures, pictures as you can see we love pictures. Where in the world are you located?

 

11 hours ago, Irondragon Forge & Clay said:

Welcome to IFI...

hello friend,

currently in france

13 hours ago, Jclonts82 said:

DLC, diamond like coating.

thank you for this precious info