Shock absorption properties better from casting or forging?

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SUMMARY

Forged steels generally provide better performance than cast steels in terms of shock absorption properties, particularly for applications involving heavy trucks on bumpy roads. While both casting and forging can yield similar results after machining and heat treatment, casting tends to leave less internal strain, whereas forging minimizes defects. Cast iron is noted for its shock absorption capabilities due to granular carbon inclusions, making it a viable option for chassis construction. For heavy vehicle components, E295 (1.0050) is recommended as a common and cost-effective choice.

PREREQUISITES
  • Understanding of shock absorption principles in materials
  • Familiarity with casting and forging processes
  • Knowledge of material properties, specifically for steels
  • Basic awareness of DIN EN 10025-2 standards
NEXT STEPS
  • Research the properties of E295 (1.0050) steel for heavy vehicle applications
  • Explore the differences in shock absorption between cast iron and forged steel
  • Investigate machining and heat treatment techniques for forged components
  • Learn about the impact of internal strains in cast versus forged materials
USEFUL FOR

Engineers, material scientists, and manufacturers involved in the design and production of heavy vehicle components, particularly those focused on optimizing shock absorption and material performance.

ayush sood
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Hi
I want to ask which of the cast steels or forged steels provide with better shock absorption?
The component has to be used in the under chassis of heavy trucks in bumpy roads.
Can anyone help me with that?

Thank You
 
Last edited:
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Thank You for your reply. But I am not looking for steel wheels
I am looking for a steel bar that has to be used under the chassis of heavy vehicles.
 
Hi Ayush,

Your question is quite general in nature and a detailing your setup will help answers.
Shock absorption means you hit the material at one end and the shock wave gets strongly dissipated and absorbed to the point that it dies out in a long enough slab.
Steels, cast or forged are not in general very good at "shock absorption", as they do not dissipate a shock wave too much.
The main reason some types of cast iron were and still are used in chassis construction is it's ability to absorb shocks by their granular carbon inclusions.
This is why I would ask if your steel part needs to absorb shocks or just withstand them?

If you have to choose between casting or forging, casting will leave less internal strains while forging has a smaller chance of defects, yet both methods can yield similar results after proper machining and heat treatment.

For a starting reference google a DIN EN 10025-2 table. E295 (aka. 1.0050) is used for axles, shafts and seems common and cheap.
 

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