Shock absorption properties better from casting or forging?

In summary, the conversation is about determining which type of steel, cast or forged, provides better shock absorption for a component that will be used in the under chassis of heavy trucks on bumpy roads. One person suggests that forging may be better, but is unsure. The other person clarifies that they are not looking for steel wheels, but rather a steel bar. The conversation then shifts to discussing the general properties of steel and how cast iron is often used for its shock absorption abilities. The final point is made that both casting and forging can yield similar results after proper machining and heat treatment.
  • #1
ayush sood
3
0
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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  • #3
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.
 
  • #4
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.
 

FAQ: Shock absorption properties better from casting or forging?

1. Which process, casting or forging, results in better shock absorption properties?

The answer to this question is not straightforward, as both casting and forging have their own advantages and disadvantages when it comes to shock absorption properties. However, in general, forging is considered to result in better shock absorption properties compared to casting. This is because forging involves the shaping of metal through compressive forces, which results in a more compact and uniform structure, making it better able to withstand shock and impact.

2. What factors affect the shock absorption properties of a material?

The shock absorption properties of a material can be affected by a variety of factors, such as its composition, microstructure, and production method. The type of material, its density, and its ability to deform and absorb energy also play a role in its shock absorption properties.

3. Are there any specific materials that have exceptionally good shock absorption properties?

Yes, there are certain materials that are known for their excellent shock absorption properties. For example, rubber and elastomers are often used in shock-absorbing applications due to their ability to deform and dissipate energy. Additionally, some metals, such as steel and titanium, can also have good shock absorption properties when forged properly.

4. Can the shape of a component affect its shock absorption properties?

Yes, the shape of a component can have a significant impact on its shock absorption properties. For instance, a component with sharp corners or edges is more likely to crack or fail under shock and impact compared to a component with rounded edges. This is because the sharp corners create stress concentration points, making the component more susceptible to failure.

5. What other factors should be considered when choosing between casting and forging for a component with high shock absorption requirements?

Aside from shock absorption properties, other factors that should be considered when choosing between casting and forging include cost, production time, and the complexity of the component. Forging may be more expensive and time-consuming compared to casting, but it can result in a stronger and more durable component. On the other hand, casting is more suitable for complex and intricate shapes, making it a better choice for certain applications.

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