Forging and Toughness questions

  • Thread starter pukb
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In summary, forging can improve the toughness of a material by reducing the number of cracks and voids through the formation of a laminar structure. This laminar structure is created through the uniform flow of metal during compression and is similar to laminae found in composites. Additionally, this structure helps to arrest cracks and improve overall toughness.
  • #1
pukb
94
1
Area under stress strain curve is known as toughness.
Does it represent impact toughness or fracture toughness?
Is there any relation between area and fracture and impact toughness?
 
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  • #2
Forging and toughness

Toughness of the material increases after forging.
Is it due to reduction in number of cracks and crack lengths or is there any other fundamental reason to it?
 
  • #3
Forging improves toughness due the laminar structure i.e. formed during forging process. Grain size is reformed and yes inhomogeneities like cracks, voids are minimized during forging.
 
  • #4
can you explain more about laminar structure
 
  • #5
Laminar structure appear macroscopically in a sense, uniform flow of metal during compression causes formation of such structure. Laminar structures are synonymous to laminae in composites, hence they favour crack arrest.

Hope this solves your query, if more interested try searching for Laminar Structure in Forging online for futher information.
 

What is forging and toughness?

Forging is a manufacturing process in which metal is heated and then shaped by applying pressure. Toughness is a material's ability to resist fracture and deformation.

How is forging different from other metal shaping processes?

Forging differs from other metal shaping processes, such as casting and machining, in that it uses compressive forces instead of tensile or shearing forces. This results in a stronger and more durable metal product.

What factors affect the toughness of a forged metal product?

The toughness of a forged metal product can be affected by several factors, including the type of metal used, the temperature and speed at which it is forged, and the design of the forging die.

What are some common applications of forged metal products?

Forged metal products have a wide range of applications, including in the automotive, aerospace, and construction industries. They are commonly used for parts that require high strength, durability, and resistance to wear and tear.

How is the toughness of a forged metal product tested?

The toughness of a forged metal product is typically tested using impact testing, which measures the energy absorbed by the material during fracture. This can help determine the product's ability to withstand sudden or heavy loads without breaking.

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