hexagon logo
Register Sign in
  • State Not Answered
  • Replies 23 replies
  • Subscribers 4 subscribers
  • Views 889 views
  • Users 0 members are here
Options
Related

Simufact material database for Inconel 718 powder

C B
I have few questions about the Simufact material database for Inconel 718 powder, when looking into the flow curves all I could see is the data for the plastic region, I would like to know why the Simufact didn't consider the elastic region. Also in the mechanical properties what is the input for elastic modulus for this material because am not able to find it, did you consider infinite elastic modulus? if yes, could you please explain.
 
Kindly look in to the below plot I got from a simple compression test showing true stress and true strain for IN718 powder at 20C .
In718
Could you please explain why the Simufact database doesn't have any elastic region data.
Parents
  • 0
    Hello Vignesh,
     
    please do not mix "heat conduction" with "heat transfer". Both, rigid dies and rigid dies with heat conduction, have heat transfer from the workpiece to the die. But for rigid dies, the die surface temperature remains constant. Where as rigid dies with heat conduction and deformable dies heat up locally and develop a temperature distribution inside and at the surface based on their heat conduction and heat capacity .
     
    The heat transfer is defined as power (W) per area (m²) and temperature difference (K or °C). When the rigid dies with heat conduction heat up locally, the temperature difference gets smaller. Thus the heat transfer decreases and the temperature of the workpiece increases.
     
    The rigid dies with out heat conduction, but with heat transfer, remain "cold", the temperature difference high, thus the heat transfer high and thus the workpiece temperature low.
     
    In this regard deformable dies behave like rigid dies with heat conduction.
     
    If you change the die types, you may have to adjust your heat transfer coefficients.
     
    Regards,
     
    Christian
     
Reply
  • 0
    Hello Vignesh,
     
    please do not mix "heat conduction" with "heat transfer". Both, rigid dies and rigid dies with heat conduction, have heat transfer from the workpiece to the die. But for rigid dies, the die surface temperature remains constant. Where as rigid dies with heat conduction and deformable dies heat up locally and develop a temperature distribution inside and at the surface based on their heat conduction and heat capacity .
     
    The heat transfer is defined as power (W) per area (m²) and temperature difference (K or °C). When the rigid dies with heat conduction heat up locally, the temperature difference gets smaller. Thus the heat transfer decreases and the temperature of the workpiece increases.
     
    The rigid dies with out heat conduction, but with heat transfer, remain "cold", the temperature difference high, thus the heat transfer high and thus the workpiece temperature low.
     
    In this regard deformable dies behave like rigid dies with heat conduction.
     
    If you change the die types, you may have to adjust your heat transfer coefficients.
     
    Regards,
     
    Christian
     
Children
No Data
© 2025 Hexagon AB and/or its subsidiaries. Privacy Policy | Cloud Services Agreement