To do so, the local coordinate system can be used in a do loop. The origin of the local CS is moving in the do loop and the heat input is applied according to the local CS.

Thanks for the answer sir. Do i need to write a micro for this?, if it possible can you explain briefly. I will be greatfull if you could explain it step wise because i am new for this.

Here it is a simple but good tutorial. And I believe that you could find more similar tutorials in YouTube.

Despite the GUI operations in the video, it is better to use a do loop for multi-steps heat input. To use APDL (macro) is suggested.

https://www.youtube.com/watch?v=kb0HYixRADM

this one  has code for simulation also,check this-https://www.youtube.com/watch?v=_wfjj_BscIE

thanks @ Saad Aziz : I couldn't able to find the codes

Anyone know how to simulate a moving gaussian heat source for metal additive manufacturing process?

Dear sir

When I simulated the moving heat source using APDL in ansys, the more refined mesh results in the different results and the difference was significant. Do you know why?

Dear haichao,

The more refinement, the more accurate the results will be. If you are doing the refinement on the path of heat source, then it is perfect as it is the area of concentration.

Dear Hemnath

Thank you very much for you kind reply, do you simulate the point moving heat source in ANSYS?. Thanks agian.

Dear Haichao,

I haven't simulated a point moving heat source. But its pretty easy. You can refer the link below.

https://www.youtube.com/watch?v=kb0HYixRADM