Material deposition

adamantine supports two ways to deposit material: based on the scan path and based on a separate material deposition file.

Scan-path-based deposition

If the material deposition is based on the scan path, then material is added according to the deposition_length, deposition_width, deposition_height, deposition_lead_time, and deposition_time input parameters in the geometry input block. Cells are activated if they are crossed by a rectangular prism (rectangle in 2D) traveling along the scan path. In 3D the rectangular prism is centered with the (x,y) values of the scan path and the top of the rectangular prism is at the z value of the scan path (i.e. the scan path height gives the new height of the material after deposition). Near the end of segments, the length of the rectangular prism is truncated so as to not deposit material past the edge of the segment. Material can be deposited with a lead time ahead of the heat source (controlled by deposition_lead_time). Depositing material requires modifying the simulation mesh, which can be computationally intensive. To reduce the cost, material can be added in “lumps”, with the time between lumps set by deposition_time.

File-based deposition

The material deposition can also be set by boxes defined in a separate file. The format of this file is as follows.

The first entry of the file is the dimension the problem: 2 or 3.

• For 2D problems, the column descriptions are:
  • Column 1 to 2: (x,y) coordinates of the center of the deposition box in m.
  • Column 3 to 4: (x,y) length of deposition box in m.
  • Column 5: deposition time in s.
  • Column 6: angle of material deposition.
• For 3D problems, the column descriptions are:
  • Column 1 to 3: (x,y,z) coordinates of the center of the deposition box in m.
  • Column 4 to 6: (x,y,z) length of deposition box in m.
  • Column 7: deposition time in s.
  • Column 6: angle of material deposition.

An example of such a file can be found here.