Example 8: Powder Bed Moving Source Modeling with Custom Toolpaths

Sample files for use with the examples are available from the Downloads page.

Expand the downloaded ZIP archive into a convenient directory from which to run Local Simulation inside the numbered directories.

Problem description

For this example, you will run commands inside directory 08.

A set of four Inconel 718 analyses are included in this example that describe the modeling of powder bed tracks using the moving source method. The custom build geometry is defined by the laser path file thft_line1.lsr, which is called by the *LSRF card. The example laser path includes 3 deposition tracks, 5 mm long and 0.04 mm high. The substrate thickness is defined by the second value in the DDM! Card, and the substrate X and Y is extended 10 mm in all 4 planar directions from the bounding box defined by the build geometry.

The four thermal analyses that comprise this example are as follows:

• t.in - Simulates substrate heating using a static autogenerated mesh
• tadpm.in - Simulates substrate heat using a moving-adaptive autogenerated mesh
• tdirect.in - Simulates powder sintering using a static autogenerated mesh
• tddmp.in - Simulates powder sintering using a static autogenerated mesh and active powder elements outside of the three deposition tracks