Example 20: 6-Axis Directed Energy Deposition

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 20.

This example simulates the 6-Axis Directed Energy Deposition (DED) construction of a 2-bead wide, 3-layer high Ti-6Al-4V component on a radial Ti-6Al-4V component. The radial component is shown in Figure 1(a), while the laser path is shown in Figure 1(b) upon a generic substrate.

Note that 6 axis DED laser path (.lsr) files can be imported and viewed in Autodesk Simulation Utility for Netfabb, however the simulations must still be performed at the command line. The radius of the melt pool is 2 mm, its power is 750 W, and the translation speed is 10 mm/s. The hatch spacing between the two beads is 2 mm. The ambient temperature during the process is 30.5° C. The substrate is constrained as simply supported. The thermal and mechanical response of this process is to be calculated using Netfabb Simulation with adaptive meshing. The resulting mesh is shown in Figure 2.

Figure 1: 6-axis DED example part and path

Figure 2: 6-axis DED mesh