The part was marked using a 20 watt q-switched ytterbium fiber laser with 160mm focal length lens. The patch was marked first, and the 2D code and text were marked on top of it. The patch was surface etched onto the material using 14 watts of power, with a frequency of 30kHz, at a speed of 50 inches per second. The 2D code and the text were then ablated onto the material to provide a brightly contrasting mark. They were marked using approximately 18 watts of power, with a frequency of 35kHz, and at a speed of 4 inches per second. The patch provides contrast for the code, as well as a uniform marking surface. Therefore, the code read well in the lab.