The samples were marked using a 20-watt q-switched ytterbium fiber laser with a 160 mm focal length lens. The carbide parts were surface etched, to create brightly contrasting light marks on the material. They were marked using approximately 11 watts of power, with a frequency of 30kHz, at a speed of 15 inches per second, resulting in different cycle times according to length and size of the text. The large bit had a cycle time of 1.2 seconds. The medium size bit had a cycle time of 1.46 seconds, and the small bit had a cycle time of 0.3 seconds.

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