The depth of a marking created by a pneumatic dot peen engraver（https://www.cnmarking.com/pneumatic-dot-peen-marker） is influenced by several factors:
Air pressure: Higher air pressure typically results in deeper markings. However, excessive air pressure can damage the workpiece or the peen.
Peen hardness: Harder peens can create deeper markings. However, extremely hard peens may be more prone to breakage.
Number of impacts per dot: Increasing the number of impacts per dot can also increase the marking depth. However, excessive impacts can reduce the quality of the marking.
Workpiece hardness: Harder workpieces generally require higher air pressure and/or more impacts to achieve the desired marking depth.
Surface finish: Rougher surfaces may require higher air pressure or more impacts to create a legible marking.
It is important to find the optimal combination of these factors to achieve the desired marking depth while minimizing damage to the workpiece and the engraver. Experimentation and careful adjustment of the machine's settings are often necessary.
