Dot peen marking is an industrial marking method used to create permanent marks on metal, plastic and some hard surfaces. This method is based on the principle that a needle strikes the surface with a certain pressure, creating micro-pits. Dot peen marking is widely preferred for engraving serial numbers, barcodes, logos and other identifying information.
Why Does Depth of Dot Peen Marking Matter?
Marking depth is one of the most important factors determining legibility, durability and suitability for the application surface. Too deep marking can damage the surface, while too superficial marking can be erased over time. Especially in the automotive, aviation and medical sectors, marking at the appropriate depth is of great importance to ensure quality standards.
How to Adjust the Depth of Dot Peen Marking?
You can follow the steps below to adjust the marking depth:
1. Choosing the Right Needle
The marking depth is directly related to the size and material of the needle used. For deeper marking, harder and larger diameter needles should be preferred.
2. Adjust Air Pressure and Stroke Force
Dot peen marking machines usually have a system that works with air pressure. To increase the depth, it is necessary to increase the air pressure. However, too high a pressure can damage the surface, so it must be set at the appropriate level.
3. Increase the number of strokes
Some machines have the option to make multiple strokes on the same spot. By making more strokes, the marking depth can be increased.
4. Reduce Needle Speed
The lower the marking speed, the more pressure the needle exerts on the surface, which increases the marking depth. However, too low a speed can slow down the production process.
5. Consider the Type of Material
Different materials require different marking depths. For example, harder materials such as stainless steel require higher pressure, while softer materials such as aluminum require lower pressure.
6. Conduct Trial Branding
For best results, tests should first be carried out on sample surfaces. Trial markings help you to understand whether the settings are suitable for the surface.
7. Maintain the Machine
Regular maintenance is critical to maintain marking quality. Worn or broken needles can negatively affect marking depth. Therefore, periodic maintenance should not be neglected.
Conclusion
Setting the depth of dot peen marking varies depending on the material used, machine settings and marking objectives. Marking with the right settings ensures long-lasting and legible results. By carefully optimizing factors such as needle selection, air pressure, speed and number of strokes, you can achieve the best marking quality.
