This article is originally from Technomark entitled: "What Is Dot Peen Marking? Ask anyone inside the industrial manufacturing industry – part-marking is crucial to component traceability when working with large quantities.
The Basics of Dot Peen MarkingIf you took apart a Dot Peen machine, one of the most important components you would find is a carbide or diamond-tip stylus. The Dot peen process is considered a “low-stress” marking method because the mark is generated via material displacement rather than material removal. The carbide stylus strikes the material surface to produce the mark via a series of cold-formed stamped dots. Compared to Laser Marking Systems, Dot Peen does not induce thermal shock to the part surface since the material is cold-stamped rather than super-heated to produce the mark. Dot Peen systems are commonly used by manufacturers in the aerospace and oil & gas industries where low-stress marking is required, such as tubular and flow control products that are exposed to extreme pressure differential in the oilfield. Dot Peen marking is viable for material hardness up to 63 HRC. Typically, when a part hardness is greater than 63 HRC, laser marking systems are recommended. All of Technomark’s Dot Peen machines rely on an electromagnetic solenoid to actuate the marking stylus. Dots are plotted in an X/Y plane via electronic control for precise placement of the Dot pattern. Using electromagnetic force versus pneumatic also provides a greater level of control of both the depth of the mark as well as the ability to mark contoured or complex surface. Dot Peen Marking: Component Traceability In ActionDot Peen marking machines are utilized in almost every industrial-goods manufacturing operation, including:
While these machines can run in-line and handle large quantities in an automated production environment, most are operated manually using a battery pack to go mobile.
Whether the part has a curved, wavy, or complex geometry, the stylus will follow the contour of the marking surface while maintaining a constant depth of marking throughout. When structural integrity is crucial, Dot Peen marking provides a low-stress marking solution that removes no material when marking the part. Why Choose Dot Peen MarkingOne of the biggest benefits of a Dot Peen Marking Machine is its ability to efficiently produce marks compared to other marking systems. Other benefits of Dot Peen machines include:
New and exciting dot peen innovations have just been introduced! Be on the lookout for machines that feature:
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