Laser line illumination is effective in difficult-to-scan 3-D Data Matrix code applications.
Peen marking is a common method for identifying parts. As with its less-flexible cousin, stamping, peening creates an impression in the part surface. Peen marking typically uses a single point that is repetitively, precisely located and then driven into the surface to create numbers, letters, artwork, or codes. Peened area codes-specifically peened Data Matrix (DM) 2-D codes-are becoming the standard for tracking information on a vast number of automotive, aerospace, military, and industrial parts. This is because peen coding is inexpensive and durable, and DM encoding technology is powerful enough to both prevent errors and correct damaged codes. Furthermore, area codes can contain far more information than common barcodes.
