Laser Marking on Various Components
Laser Marking Laser marking is a method for labeling various kinds of objects using a laser. The principle of laser marking is that a laser beam somehow modifies the optical appearance of a surface that it hits. By scanning the laser beam, it is possible to quickly write letters, symbols, bar codes, and other graphics, using a vector scan or a raster scan. Another method is to use a mask which is imaged on the workpiece. This method is simple and faster but less flexible than scanning.
Laser Marking Types
Laser Engraving
Carbon Migration
Laser Removing Layer
Laser Bonding
Benefits of Laser Marking on Metal… Marking metals with the laser is an extremely accurate and clean way of working on metal. Markings such as serial numbers, codes and logos can be applied on products and components in maximum resolution. Metal etching and engraving with the laser is contact-less; the metal surface is not damaged.
Laser marking with YAG on Black Plastic Sample: Color contrast on black automotive plastic w/ YAG ď śThis material requires low power and high q-switch frequency. All YAG lasers can create this contrast. ď śThe laser suitable for this material is the Fiber Laser. The Fiber laser delivers a nice contrast on this material and is the most cost effective solution.
Laser marking with CO2 on Black Plastic
Sample: Non-contrast on black automotive plastic w/ CO2 ď śThe 10W or 30W CO2 system is ideal for non-contrast marks on black plastic. The decision over 10W or 30W will be price versus speed.
Laser marking with YAG on White Plastic Sample: Color contrast on white medical plastics This material requires a low q-switch frequency in order to create a dark contrast on the white material. The lasers suitable for this material are either the flash lamp or the Vanadate. The Fiber does not have a low enough q-switch frequency to obtain this contrast. The decision of Flash Lamp versus Vanadate will have many factors such as initial costs, Cost of Ownership, other materials to mark etc.
Contact Us The Needham Group Unit 2a/2b Civic Industrial Park Waymills Whitchurch Shropshire SY13 1TT Tel-01948 662629 E-mail: aled@needham-group.com Website: http://www.needham-laser.com