The marking technology for data matrix is normally specified in the marking standard from the end user. The choice of marking technology is critical for the type of component and the production method being used to produce the parts.
Dot peen marking is typically used in the automotive sector and the gas turbine engine industries as this is an ideal technology for production line integration. With the gas turbine industry it is ideal for producing a low stress permanent mark for applications such as marking on the fir tree of a gas turbine blade.
Laser marking is ideal for high contrast marks on most metal surfaces and is capable of producing extremely small data matrix codes with either a standalone system or integrated laser. The advantage of laser is that it is a non contact marking system.
Electrochemical marking is typically hand applied or semi-automated. Due to its extremely low stress marking it is often used for thin walled section components within the Aerospace industry.