Data Matrix marking and reading on aluminium parts

The challenge

The challenge in this case is two-fold:

• Reducing the loss of non-compliant parts at the end of the process.
  In effect, as parts are identified by a Data Matrix marking at the press output, this establishes a traceability system, throughout production.
  This traceability is checked: if the part is not right, it is crushed and returned to casting.
  
• Finding a very compact and secure solution for protecting the laser in the specific environment of a casting workshop, where the temperature is above 40 degrees with a great deal of dust.