DMG Mori LASERTEC 65 DED hybrid

The 2nd Generation of the DMG MORI LASERTEC 65 DED hybrid takes a workpiece that DMG MORI puts at 170% bigger than the 1st Generation's: Ø 840 × 350 mm or Ø 680 × 400 mm, up to 600 kg (1,322.8 lb). The build rate is stated as 35% higher, without naming the baseline. Neither figure comes with an absolute value, so ask for the build rate in your material.

The deposition head uses a nozzle DMG MORI calls multiJet, moved in 5 axes, which is said to give a homogeneous powder distribution whatever the direction of the weld path. Two kinds of laser source are available, infrared and blue. The spec table lists 3,000 W of laser power.

Process monitoring is grouped under the AM Assistant. A thermal imaging camera observes the whole work area, which makes it possible to control the interpass temperature and to use the laser for pre-heating. A second camera monitors the thermal energy of the meltpool and regulates laser power in a closed loop. A lateral camera keeps the working distance under constant control, and the powder mass flow is calibrated automatically and watched by an optical sensor. The AM Evaluator displays the recorded process data, such as meltpool size and powder mass flow, both as a digital 3D model and in time sequence, which is the traceability record for a welded part.

Powder management is described as new as well. Pots come in three sizes, S with 0.5 l, M with 2.3 l and L with 5 l, the containers are stored under argon pressure, and the hopper cabinet has automatic dust extraction. A pressure leak check and level sensor is optional.

The machine around the laser offers 735 mm (28.9 in) of X, 650 mm (25.6 in) of Y and 560 mm (22 in) of Z, with milling, turning and grinding in the same setup.