Effective heat treatment

Effective heat treatment

We use various heat treatment processes to ensure that components have a uniform microstructure and the requisite hardness. MTU Aero Solutions offers you access to these processes.
 

Annealing processes To achieve a uniform microstructure and proper hardness, normalizing, soft annealing, recrystallizing and stress relieving are used.

ProcessObjectiveOperating Temperature °C
Normalizing
  • Heat treatment for subsequent hardening processes
  • Gives material an even structure
900 – 960°C
Soft annealing
  • Reduces hardness of material for subsequent processing steps, such as machining or forming
700 – 900°C
Recrystallization annealing
  • “Softening” materials
  • Improving deformation characteristics of materials

900 –1100°C

Stress-relief annealing
  • Reducing internal stresses
  • Avoiding the formation of cracks and warpage
400 –1180°C
Solution annealing
  • Placing elements involved in precipitation hardening phases into solution
600 –1180°C
Aging
  • Targeted precipitation of finely distributed particles in order to increase strength and obtain certain characteristics
400 – 900°C

These processes can be carried out in air, protective gas and vacuums (protective gas up to 950°C).

Hardening processes To prolong the life of components, they are hardened and tempered.

ProcessObjectiveOperating temperature °C
Precipitation hardening
  • Increasing the hardness and lifetime of various base materials
400 –1190°C
Quenching and tempering
  • Increasing hardness while obtaining good toughness
  • Avoiding warpage

500 – 940°C

700 –1050°C

Case hardening
  • Targeted increase of hardness in specific areas
800 – 940°C
Carburizing
  • Thermochemical treatment of a workpiece in an austenitic state to increase the amount of carbon on the surface, which is then present in a solid solution in the austenite
900 – 930 °C
Gas nitriding
  • Thermochemical treatment that creates a nitride layer on the surface of a workpiece
490 – 525°C
Hardness testingAll common hardness testing methods 

 

 

Contact

Federico Sender
Phone: +49 (0) 89 1489-4091
Fax: +49 (0) 89 1489-6053
Phone: +49 (0) 89 1489-4091
Fax: +49 (0) 89 1489-6053
Petra Smula
Phone: +49 (0) 89 1489-4794
Fax: +49 (0) 89 1489-6053
Phone: +49 (0) 89 1489-4794
Fax: +49 (0) 89 1489-6053
Karin Wolf
Phone: +49 (0) 89 1489-9383
Fax: +49 (0) 89 1489-6053
Phone: +49 (0) 89 1489-9383
Fax: +49 (0) 89 1489-6053

Or send us an e-mail