thermal processes

process example stress relieving

Several heat treatments are required right after the printing is done. Stress relieving, for example, is an annealing heat treatment, which is made below the critical temperature of the metal. Its aim is to remove residual stresses present within the material, resulting in a fine transformation from α’-phase to α-phase microstructure, with small increase in the grain size for Ti64 for example.

High content of residual stresses after printing can lead to distortion of the part (when stresses induced by the process are greater than local yield stress of the material), crack formation (when stresses induced by the process are greater than the ultimate tensile strength) and rupture of the support structures or part from the building plate.

For sure also other heat treatments can be done to improve the mechanical properties of the additive manufactured part.

processes available have a look at our processes!

Available hardening and tempering processes are:

    • Vacuum Hardening & Tempering
    • Atmospheric Hardening & Tempering
    • Induction Hardening
    • Precipitation / Age Hardening
    • Aluminium Heat Treatments

Available annealing processes are:

    • Full Annealing
    • Sintering
    • Stress Relieving
    • Soft Annealing
    • Re-crystallisation Annealing
    • Standardised Annealing
    • Solution Annealing
    • Stabilisation Annealing
    • Magnetic Annealing (Permeable Annealing)


Of course, Hauck Heat Treatment is able to anneal according to your (tailor-made) specifications.

After hardening it may be required to quench materials below 0°C. The required temperature depends on the grade of steel that is used.

We have capabilities to cool down up to -160°C. This process can also be used to age specific materials

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get in touch interested in our technologies? please contact us...

Viviane Kettermann-Fernandes
Research & Development
Daniel Guizard
Head of Aalberts Additive Manufacturing