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A simulation software dedicated to metal heat treatment

SIMHEAT® is the effective solution to simulate metallic alloy heat treatment processes of (including carbon steel and aluminium) and obtain true insights of workpiece distortion, residual stress and microstructural evolution.

Would you like to improve your heat treatment processes and improve the mechanical properties of your metal parts?

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Is SIMHEAT® suitable for your heat treatment process?

Surface heat treatment for gears with SIMHEAT<sup>®</sup>

Steel grades heat treatment with SIMHEAT<sup>®</sup>

Aluminium alloys heat treatment with SIMHEAT<sup>®</sup>

heat treatment

Steel grades
heat treatment

Aluminium alloys
heat treatment

> Carburizing
> Case hardening
> Nitriding

> Quenching
> Annealing / Tempering
> Controlled cooling
> Austenizing

> Solutionizing
> Quenching
> Artificial ageing

Induction heat treatment with metallurgical changes

Induction heat treatment simulation provides comprehensive information about temperature gradient from surface to core and also the location of areas where phase transformations occur. One can monitor the impact of current frequency, coil geometry and even concentrators’ location within the heat affected zone. Material modelling takes considers electrical and magnetic properties that are temperature-dependent.

Perfectly dedicated to induction heat treating

  • A multi-physics approach to capture ‘mechanical-electromagnetic-metallurgical’ phenomena
  • Monitor inductors & concentrators in motion to image rotating parts and induction equipment (e.g. case hardening of a crankshaft)
  • Up-to-date modelling of the generators that adjusts current intensity and frequency to maintain prescribed nominal power values
  • Prediction of heat affected zone and metallurgical transformations to identify austenized areas prior to quenching
  • Local mesh adaptation based on the temperature penetration depth

SIMHEAT<sup>®</sup> - crankshaft simulation - temperature evolution
Simulation of induction heat treatment of a crankshaft: temperature evolution

SIMHEAT<sup>®</sup> - crankshaft simulation - phase transformation
Local phase transformation with appearance of austenite

A series of useful features

  • Full compatibility with JMatPro® database
  • Generation of Kirkaldy-based TTT diagram for low-alloy steel grades
  • Import tailored CCT diagram in text format
  • Carburizing: offset of transformation kinetics as a function of carbon rate
  • Age hardening based on Shercliff-Ashby models for heat-treatable aluminium alloys
  • Distortion models applicable to any kind of metal including aeronautic alloys
  • Material sensor tracking to plot characteristics over processing
  • Exhaustive results: temperature, phase transformation, HV or HRC hardness, distortion, residual stress, yield stress, carbon and nitrogen concentration, etc.


Saving costs and increasing performance with simulation

  • Increase high-quality component performance
  • Ensure the process feasibility and repeatability
  • Predict final in-service properties by controlling microstructural evolution
  • Master product dimensions by minimizing distortions
  • Limit the risk of rejected parts by anticipating defects and avoiding cracks
  • Reduce energy consumption by optimizing heating and holding cycle time
  • Optimize current frequency in induction heat-treating to obtain expected surface hardness and core ductility

TTT & CCT diagram generator
for steel grades

Heat Transfer Coefficients identification by means of inverse engineering

TTC and CCT diagrams are generated for low alloy steel grades based on their chemical composition and initial grain size. User-defined CCT diagrams can be input as part of the quenching simulation data set.

SIMHEAT® includes a unique automatic optimization module useful to identify process parameters. For instance, it is absolutely vital to get accurate values as heat transfer coefficients are surface temperature-dependent. The program’s optimization loop determines the exact HTC values that fit with temperature records obtained from experimental tests (e.g. Jominy test).

Heat Transfer Coefficients identification by means of inverse engineering
Determination of HTC values might be challenging

A solution for process engineers, material engineers and metallurgists

The SIMHEAT® software is dedicated to:

  • Process engineers who want to master the impact of the manufacturing process on the final component properties, whether the component has been hot/warm/cold-formed or cast, welded or machined.
  • Material engineers who want to follow correct heat treatment procedures to ensure metals meet specified strength requirements
  • Metallurgists who want to ensure manufacturing high-quality components by controlling phase transformations and microstructural evolutions during heat treatment


Fully integrated solution in the Transvalor suite

SIMHEAT® can be used as a standalone solution or in combination with Transvalor software. The perfect interoperability guarantees seamless results transfer from one solution to another.

interoprrability of SIMHEAT<sup>®</sup> withinTRANSVALOR suite


CASE STUDY: Validate the induction hardening simulation process

SIMHEAT® has been developed from our FORGE® software. FORGE® performs hot forging process simulation, including heat treatment processes. Both software packages can effectively simulate heat treatment operations.

Read the case study of NTN-SNR
about induction hardening simulation process

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