Hammer forging

Example of hammer forging simulation in QForm

Forging hammers are one of the most common machines used for forging. The most critical issues that arise during development of hammer forging technology are:

  • Development of defect free forgings (ie: The absence of underfilling and defects of continuity in the die cavity as well as favorable microstructure)
  • Achieving good die life
  • Selecting the correct equipment and calculation of required number of blows
Simulation of hammer forging with QForm allows the user to debug the technology on a computer model, without wasting time, money and material for test dies. The forging technology can be optimized to reduce the number of forging blows and increase die life by minimizing load and deformation work. The simulation allows the user to develop the optimal design of the forging, reduce wasted material in the forging and optimize the preforming operations.


  • Quick technology development
  • Forged part properties prediction
  • Improvement of working properties and quality of the forged part
  • Increasing of tool life by reducing die cracking and die wear
  • Temperature distribution prediction in the tool and workpiece

Effective stress distribution in the forged part. Simulation in QFormForged automobile part simulation in QForm. Red points indicate laps

Special QForm features which help to simulate hammer forging

  • Very convenient interface allows the user to work with different variants of one technology and quickly switch between them
  • A batch mode is included to solve multiple variations of a technology automatically
  • Easy setup of equipment parameters
  • Analysis of multiple graphs in one window
  • Material can be removed from the simulated forging to show the properties of the machined part
  • Special tab for multi blow forging operations allow easy setup of any number of blows in one operation including all movements (rotation and displacement) of the workpiece before a pass and variation of blow energy for each blow
  • Prediction of the number of required blows


The optimization of hammer forging technology using QForm simulation software is shown in this video. The technology of stub axle forging consists of 4 hammer forging operations: drawing, upsetting, flattening and final forging. Formation of the laps occurs in the initial technology as shown in the first stage of the video. Then the upsetting and flattening height have been increased to avoid defect formation. The second stage of the video shows that the forged part does not have any defects after optimization.