Development of the multidirectional forging process

The Cetim forge commission has set up a research group to study the development of the multidirectional forging process.

Multidirectional forging is a process which consists in forming a part using transverse kinematics of tooling going in different directions, and in a single step. This type of process makes it possible to obtain preforms with more complex geometries and a better distribution of the volume in the part.

To develop multidirectional forging, the Cetim worked in collaboration with IPH (Integrierte Produktion Hannover), a research institute specialized in production technologies. The IPH based its research on a crankshaft, a part very suitable for multidirectional forging.

The purpose of this work is to improve the design and the production of tools, as well as their lifetime.

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Forging sequence of the industrial case - Source : Cetim

The simulation of multidirectional forging of a crankshaft

The main goal of the IPH was to reduce the number of operations and to aim the manufacturing of a crankshaft without burr.

To understand the movements of matter and consider the different kinematics of the tools, a study was carried out with the FORGE® simulation software.

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This numerical study made it possible to grasp different elements:

  • The forging sequence and tool kinematics
  • The complexity of tools
  • Thermal aspects depending on the scale selected
  • Definition of machine requirements to ensure the forging operation

The feasibility of the process could therefore be validated.

Read the article (in French only) >

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Tools kinematics during forging operation - Source : IPH