Our modular product line Simufact.welding offers comprehensive functionality for modeling elastic-plastic behavior of materials, and structural welding simulation for different welding processes.
Simufact.welding offers the possibility to calculate welding stresses, distortions, and the evolution of material properties from a graphical user interface. This means:
The new version of Simufact.welding is more closely towards the real welding processes and comes with a new application module Resistance Spot Welding.
The faster design of an optimal welding process provides considerable economic benefits, such as:
Welding simulation in Simufact.welding uses the finite element method. This approach is especially suitable for calculation of elastic-plastic material behavior with hardening, thus being well suited for structural welding simulation. Complex processes during welding – induced by an arc or by evaporating metal inside a keyhole - are not taken into account. This means that process stability and weld seam geometry are not results of a simulation but input parameters.
Structural welding simulation calculates effects of heat input of the welding process from a mathematical description of heat flux during welding, namely, a description of the melt pool isothermal line by an equivalent heat source. Complex process details such as the kind of the laser used or powder in a submerged welding process are unnecessary.
Many of the over 150 existing welding processes can be investigated by Simufact.welding, especially resistance spot welding, which is a process widely used in automotive and sheet metal working. It is possible to simulate structural welding as well as the welding process.
The main goal of calculations made by Simufact.welding is to predict welding distortions. Due to implementation of material models, we are also able to calculate phase proportions, material conditions, and resulting local material properties, as well as further effects like transformation-induced plasticity and transformation strains.
Welding distortions often are not completely avoidable. Nevertheless, they represent a challenge only if requirements of the welded structure are not fulfilled. Read below to learn more about typical fields of application in which Simufact.welding is used to control and minimize welding distortions.
The understanding of a process as well as reduction of development cycles by:
Welding sequences and intervals are crucial if temperatures between layers are important. For mass production, short cooling times before unclamping are desirable in order to increase the output. Usually, the influence on welding distortions is a question of seconds.
When compared to experimental investigations, a further advantage is the ability to study different processing configurations before money is invested in welding equipment.
Wheel rim, welded from the inside, temperature field
Wheel rim, welded from the inside, distortions
Welding of a bearer structure, temperature field
Von Mises equivalent stress
Maximal temperatures of a resistance spot welded connection between B-pillar and the roof frame
Definition of result files as single SPR-files assigned to each component or exportable files in standard Universal File Format allows stepwise calculations that are based on previous results. This approach makes it possible to calculate welded assemblies, or to carry out process chain simulations. Therefore it is possible to integrate welding with pre- and post-processing in a common numerical framework. The easy transfer of data allows consideration of the material history with respect to a previous forming process, as well as the fatigue response of a calculated weldment.
Modeling, simulation, and evaluation of results are done from within a single user interface.
Simufact.welding is a modular software. This modular concept of Simufact products helps you choose functionality relevant to your needs. The approach is cost-efficient and provides the flexibility to adapt to changing requirements.
The product line provides process-specific functions for important application fields of welding simulation. Application modules allow simulation of single processing steps, but also allow a combination of such steps to simulate process chains.
Additional modules extend important functionality even further.
A large number of customers, including leading manufacturers, have confidence in the simulation technology of Simufact. Users of Simufact.welding for structural welding simulation are, among others:
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