Material properties

Determination of Material Characteristics for Creating Material Cards

The challenge

Simulations are important in the new product development. The development of the shape and the design of a product as well as the needed tools and forming processes are simulated and optimized on the computer first. These simulations and optimizations of products as well as forming processes provide results as realistic as possible. For that, the characteristics of the specific material that is formed in the simulation have to be known. These characteristics describe how the material behaves during forming.

The material characteristics are determined with corresponding test methods such as Nakajima, bulge or tensile tests. The results of these tests are documented in material cards.


The solution

The ARAMIS system helps to determine the corresponding characteristics. The engineer determines optically in 3D the deformations of the entire surface of the material sample that have been carried out in these tests. In this way, important material characteristics such as the forming limit curve (FLC) in accordance with ISO 12004 or the biaxial flow curve in accordance with ISO 16808 are identified.

A material card with this information provides reliable input parameters for simulation calculations. Material cards guarantee the following:

1. The part is designed in a way that guarantees the necessary part safety.

2. The design is component-compatible.

3. The simulations provide realistic results.

Conclusion: In this way, development times and test runs are significantly reduced.

 

The benefits

Efficient creation 
of precise material cards
Component-compatible design
guaranteeing sufficient part safety
Close-to-reality simulation results
due to reliable input parameters

GOM Solutions for every process step

The flexible 3D coordinate measuring systems ATOS, ARAMIS and ARGUS are used in all process steps of metal forming. Learn more about how GOM systems optimize the individual forming processes to ensure quality and process reliability.

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