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ZwickRoell Supports GABO Werkstofftechnik GmbH with Their Hardness Testing

As a service oriented materials testing laboratory, GABO Werkstofftechnik GmbH addresses many processes within the entire value chain: from testing raw materials, to certification of the material and end product acceptance. GABO Werkstofftechnik GmbH in Essingen, Germany offers customized and flexible solutions for standard-compliant materials testing. This includes metallographic examinations, chemical analysis and mechanical-technological tests as well as spot hardness tests and hardness curves. For this, the company uses the DuraScan 70 G5 hardness tester from ZwickRoell. The testing instrument makes work flows more efficient, reduces effort through the variety of measurement options, and thus offers customers significant added value.

Our goal is to consistently deliver the highest level of quality and always provide our customers individualized and standard-compliant services. In addition, we actively support our customers’ development departments with our expertise and advice in order to implement a standard-compliant test plan even for new requirements,” said Harald Hirsch, Testing Laboratory Manager at GABO Werkstofftechnik GmbH.
Since 1997, GABO Werkstofftechnik GmbH has been supporting their customers in the area of quality assurance, research and development as well as damage analysis through non-destructive (NDT) and destructive testing (laboratory). With the DuraScan G5, hardness tests can now be performed at an even greater extent.

The fully automated DuraScan 70 G5 offers the right solution for hardness profiles on welded seams, sequence tests on hardened surface layers, and hardness measurements on coatings in accordance with the Vickers laboratory hardness testing method. With their many features, the hardness testers in the DuraScan G5 product line lead to greater efficiency, increased flexibility, consistent accuracy and process reliability.

All hardness tests to Vickers, Knoop and Brinell can be performed in a load range between 0.25 p and 62.5 kp (p = pond). Thus the clamping insert can be quickly adjusted in height at 10x speed. Thanks to the scanning function, it is automatically adjusted to the optimum working distance and the camera image is also immediately in focus. All DuraScan instruments have a 10 MP camera with high image quality and the high-resolution camera chip additionally provides 4x zoom capability. The 18 MP color overview camera with active LED coaxial lighting for the DuraScan 70 G5 and 80 G5 supports high-resolution, color reproduction, enhances the quality of the image and allows users to focus on the specimen. The self-sustaining design allows the instrument to be used even in inadequate ambient lighting conditions. The fully automated DuraScan 70 G5 is operated via a network-compatible computer. The intuitive ecos Workflow Pro operating software helps avoid operator errors and supports operation of the instrument for hardness testing. Test personnel is guided step-by-step through the measurement, data backup, and specimen management process, all the way through to documentation.

In addition to the expansive measurement options provided by the DuraScan G5, GABO Werkstofftechnik GmbH was particularly impressed with the hardness mapping feature. With hardness mapping, an area-wide hardness profile is created of a specific area. Using test points distributed in a grid pattern, the hardness profile can be displayed both as a color representation in 2D or a three-dimensional diagram. This, for example, allows you to assess the homogeneity of the specimens and identify conspicuous areas. It is of particular significance for customers in the automotive, aerospace, medical or motor sports sectors.

“With the hardness mapping feature of the DuraScan 70 G5, we were able to validate a new repair welding process. Individual heat-affected zones and melt lines within the base and filler metals could be made visible and negative, constructive interactions could be better estimated. Furthermore, a case-hardening layer along the entire tooth flanks of a pinion shaft was depicted holistically using a 3D hardness profile. Before the DuraScan 70 G5 was used, this was technically only possible in the form of individual runs at individual test points. In addition, the comprehensive software solution supports us in many tasks. Thus, hardening series at defined positions or at specific angles are accurately reproducible,” explains Kevin Grube, Deputy Head of Test Laboratory at GABO Werkstofftechnik GmbH.

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