Technical Guide

Hardness and hardness testing in comparison

A wide variety of raw materials and ancillary materials are used in industrial applications. Comprehensive knowledge of their material properties is an absolute prerequisite for using these raw materials for a defined application in technical environments. Hardness tests are a way to determine basic material properties such as hardness/ductility and strength of a material, such as steel. Hardness plays a critical role in the characterization and quality control of materials. The hardness of a steel provides information about its mechanical properties, wear resistance and suitability for specific applications. In this context, various hardness testing methods and scales have been developed to accurately determine and classify the hardness of steel. This article provides an overview of common hardness test methods, an overview of some of the heat treatment options for steel materials, the resulting Vickers hardness levels and their possible applications.

17 Minutes read

Processing limits and accuracy standards for sheet metal parts

Sheet metal parts are used in our everyday life and in industry in a wide range of applications. In order for these manufactured sheet metal parts to be used interoperably, they must comply with certain accuracy standards and machining limits. These refer to specific parameters and tolerances with respect to width, length, thickness and geometric tolerances. The specifications must be taken into account when manufacturing sheet metal parts. The following examines various standards and limits in detail.

8 Minutes read

Machining of stainless steels

Stainless steel is a material that is difficult to machine. Machining entails a risk of cold tempering. In addition, machining errors can create attack surfaces for corrosion. The following article answers the frequently asked question "Can stainless steel rust?", provides an overview of problems during machining, various machining methods and selection criteria for the correct tool for machining stainless steel.

10 Minutes read

Machining processes and associated surface roughness

The correct surface finish significantly influences the functionality, service life and manufacturing costs of components. In this blog, you will learn everything you need to know – from the basics of surface roughness to measurement methods and international standards to hands-on examples of how roughness is called out in drawings and what machining methods deliver the desired quality. Immerse yourself in the world of precision and find out why even micrometers can make all the difference!

8 Minutes read

Low-reflective surfaces – LTBC and other options

Reflective surfaces can cause malfunctions in certain applications and even influence the results, e.g. in quality control or dimensional inspections. This should be taken into account when selecting a surface. But how can reflections be minimized? This article presents various options for surface treatment and surface coating. Low Temperature Black Chrome Plating, LTBC or also black chrome process, is explained in particular.

10 Minutes read

Erosion and corrosion in mechanical engineering

Corrosion and erosion affect the service life and performance of components. But what is actually the difference between erosion and corrosion? What types are there? And how can these forces be counteracted? The following article examines this in more detail.

8 Minutes read
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