Solutions

With Stresstech solutions, you can improve and control the quality of your manufacturing process where material properties can change during the machining or heat treatment processes.

Residual Stress Measurement

Residual stress measurement is one essential way to find out if the component can withstand the demanding load and stress conditions in its service life.
Heat Treatment Verification

Steel gets its properties from its basic lattice structure, forming process, and heat-induced microstructural changes. Successful heat treatment, being diffusion-based, equilibrium phase transformation, or rigorously time and temperature-controlled phase transformation, is mandatory for most engineering components in demanding applications.
Grinding Burn Detection

Grinding thermal damages, also known as grinding burns, will shorten the fatigue life of critical, dynamically loaded components and can lead to severe failures. Grinding burns occur when the energy from grinding produces too much heat. Grinding burn decreases hardness and causes tensile residual stress.

Why measure residual stresses?

Manufacturing processes such as machining, welding, shot peening, heat treatment, and grinding generate residual stresses. Residual stresses, depending on their sign, magnitude and distribution, can be either beneficial or detrimental. Residual stresses are indiscernible until the visual damage happens.

For the durability of the component, it is essential to avoid the harmful effects of residual stresses and introduce the favorable ones. Residual stress measurement is applicable for product development and quality control.

Why verify heat treatment results?

Heat treatment takes place somewhere in the middle of the component manufacturing process. Unsuccessful heat treatment defaces all the processes before and after heat treatment.

Successful heat treatment cannot be verified visually. With Stresstech solutions, heat treatment defects like retained austenite can be detected non-destructively.

Why detect grinding burn?

The surface of a freshly ground component may appear to be fine, but unseen damages below the surface, when gone undetected, can lead to serious problems for the end user. The grinding process has many parameters that affect grinding quality.

Undetected grinding burn may cause

internal quality failure on production line
- extra costs: rework, scrap
external quality failure
- warranty cases
- brand value loss

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