Utility and application areas

Microfinish technology from Thielenhaus

The highest level of component precision is a prerequisite for better performance, higher operational readiness, longer service intervals and efficiency with regard to the use of energy and raw materials. Performance is greatly improved by the optimal level of surface quality and shape tolerances. This is where the Microfinish process comes into play, which is also known as Superfinish, Finishing or Short Stroke Honing.


The optimal micro-geometric and macro-geometric peak-to-valley height for your application

There is a global trend towards vehicles and engines with improved fuel utilisation. Higher revolutions and increased compression generate an increasing level of stress for numerous elements. Therefore, the most advanced design requires a production process in which all the demands stated by designers can be fulfilled. This includes precision machining, which makes it possible to achieve the optimal peak-to-valley height for specific purposes. Refined enough to avoid premature wear and tear, but rough enough to ensure the reliable lubrication of crankshaft bearings, for example.

Genuinely flat surface and flat-parallel work pieces 

Flat surfaces come in numerous aggregates, and these need to fulfil either a gliding or sealing function, and sometimes both. Often, these must be set precisely at right angles to the centreline. In many cases, the flat-parallelism of two surfaces is a requirement 

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Lenkspindel Bearbeitungsschritte

The logic is compelling: if wear-and-tear is reduced, there is necessarily an increase in the service life as well as a simultaneous decline in friction. These savings in raw materials and energy can be achieved through the use of the Microfinish process.

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In the automotive industry in particular, precision and minimal friction are requirements for greater performance, functional reliability, longevity and the careful use of energy and raw materials. The utilisation of Microfinish / Superfinish enables the manufacturing of defined, technical surfaces and work piece geometries, in order to minimise friction coefficients and improve the degree of efficiency.

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The qualitative requirements for ball, cylinder and taper roller bearings have increased significantly. Priority criteria include the obligation to save energy, the extension of guarantee periods, increased load-bearing and the trend towards smaller dimensions and simultaneously increased service life.

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Valves with finished ball valves made of steel and other materials, e.g. ceramic, meet the highest safety and environmental requirements. They are used in crude oil pipelines, nuclear reactor designs and in the chemicals industry under extreme operating conditions. Perfect geometry and surface quality guarantee the highest degree of operational reliability and longevity. 

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Modern joint surgery has witnessed medical successes, which just a few decades ago were hardly imaginable. Variations of endoprostheses, which have seen improvements in both form and service quality thanks to the Microfinish / Superfinish process, have also contributed to this success. This applies in particular to the technical optimisation of ball and socket joints.

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Thielenhaus Technologies GmbH
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