BIMAQ - Bremen
Case Study BIMAQ - Bremen

The proof of the pudding: scientists use 3D measuring technology to research production methods for metal components

Generally speaking, the city of Bremen is known for its famous Town Musicians. However, passionate engineers know that Distortion Engineering is the new brand of this Hanseatic City. The term was coined by the University of Bremen where in 2001 the special research programme 570 was created with the same name, which attracts funding from the German Research Foundation (DFG). The Bremen Institute for Metrology, Automation and Quality Science (BIMAQ) takes an active part in the programme. The Institute uses a Leitz Reference to try and find out the causes of distortion in typical automotive components. Another BIMAQ project is dedicated to wind power: it is intended that measurements of large-volume gear components provide valuable information for production optimisation.

BIMAQ can be proud to have a well-equipped measuring laboratory. In an air-conditioned measuring room with an area of 160 m2 the Institute maintains high-precision coordinate, gear wheel and roughness measuring instruments of every kind and description. This is in addition to other measuring systems for in-process testing and non-destructive edge zone analysis using tactile, optical, thermal, magnetic and acoustic gauge systems and sensors. Right in the centre is a Leitz Reference with a measuring range of 1,000 x 700 x 600 mm and the measuring software QUINDOS 7.


Scientists use the CMM for detailed studies of distortions of typical automotive gear wheel teeth. „The Collaborative Research Centre for Distortion Engineering was formed in 2001. We are now in the last of three phases and are now turning our attention to gear wheel teeth“, says Head of the Institute Prof. Dr.-Ing. Gert Goch. „We assume that distortion is the result of several interacting processes. For this reason we are studying the whole production chain of gear teeth wheels - each step, from the cast to soft gear machining through to grinding.“ The tests involve measuring 1,800 gear wheels which each represent a certain status in the multi-step production process. They were all made from the same batch of steel, they all have a diameter of 120 mm and a hole with a diameter of 45 mm. The Institute for Material Technology supports the BIMAQ in its venture. It has the necessary equipment and expertise to produce these gear wheels...

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