Machining accuracy of machine tools

Productivity and accuracy of machine tools are important competition aspects. Rapidly changing operating conditions for machine tools, however, make it difficult to increase productivity and accuracy. In the manufacture of parts, increasingly small batch sizes have to be produced economically, and yet accurately. In the aerospace industry, maximum cutting capacity is needed for the roughing processes, whereas the subsequent fi nishing processes must be executed with maximum precision. For milling high-quality molds, high material removal rates are required during roughing and excellent surface quality must be obtained after fi nishing. At the same time, maximum contouring feed rates are necessary to realize the required minimum distances between the paths within acceptable machining times.

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Uniformly Digital – The new hardware design for controls from HEIDENHAIN

For many years now, controls from HEIDENHAIN have been proving themselves in daily use in the workshop. Along with their suitability for the workshop, they are also characterized by the robust and reliable design of their hardware. At this year’s EMO trade show in Hanover, HEIDENHEIN will present its vision for the controls of tomorrow.

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Fast, accurate contour milling with high surface definition

Manufacturing processes in mold and die making, as well as in aerospace technology, can be optimized through modern milling technologies like High Speed Cutting (HSC). Economic benefits, however, can only be achieved if both the machine tools and the control can handle higher traverse speeds than those used in conventional machining.

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Accuracy of feed axes

Every year’s new machine tools have been showing improvements in effi ciency and power. Increasing feed rates and acceleration values have reduced machining times. At the same time, increasing accuracy has permitted ever-closer tolerances. On the one hand, these developments enable the machining of increasingly critical parts; on the other hand they simplify the manufacture of complex assemblies. Selective manual assembly and bench work can often be reduced. Also, higher accuracy of parts normally results in improved function of component assemblies. Dimensional accuracy in motor transmissions, for example, has increased service life and reduced noise emission

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