Lars Langenhorst, Jens Sölter
Cylindrical workpieces made of AISI 4140 steel and A97075 aluminum alloy were machined in an external longitudinal turning process using uncoated cemented carbide cutting tools without metal working fluid. During machining, the process forces were measured by means of piezoelectric sensors within a dynamometer. In addition, temperature on the workpiece surface was measured using infrared thermography. The dataset provides the process forces as raw data over the process time, along with the calculated mean values and standard deviations for each test point within the investigated design of experiments, in which the depth of cut, spindle rotation speed, and feed rate are varied. The process temperatures measured along a focused line in feed direction are also provided as raw data and mean values over time and corresponding uncertainty for all experiments. In metal cutting, an understanding of the process forces, which act as external loads on the workpiece, and the workpiece temperature, as an internal material load, is closely linked to the subsequent functional performance of the final component. Reuse potential thus lies primarily in explaining modifications of material properties in the surface layer of the workpiece and its geometric deviations due to cutting and also in using the data for validation of modelling approaches. For analyzing tool wear, process forces and temperatures are also important factors. This dataset enables such analyses without having to repeat the time-consuming calibration of temperature measurement systems and preparation of machining tests.