Abstract
This paper deals with analyzes of the influence of the perpendicularity of the spindle of the milling machine on the machined surface. This is part of the geometric errors of machine tools and in a direct manner constitutes a defect on the quality of the workpiece. Therefore, the surface roughness is particularly sensitive to the cutting speed, the feed rate, round of teeth default, the tool tip radius and the cutter teeth number. This article examines the characteristics of the surface topography of steel parts, in finishing machining using milling cutters. The study is conducted by computer simulation tests and experimental part using surface condition monitoring instruments, taking into consideration the round teeth default. The variation of the inclination of the spindle of the milling machine in three positions (90° + 30′, 90°, and 90°–30′) shows a good agreement between the simulation and the experimental results for sharp and moderately worn tools. Similarly, this study showed that the presented model could thus be integrated into systems computer-aided design and computer-aided manufacturing. Finally, the physical and statistical parameters of roughness during milling at position 90° confirmed that, when the defect of the perpendicularity is eliminated to the maximum, the best surface conditions are obtained.
Highlights
Face milling is one of the most commonly used material removal processes in the industry
The final milling surface quality is the result of the influence of a number of factors such as machine tools stability, the correct choice of cutting tools, the correct choice of cutting tools, properties of machined materials and the angle of inclination of the tool on the normal surface
By applying the end milling process to achieve the surfacing, the geometrical parameters of the tool, the cutting angles, the beam radius of the tool, and the misalignments of the teeth are taken into account
Summary
Face milling is one of the most commonly used material removal processes in the industry. A series of simulations are carried out to evaluate the performance of the model developed with the validation of results For these simulations, we are mainly interested in the theoretical roughness (third-order defect), which depends on the following essential parameters: the geometry of the cutting tool, the advance of the tool, and the number of teeth of the cutter.
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