Big data-oriented wheel position and geometry calculation for cutting tool groove manufacturing based on AI algorithms

Abstract

Groove is a key structure of high-performance integral cutting tools. It has to be manufactured by 5-axis grinding machine due to its complex spatial geometry and hard materials. The crucial manufacturing parameters (CMP) are grinding wheel positions and geometries. However, it is a challenging problem to solve the CMP for the designed groove. The traditional trial-and-error or analytical methods have defects such as time-consuming, limited-applying and low accuracy. In this study, the problem is translated into a multiple output regression model of groove manufacture (MORGM) based on the big data technology and AI algorithms. The input are 34 groove geometry features and the output are 5 CMP. Firstly, two groove machining big data sets with different range are established, each of which is includes 46656 records. They are used as data resource for MORGM. Secondly, 7 AI algorithms, including linear regression, k nearest-neighbor regression, decision trees, random forest regression, support vector regression and ANN algorithms are discussed to build the model. Then, 28 experiments are carried out to test the big data set and algorithms. Finally, the best MORGM is built by ANN algorithm and the big data set with a larger range. The results show that CMP can be calculated accurately and conveniently by the built MORGM.

An optimized calculation method of the grinding wheel profile for the helical flute grinding

“…The helical flute is the key structure of the high-performance solid end mills [1]. In machining, the helical flute plays a crucial role in the cutting performance, chip removal and rigidity of the tool.…”

Computer-aided design system for a drill with an improved shape of the flunk surface

“…The automaticaly design system as an integral part of production and cyber-physical systems allows the use of solid models as input data for create G-code for controlling a CNC machine [7,8]. he programming of a grinding machine is depending on the shape of the working surfaces of the model, the basic geometric parameters of the drill, on the basis of which the machining scheme and the trajectory of movement of the working parts of the machine during multi-axis grinding are determined [9,10]. Laser ablation equipment is programmed by NURBS curves, which take into account the shape of the point and the surface features of the cutting wedge [11,12].…”