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

Li, Guochao; Liu, Zhigang; Lu, Jie; Zhou, Honggen; Sun, Lishan

doi:10.1007/s00170-022-08749-5

Cited by 10 publications

(3 citation statements)

References 21 publications

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“…However, calculating the wheel position by solving the equations numerically is time-consuming and the solution is sensitive to the initial value. Besides the methods mentioned above, Li et al applied the niche particle swarm optimization (NPSO) algorithm [13] and big data technology [14] to determine the wheel position and geometry simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Wheel path planning for flute grinding of non-cylindrical solid end-mills based on circular arc projection

Ren,

Zhang,

et al. 2024

Preprint

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Flute grinding is a crucial process in solid end-mill manufacturing, because the generated flute parameters, i.e. helix angle, rake angle, core radius, and flute width, have significant effects on the cutting performance of end-mills. However, the flute grinding of non-cylindrical solid end-mills is still challenging due to the variable flute parameters along the tool axis. This paper proposes an accurate and efficient method of wheel path planning for flute grinding of non-cylindrical solid end-mills based on circular arc projection. The wheel path determined by the new method can accurately generate the designed variable helix angle, variable rake angle, variable core radius, and variable flute width. The rake angle is guaranteed by the conjugate condition between the wheel surface and the cutting-edge curve. Equivalent errors of core radius and flute width are introduced in this work based on circular arc projection. The accuracy of the two parameters is ensured by minimizing the sum of squares of the two equivalent errors. Simulations and experiments are conducted to validate the method. Three types of non-cylindrical end-mills i.e. tapered end-mill, tapered barrel end-mill, and barrel end-mill, are considered in the validation. The measured results indicate that the generated flute parameters coincide well with the designed ones at different axial positions of the end-mills.

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Section: Introductionmentioning

confidence: 99%

Wheel path planning for flute grinding of non-cylindrical solid end-mills based on circular arc projection

Ren,

Zhang,

et al. 2024

Preprint

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show abstract

“…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.…”

Section: Introductionmentioning

confidence: 99%

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

Jiang¹,

Yang²,

Li³

et al. 2023

Preprint

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Forming grinding process is a crucial method for grinding the helical flute of end mills, and the calculation of the grinding wheel profile is the key to ensure the precision of the helical flute, which is constrained by grinding wheel posture and helical flute profile. However, the current calculation method has not done enough research on the estimation of the feasibility and validity of the grinding wheel profile, which could lead to contradiction between theoretical calculations and practical application. In this paper, an optimized calculation method of the grinding wheel profile for the helical flute forming grinding is proposed, which includes the calculation, analysis and optimization process. Firstly, the parameters of the helical cutting edge and the flute surface are defined, and accurate geometrical models are established. Secondly, the contact condition between the grinding wheel and the flute surface is deduced to calculate the grinding wheel profile by the envelop theory. Thirdly, an optimization method, including profile optimization and grinding wheel wear optimization, is proposed for the calculation of the grinding wheel profile. Finally, the method is verified by simulation machining and the results show that the method can improve the grinding precision and expand the application range of forming grinding technology in helical flute grinding.

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“…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].…”

Section: Introductionmentioning

confidence: 99%

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

Pivkin,

Ershov,

Grechishnikov

et al. 2023

Advanced Laser Processing and Manufacturing VII

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In this paper, a new system for designing drills with a full parametric cycle of connection of the main parameters of the rear surface of the drill, based on the identified functional relationships between the parameters of the original tool surface and the kinematics of the movement of the drill tooth. For the first time, a mechanism for determining the shape of the back surface of a three-tooth drill with the possibility of regrinding by various methods has been established. This work will allow not only to develop design support for tool production, but also to create a system for the automatic production of three-tooth drills and writing control programs for CNC machines. The work is the first to propose an analytical mathematical model for solving the solve problem of profiling the helical groove of a twist drill and cutting edges, which is the main stage in the design of a new class of drills with a toroidal cutting surface. For the first time, a study of the field of change in the rake angle and the normal rake angle in the region of the generating surface was carried out. As a result, it was found that in the f range from [-1.2; 1] the normal rake angle γN for almost the entire length of the section takes values in the range [20°; 32°], with a displacement of the cutting edge f by a distance of 2.8 mm, it will be possible to obtain the geometry of the helical surface on the cutting surface in a constant range from 32° with a tolerance range of 2°.

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

Cited by 10 publications

References 21 publications

Wheel path planning for flute grinding of non-cylindrical solid end-mills based on circular arc projection

Wheel path planning for flute grinding of non-cylindrical solid end-mills based on circular arc projection

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

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

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