Measurements of surface texture parameters after ultrasonic assisted and conventional grinding of carbide and ceramic samples in selected machining conditions

Wdowik, Roman

doi:10.1016/j.procir.2018.09.046

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…Additionally, it facilitates the easy penetration of radio waves, resulting in stronger signals for Wi-Fi, LTE, or Bluetooth without the need for lengthy antenna cutouts [6]. Unfortunately, the hard and brittle properties of Zirconia ceramics have redoubled the machining difficulties used in these applications, and surface finishing and accuracy are of the utmost importance [7,8]. The grinding process is almost the only suitable process to duly machine Zirconia and is the proficient choice for machining hard and brittle ceramics [9].…”

Section: Introductionmentioning

confidence: 99%

Micro-Grinding Parameter Control of Hard and Brittle Materials Based on Kinematic Analysis of Material Removal

Manea,

Lu,

Liu

et al. 2024

Mathematics

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This article explores the intricacies of micro-grinding parameter control for hard and brittle materials, with a specific focus on Zirconia ceramics (ZrO2) and Optical Glass (BK7). Given the increasing demand and application of these materials in various high-precision industries, this study aims to provide a comprehensive kinematic analysis of material removal during the micro-grinding process. According to the grinding parameters selected to be analyzed in this study, the ac-max values are between (9.55 nm ~ 67.58 nm). Theoretical modeling of the grinding force considering the brittle and ductile removal phase, frictional effects, the possibility of grit to cut materials, and grinding conditions is very important in order to control and optimize the surface grinding process. This research introduces novel models for predicting and optimizing micro-grinding forces effectively. The primary objective is to establish a micro-grinding force model that facilitates the easy manipulation of micro-grinding parameters, thereby optimizing the machining process for these challenging materials. Through experimental investigations conducted on Zirconia ceramics, the paper evaluates a mathematical model of the grinding force, highlighting its significance in predicting and controlling the forces involved in micro-grinding. The suggested model underwent thorough testing to assess its validity, revealing an accuracy with average variances of 6.616% for the normal force and 5.752% for the tangential force. Additionally, the study delves into the coefficient of friction within the grinding process, suggesting a novel frictional force model. This model is assessed through a series of experiments on Optical Glass BK7, aiming to accurately characterize the frictional forces at play during grinding. The empirical results obtained from both sets of experiments—on Zirconia ceramics and Optical Glass BK7—substantiate the efficacy of the proposed models. These findings confirm the models’ capability to accurately describe the force dynamics in the micro-grinding of hard and brittle materials. The research not only contributes to the theoretical understanding of micro-grinding processes but also offers practical insights for enhancing the efficiency and effectiveness of machining operations involving hard and brittle materials.

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Section: Introductionmentioning

confidence: 99%

Micro-Grinding Parameter Control of Hard and Brittle Materials Based on Kinematic Analysis of Material Removal

Manea,

Lu,

Liu

et al. 2024

Mathematics

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“…Several surface engineering-related studies focus on the effects of machining process parameters [33], the peak zone analysis and its effects on surface functionality, and the characteristics of the valley zone from the aspect of lubricant retention ability [34,35]. Various technologies that are suitable to create tribologically favorable surfaces are studied widely, including shot peening [36], milling [37,38], ball burnishing [39], ultrasonic assisted griding [40], turning [41,42], rotational turning [43,44], and grinding [45]. Velázquez Corral et al…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Tribology-Related Topography Parameters of Hard-Turned and Ground 16MnCr5 Surfaces

Molnár

2023

Lubricants

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Several surface topography parameters are available for the quantification of tribological properties of machined surfaces. Although these parameters and their influences are widely studied, there are contradictory findings due to the nature of the topography parameters, i.e., the behavior of different materials and cutting tool interactions lead to relatively varying numerical results. A comprehensive study of these interactions can contribute to more exact industrial machining applications. In this study, tribology-related 3D topography parameters of hard-machined (hard-turned and ground) surfaces were analyzed. The machining experiments were carried out based on a detailed design of the experiment; the analyzed material was case-hardened low-carbon content steel, which is widely used for automotive, industrial components such as bearings or gears. From the topography data, response function, correlation, and relative deviation analyses were carried out for the analyzed topography parameters, and tribology maps were created to support the selection of optimal cutting parameter values.

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“…However, the ultrasonic vibration of many devices is superimposed on the workpiece, which is lack of process universality [18][19][20][21][22]. Even if the ultrasonic vibration is superimposed on the abrasive tools, the maximum diameter of abrasive tools is only 50mm [23][24][25][26][27]. The small size of abrasive tools limits the processing e ciency.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the longitudinal-flexural resonating spindle in ultrasound-assisted grinding of SiCp/Al composites

Qin

Zhu

et al. 2022

Int J Adv Manuf Technol

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Rotary ultrasonic machining is a cost-effective and precise machining method for hard and brittle materials. Aiming at processing SiCp/Al composites, a rotary ultrasonic grinding spindle is proposed in the present study. Expressions were established to calculate the displacement, rotation angle, bending moment, and shear force of the vibrating elements based on the Mindlin moderate plate theory. Combining continuous and boundary conditions of vibrating elements with the proposed expressions, the vibration model and frequency equation of longitudinal-exural resonating transformer with a large load were established. Then two transformers were designed according to the frequency equation. The resonant characteristics of the transformers were studied using nite element analysis, impedance analysis, and ultrasonic resonance experiments. The obtained results show that the maximum deviation between the resonant frequency and the design frequency of the transformers was 4.95%. Moreover, the maximum deviation of the positions of the pitch circles was 6.51%. It is concluded that the proposed designs have high accuracy. Finally, the orthogonal single-factor experiments of SiCp/Al composites were performed with and without ultrasound. The obtained resultsshow that introducing ultrasonic vibrations signi cantly reduces the grinding force and the surface roughness while improving the surface quality of the SiCp/Al workpiece. The present study is expected to provide experimental fundamentals to further improve the structure of the grinding spindle, optimize process variables of ultrasound-assisted grinding, and improve the processing e ciency.

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Measurements of surface texture parameters after ultrasonic assisted and conventional grinding of carbide and ceramic samples in selected machining conditions

Cited by 9 publications

References 8 publications

Micro-Grinding Parameter Control of Hard and Brittle Materials Based on Kinematic Analysis of Material Removal

Micro-Grinding Parameter Control of Hard and Brittle Materials Based on Kinematic Analysis of Material Removal

Experimental Investigation of Tribology-Related Topography Parameters of Hard-Turned and Ground 16MnCr5 Surfaces

Investigation of the longitudinal-flexural resonating spindle in ultrasound-assisted grinding of SiCp/Al composites

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