Measurements of Surface Texture Parameters After Ultrasonic Assisted and Conventional Grinding of ZrO2 Based Ceramic Material Characterized by Different States of Sintering

Wdowik, Roman; Porzycki, J.; Magdziak, Marek

doi:10.1016/j.procir.2016.06.049

Cited by 21 publications

(4 citation statements)

References 12 publications

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“…It can be used for the measurements of microgeometry. The surface texture parameters can be also measured [15,17] on the basis of scanned surfaces. It is not possible to measure the entire chip during one scan.…”

Section: The Aim and Methods Of The Studymentioning

confidence: 99%

Application of Focus-Variation Technique in the Analysis of Ceramic Chips

Wdowik

Świrad

2019

MSF

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The paper presents the method of a microscopic study of ceramic chips which can be useful in the analysis of physical phenomena regarding machining of ceramic materials. The analyzed chips were obtained on the milling machine tool from the Al2O3 based ceramic material. The measurements were performed using focus-variation technique (FVT). The InfiniteFocus Real3D microscope from Alicona Imaging company was applied. The paper mainly focuses on the methodology of measurements and the application of microscope’s software tools which can be used in the analysis of chips' 3D scans. The conditions of measurement process are discussed on the basis of the results of exemplary measurements of ceramic chips.

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Section: The Aim and Methods Of The Studymentioning

confidence: 99%

Application of Focus-Variation Technique in the Analysis of Ceramic Chips

Wdowik

Świrad

2019

MSF

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“…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]. The grinding wheel generates a small cutting force because the grinding wheel employs many small cutting edges instead of one or a few large cutting edges like those used in milling.…”

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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“…This is because while machining, it needs a high force and generates high heat, hence the change of the surface material behaviour. Alternatively, non-conventional machining such as Abrasive Water Jet (AWJ), Laser, Rotary Ultrasonic [5], and Electro Discharged machining (EDM) [6] has resulted in good Ra quality, without the need for manual polishing. Unfortunately, AWJ requires a great cost for slurry application and Laser machining needs high energy usage, making these machining uneconomical for manufacturers.…”

Section: Introduction (Heading 1)mentioning

confidence: 99%

Multi-Objective Optimization of Input Machining Parameters to Machined AISI D2 Tool Steel Material

Hashim

Razak

Yusoff

2023

IJCIT

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Poor surface finish on die and mould transfers the bad quality to processed parts. High surface roughness is an example of bad surface finish that is normally reduced by manual polishing after conventional milling machining process. Therefore, in order to avoid disadvantages by manual polishing and disadvantage by the machining, a sequence of two machining operations is proposed. The main operation is run by the machining and followed by Rotary Ultrasonic Machining Assisted Milling (RUMAM). However, this sequence operation requires optimum input parameters to generate the lowest surface roughness. Hence, this paper aims to optimize the input parameters for both machining operations by three soft-computing approaches – Genetic Algorithm, Tabu Search, and Particle Swarm Optimization. The method adopted in this paper begins with a fitness function development, optimization approach usage and ends up with result evaluation and validation. The soft-computing approaches result outperforms the experiment result in having minimum surface roughness. Based on the findings, the conclusion suggests that the lower surface roughness can be obtained by applying the input parameters at maximum for the cutting speed and vibration frequency, and at minimum for machining feed rate. This finding assists manufacturers to apply proper input values to obtain parts with minimum surface roughness.

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Measurements of Surface Texture Parameters After Ultrasonic Assisted and Conventional Grinding of ZrO2 Based Ceramic Material Characterized by Different States of Sintering

Cited by 21 publications

References 12 publications

Application of Focus-Variation Technique in the Analysis of Ceramic Chips

Application of Focus-Variation Technique in the Analysis of Ceramic Chips

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

Multi-Objective Optimization of Input Machining Parameters to Machined AISI D2 Tool Steel Material

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