Study on three-dimensional topography modeling of the grinding wheel with image processing techniques

Kang, Mingxia; Zhang, Lu; Tang, Wencheng

doi:10.1016/j.ijmecsci.2019.105241

Cited by 24 publications

(15 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…From a scanning electron microscope (SEM) of the abrasive grain morphology obtained in our previous work, the AAG shape after dressing is simplified into an arbitrary pyramid which is expressed in [27]. According to the AAG volume ratio t 1 and apex angle α identified by image processing techniques, the protruding height h and width a of an AAG are…”

Section: A the Shape And Size Of The Aagmentioning

confidence: 99%

“…Thus, R is ranging from 62.5 µm to 80 µm. To ensure the accuracy of results, α is extracted from six different areas of each grinding wheel, as described in [27]. It follows a normal distribution whose mean value and standard deviation are 81.2841, 21.6540, respectively.…”

Section: A the Shape And Size Of The Aagmentioning

confidence: 99%

“…During the grinding process, the heights of abrasive particles are gradually reduced to a more uniform value because of the AAG wear. According to the wheel experiments before and after grinding carried out by Kang et al [27], the abrasive grain after dressing with a height of more than 87 µm is AAG. AAG number and density are shown in Table 1 after analyzing six different locations areas of each wheel with the same size 793 µm × 586 µm.…”

Section: B the Density And Distribution Of Aagmentioning

confidence: 99%

“…To avoid the concentrated phenomenon that abrasive particles are overlapped or separated, a method of randomly distributed in the circumferential direction of the grinding wheel and evenly distributed in its axial direction is proposed. The acquired distance between two adjacent abrasive grains in the circumferential direction and the axial direction are expressed in (63, 65, 67, 69), respectively by Kang et al [27]. Since chips are generated by grinding motions of the interference parts between AAGs and workpiece, the shape, size, distribution or density of chips can be further investigated after determining that of the abrasive grain.…”

Section: B the Density And Distribution Of Aagmentioning

confidence: 99%

“…where, h UCT refers to the maximum thickness of the chip produced by a single abrasive grain, which is equivalent to h MUCT . From the spatial coordinates of five apexes of a random and arbitrary pyramid presented by Kang et al [27], CED1, CED2, CED3, CED4 can be calculated as below.…”

Section: B the Chip Width Generated By A Single Aagmentioning

confidence: 99%

See 4 more Smart Citations

Modeling of the Distribution of Undeformed Chip Thickness Based on the Real Interference Depth of the Active Abrasive Grain

2020

Self Cite

View full text Add to dashboard Cite

Distribution of the maximum undeformed chip thickness can be approximated as the reproduction of grooves and protrusions of the grinding surface. It plays a very important role in grinding process as it has a close influence on the prediction and modeling of grinding forces, tool life, and surface quality, as well as process stability. In this study, it is investigated from the perspective of the real interference depth of the active abrasive grain to cater to the performance evaluation of the grinding surface. Firstly, image processing techniques combined with three dimensional topography tests are utilized to extract grains' essential characteristics such as the protrusion height, shape, distribution and density. Then, grains' wear is quantified by the probability assignment function and Dempster-Shafer evidence theory. Based on this, the actual interference depth of a single grain is determined. Through grain's kinematics analysis and considering the effect of contact deformation on the actual contact arc length and affective cutting edge density, the distribution of chip thickness in the current grinding area is defined and its distribution model is established. Model's correctness and rationality are verified by grinding experiments of the slider raceway. Results demonstrate the grain's interference depth highly depends on its protrusion height, wear amount and grinding depth which is a primary contributor to the size of undeformed chip thickness, and grains' density, contact deformations mainly affect its distribution. The quantified distribution model of the maximum undeformed chip thickness lays a foundation for the topography modeling and integrity research of grinding surfaces. INDEX TERMS Abrasive particles wear, active cutting edges, grinding, image processing, interference depth, protrusion height, undeformed chip thickness.

show abstract

Section: A the Shape And Size Of The Aagmentioning

confidence: 99%

Section: A the Shape And Size Of The Aagmentioning

confidence: 99%

Section: B the Density And Distribution Of Aagmentioning

confidence: 99%

Section: B the Density And Distribution Of Aagmentioning

confidence: 99%

Section: B the Chip Width Generated By A Single Aagmentioning

confidence: 99%

See 3 more Smart Citations

Modeling of the Distribution of Undeformed Chip Thickness Based on the Real Interference Depth of the Active Abrasive Grain

2020

Self Cite

View full text Add to dashboard Cite

show abstract

A prediction model of residual stress for belt‐grinding blade based on geometrical characteristic and progressive wear of abrasive grains

Wang

Lai

et al. 2022

Numerical Meth Engineering

View full text Add to dashboard Cite

The formation mechanism of residual stress on the machined surface of belt grinding is sophisticated, and residual stress is an important factor affecting the fatigue life of aero‐engine blades. In this study, a prediction model of residual stress in a belt grinding blade is proposed with the geometrical characteristics and progressive wear of the grains as the research topic. By extracting the morphological features of abrasive belt, the residual stress based on different geometrical characteristics of grains (pyramidal, hexahedral, spherical, and conical belts) were investigated, and the optimal grain geometry was determined to be a uniformly arranged positive quadrilateral cone. Accordingly, a grinding experiment with a pyramidal belt was conducted to obtain an experienced model of the grain wear height. A numerical simulation model of the grain wear evolution under four wear states (no abrasion, early abrasion, middle abrasion, and late abrasion) was developed. Additionally, more detailed progressive wear of the abrasive grains was also applied to grind the entire profile of the complex curved blade. The residual stress on the blade surface was mainly compressive, and the surface stress values were distributed between −385 and −117 MPa with the service life of the pyramidal abrasive belt.

show abstract

A Novel Approach for Surface Topography Simulation Considering the Elastic-Plastic Deformation of a Material During a High-precision Grinding Process

Chen

Jin

2022

Proceeding of 2021 International Conference on Wireless Communications, Networking and Applications

View full text Add to dashboard Cite

A novel simulation approach for 3D surface topography that considers the elastic-plastic deformation of workpiece material during a high-precision grinding process is presented in this paper. First, according to the kinematics analysis for the abrasive grain during the grinding process, the motion trajectory of the abrasive grain can be calculated. Second, the kinematic interaction between the workpiece and the abrasive grains can be established, which integrates the elastic-plastic deformation effect on the workpiece material with the topography, the simulation results are more realistic, and the simulation precision is much higher. Finally, based on an improved surface applied to the grinding wheel, the surface topography of the workpiece is formed by continuously iterating overall motion trajectories from all active abrasive-grains in the process of high-precision grinding. Both the surface topography and the simulated roughness value of this work are found to agree well with those obtained in the experiment. Based on the novel simulation method in this paper, a brand-new approach to predict the quality of the grinding surface by providing machining parameters, selecting effective machining parameters, and further optimizing parameters for the actual plane grinding process, is provided.

show abstract

Study on three-dimensional topography modeling of the grinding wheel with image processing techniques

Cited by 24 publications

References 35 publications

Modeling of the Distribution of Undeformed Chip Thickness Based on the Real Interference Depth of the Active Abrasive Grain

Modeling of the Distribution of Undeformed Chip Thickness Based on the Real Interference Depth of the Active Abrasive Grain

A prediction model of residual stress for belt‐grinding blade based on geometrical characteristic and progressive wear of abrasive grains

A Novel Approach for Surface Topography Simulation Considering the Elastic-Plastic Deformation of a Material During a High-precision Grinding Process

Contact Info

Product

Resources

About