Investigation on experiment and simulation of the grinding process of cast iron

Tu, Lihui; Li, Jianqiang; Shi, Weimin

doi:10.1177/0954406220907928

Cited by 3 publications

(1 citation statement)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ding et al [42] performed DEFORM-3D simulation with a tangible grinding wheel model to simulate the rail grinding process. Based on plane-strain grinding simulation, Tu et al [43] studied the effects of grinding parameters on surface integrity. Chen et al [44] established a tangible grinding wheel in finite element software to study the high-speed cylindrical grinding process of difficult-to-machine materials.…”

Section: Introductionmentioning

confidence: 99%

A mathematical model for the cylindrical grinding responses of 18CrNiMo7-6 alloy steel

Zhang,

Lu,

et al. 2023

Preprint

View full text Add to dashboard Cite

Due to its exceptional mechanical properties, 18CrNiMo7-6 alloy steel is one of the preferred materials for producing critical components of high-speed heavy-duty gearboxes. To study the relationship between cylindrical grinding parameters, i.e., workpiece speed, wheel speed and grinding depth, and grinding responses (grinding force, temperature and surface residual stress), dimensional analysis and finite element simulation of cylindrical grinding for 18CrNiMo7-6 alloy steel are performed. A mathematical model of grinding force and residual stress of cylindrical grinding is proposed, and the numerical and experimental verifications of 18CrNiMo7-6 cylindrical alloy steel are carried out. Numerical verification shows that the maximum relative errors of grinding force and residual stress models are 7.9% and 11.2%, respectively. The experimental results reveal that the maximum absolute errors were 1.31 N and 33.7 MPa, respectively. The results indicate that the proposed model could be used as a guide for practical grinding operation, which is helpful to optimize machining parameters, improve production efficiency and ensure high quality machining results.

show abstract

Section: Introductionmentioning

confidence: 99%

A mathematical model for the cylindrical grinding responses of 18CrNiMo7-6 alloy steel

Zhang,

Lu,

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Establishment and verification of a prediction model for the grinding force and residual stress in cylindrical grinding of 18CrNiMo7-6 alloy steel

Zhang,

Lu,

et al. 2024

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Mathematical modeling of the surface roughness of the grinding wheel during straightening

Strelchuk¹,

Trokhimchuk²

2021

Nauk. visn. nat. hirn. univ.

View full text Add to dashboard Cite

Purpose. Research on the mechanism of influence of the straightening conditions of the grinding wheel, including the relative oscillations of the wheel and a multipoint diamond dresser, on the roughness of the ground surface and other machining results. Methodology. Straightening a grinding wheel with a multipoint diamond dresser is a process of high-speed destruction of a hard, abrasive material and its bond under the instantaneous forces, abrasive grains with a hard surface of a diamond crystal. During the grinding wheel straightening, the total component of normal forces causes correspondingly less elastic deformations in the wheel straightening tool system, which increases the accuracy of the geometric shape of the grinding wheel working surface. Findings. The research results make it possible to determine the parameters of the surface roughness of a workpiece and to find ways to control it to increase the efficiency of the grinding process. Originality. The regularities of the influence of the grinding wheel straightening conditions on the state of its working surface have been established. The paper shows that the initial arrangement of grains along the normal to the surface of the wheel is determined by its characteristics. When the abrasive grains hit the surface of the straightening tool, some of the vertices are chipped off, as a result of which the density of the grain vertices on the outer surface of the wheel increases. The straightening process was further developed in the direction of the non-uniform character of the location of the vertices of abrasive grains. The distribution of the grain position at the wheel bond depends on the straightening conditions. Since the removal of the allowance in the process of grinding is carried out by the most protruding grain vertices, then, consequently, the result of grinding will depend on their location and the conditions for the wheel straightening. Practical value. Application of the research results obtained in the work, namely, mathematical modeling of the surface roughness of the grinding wheel during straightening, makes it possible to calculate the roughness parameter of the ground surface. The work also shows that the level of chipping of the grain vertices depends on the grinding wheel straightening conditions, in particular, on the value of the axial feed of the straightening tool. In this case, lower stresses arise in the grains and the bond, and the tool works as a harder one. Straightening conditions affect the stability of the grinding wheel and its self-sharpening process in the machining zone. This determines the significant role of straightening in the results of the grinding process.

show abstract

Investigation on experiment and simulation of the grinding process of cast iron

Cited by 3 publications

References 26 publications

A mathematical model for the cylindrical grinding responses of 18CrNiMo7-6 alloy steel

A mathematical model for the cylindrical grinding responses of 18CrNiMo7-6 alloy steel

Establishment and verification of a prediction model for the grinding force and residual stress in cylindrical grinding of 18CrNiMo7-6 alloy steel

Mathematical modeling of the surface roughness of the grinding wheel during straightening

Contact Info

Product

Resources

About