DOI: 10.1016/J.MATLET.2012.08.119 Corpus ID: 136925990; Phase transformation in high-speed cylindrical grinding of SiC and its effects on residual stresses @article{Ni2012PhaseTI, title={Phase transformation in high-speed cylindrical grinding of SiC and its effects on residual stresses}, author={Jia Ming Ni and Beizhi Li}, …
High-speed cylindrical grinding (HSCG) is an essential method for advanced manufacturing of difficult-to-machine materials, achieving the perfect combination of high efficiency and high surface integrity. This article aims to investigate the surface layer hardness and microstructure of 18CrNiMo7-6 carburized steel in HSCG. Three CBN …
DOI: 10.1016/J.PROCIR.2015.03.080 Corpus ID: 135545681; Analysis of Measured and Predicted Residual Stresses Induced by Finish Cylindrical Grinding of High Speed Steel with CBN Wheel
Residual stresses distribution for the grinding process (2θ=139°). From the residual stress depth profiles, it can be observed that the outer surface of the workpiece …
The concept of cylindrical grinding [19][20] [21] refers to the grinding of bores and holes. Internal/External grinders are internal/external grinding tools or machine tools used for cylindrical ...
High-speed cylindrical grinding (HSCG) is an essential method for advanced manufacturing of dicult-to-machine mate- ... residual stresses, plastically deformed, microstructure, corrosion resistance, and others [13]. Improvement of surface integrity can eectively improve the fatigue performance of materials. Research of
Under the cylindrical grinding conditions applied in this study, polytype transitions of SiC occurred. The combination of the elevated grinding wheel velocity and the higher workpiece speed can reduce the phase transformation induced by the grinding process and further leads to a smaller magnitude of the residual stresses on the surface …
in the cylindrical plunge grinding Faruk Abedrabbo1,2*, Denis Soriano1, ... and residual stresses. In general, surface roughness was similar for the tested cooling systems, even after grinding ...
Stresses in Plain and Reinforced Cylindrical Grinding Wheels 157 3. REINFORCED GRINDING WHEEL As indicated in the previous Section, one way of reducing the high rotational stress in the circumferential direction would be to supply some form of constraint on the radial displacement at the bore of the grinding wheel.
X(θ) is the feed displacement of grinding wheel on the X-axis, and C is the rotation angle of workpiece on the C-axis. By taking the first derivative of X(θ), the X-axis feed speed of grinding wheel can be calculated.The data calculated by the model were incorporated into the CNC grinding machine. 2.3 Experimental system. As shown in …
Sallem and Hamdi established an FE model to understand the origin of internal residual stresses during cylindrical grinding of high-speed steel using a resin bond CBN wheel. Salonitis and Kolios focused on grind-hardening-induced residual stresses and developed an FE model coupled with thermal and elastic–plastic structural …
Only the shear stress -z3 exists in this case. All tnese stresses also change with depth. Moreover, it was found that in turninq, the seauence of machinina oDerations determines the final value of residual are measured as usual. have been determined and the former nave been stresses ; while in cylindrical grinding, these-stresses 'are 1.
Cylindrical grinding or abrasive machining is the most popular machining process of removing metal from a work piece surface in the form of tiny chips by the action of irregularly shaped abrasive particles. ... After initial start of grinding operation, stresses were induced at the center of the workpiece. Since the workpiece was supported by ...
The paper presents an experimental study on the relationship between process parameters and residual stresses in cylindrical grinding. In particular, the …
For an external cylindrical grinding, a wheel of a diameter 𝑑𝑠 rotating with a peripheral velocity 𝑣𝑠 gives a wheel depth of cut 'a' on the work piece rotating with angular velocity 𝑣𝑤 . ... After initial start of grinding operation, stresses were induced at the center of the workpiece. Since the workpiece was supported by ...
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.
Material Removal Rate and Residual Stresses in Cylindrical Grinding of Hardened OHNS . Mr. Nilesh V. Sawadekar. Mechanical . Institute Engineering of Department Deogiri Aurangabad (M.S Engineering and Management Studies), India . Prof. Jeevan J. Salunke Asst. Professor . Mechanical . Engineering Engineering Deogiri Department Institute ...
residual grinding stresses by considering the conditions of thermal loading, normal and tangential mechanical loadings, and phase transformation. Sallem and Hamdi [12]established an FE model to understand the origin of internal residual stresses during cylindrical grinding of high-speed steel using …
382 Haifa Sallem and Hédi Hamdi / Procedia CIRP 31 ( 2015 ) 381 – 386 Haifa Sallem and Hédi Hamdi / Procedia CIRP 31 ( 2015 ) 381 – 386
For several decades, LN 2 has been applied in many ways, Chattopadhyay et al. 13 were the first authors that introduced the use of LN 2 into the surface grinding process in 1985. These authors concluded that forces were diminished, and surface tensile residual stresses could be reduced compared to dry grinding process (DRY) or soluble …
For the multistage cylindrical wet grinding of AISI 4140, Florian et al. found that the pre-grinding combined with grind-strengthening could obtain a stable and high …
What is Cylindrical Grinding? Cylindrical Grinding is a process where you use a grinding wheel rotating in a horizontal axis to cut or grind a cylindrical work-piece mounted on a chuck or between …
In the competitive landscape of machining and metal part fabrication, machine shops are continually seeking ways to enhance their offerings, reduce lead times, and increase efficiency. This guide is crafted for machinists and machine shop owners looking to broaden their expertise and make strategic decisions about cylindrical …
Fig. 1 (left) shows the schematic of the external cylindrical plunge grinding operation and flat surface grinding operation by a normal grinding wheel and a structured grinding wheel. The form of the structure, showed in this figure, is an example amongst various structures which may be created on the wheel surface through an individual …
A mathematical model of grinding force and residual stress of cylindrical grinding is proposed, and the numerical and experimental verifications of 18CrNiMo7-6 …
To understand the origin of the sign of residual stresses, a Finite Element simulation model of finish cylindrical grinding with temperature dependent material …
The paper presents an experimental study on the relationship between process parameters and residual stresses in cylindrical grinding. In particular, the influence of the depth of cut (a) and the peripheral velocity of the workpiece (υ w ) was investigated. Residual stresses were found to depend on both parameters, but the …
Interestingly, the application of cryogenic coolant in the plunge cylindrical grinding shows an increment of the compressive surface residual stresses of the 27CrMn5.
A universal cylindrical grinder is a versatile type of grinding machine that is designed to handle a variety of cylindrical grinding tasks. Unlike specialized grinders for external or internal grinding, a universal cylindrical grinder is capable of both external and internal grinding operations on cylindrical workpieces.
Due to its exceptional mechanical properties, 18CrNiMo7-6 alloy steel is one of the preferred materials for producing critical components, such as high-speed heavy …
1. Introduction. Grinding is a finishing process (Pawlus et al., 2023), which holds a pivotal and widespread position across various domains (Satyanarayana and Nancharaiah, 2018), including the mechanical, automotive, aviation, aerospace, …
This work concerns the study of the evolution of residual stresses during various sequences of turning and cylindrical grinding, for a rolled XC 38 steel.Residual …
As the name suggests, cylindrical grinding precisely cuts the materials from the surface of cylindrical parts using abrasive. It is suitable for surface finishing of axially symmetric parts like rods, tubes, bushings, and rollers. This accurate grinding method can work on both internal and external cylindrical surfaces. Its precision and diversity serve …
The 3D grinding wheel is validated by analyzing the grinding force ratio. The effects of cutting depth on the grinding performance, such as grinding force, …