The Experimental Investigation of Face Grinding of Al2024/SiCp with Electroplated Diamond Wheel

2008 ◽  
Vol 392-394 ◽  
pp. 613-618
Author(s):  
D.P. Li ◽  
Ying Xue Yao ◽  
Z.J. Yuan
Keyword(s):  
Residual Stress ◽  
Experimental Investigation ◽  
Normal Force ◽  
Tangential Force ◽  
Diamond Wheel ◽  
Grinding Force ◽  
Grinding Forces ◽  
High Quality ◽  
The Face ◽  
Face Grinding

In this paper experiments of the face grinding of Al2024/SiCp through the use of electroplated diamond wheel were carried out. The results indicated that high quality processed surface was achieved by face grinding machining, under the experiment conditions of this paper, the surface roughness was between Ra0.185 μm and Ra0.512μm, and the residual stress of processed surface was compressive stress. Grinding parameter had little effect on tangential force and normal force. Axial grinding force increased with the increasing of grinding depth and was stronger than grinding forces in other two directions.

Grinding at Very Low Speed

2008 ◽  
Vol 53-54 ◽  
pp. 231-235 ◽  
Author(s):  
Bao Fu Feng ◽  
Lei Zheng ◽  
P. Wang ◽  
Quan Fang Gai ◽  
D. Li ◽  
...  
Keyword(s):  
Normal Force ◽  
Tangential Force ◽  
Grinding Force ◽  
Machining Process ◽  
Grinding Forces ◽  
Low Speed ◽  
Section Area ◽  
Force Ratio ◽  
Single Grain ◽  
Depth Increase

Grinding is a very complex machining process. Single grain grinding methods are useful to study complex grinding action. Very low speed single-grain grinding tests were carried out for 45 steel and 20Cr alloy with 14# ZA grain. The grinding groove width and depth, the grinding force ratio, specific grinding forces, and grain wear and fracture are studied. The plowing decreases with the grinding section area or grinding depth increase. The average tangential force at grain fracture in the experiments is 54.4N; the average normal force at grain fracture is 949.6N. The ratio of tangential-to-normal force varies suddenly when grain fracture.

Influences of Grinding Parameters on Forces in the Grinding of Microwave Ferrite Ceramic with Electroplated Diamond Wheel

2011 ◽  
Vol 697-698 ◽  
pp. 107-111
Author(s):  
L.P. Sun ◽  
Yu Guo Wang ◽  
Yang Yang ◽  
X.R. Yu ◽  
Bin Lin
Keyword(s):  
Feed Rate ◽  
Normal Force ◽  
Tangential Force ◽  
Diamond Wheel ◽  
Grinding Force ◽  
Wheel Speed ◽  
Cutting Depth ◽  
Grinding Parameters ◽  
The Future

Through the odd factor grinding experiment of microwave ferrite, the tangential and normal force were measured in different grinding parameters (wheel speed, feed rate, cutting depth, wheel size). According to the variation of the tangential force and normal force in different grinding parameters after grinding, the reasonable grinding parameters of microwave ferrite were explored. The results demonstrated that the grinding force had different variations in different grinding parameters. These could be the reference and guidance for the future processing of microwave ferrite materials.

Investigation of Grinding Force and Surface Integrity of IC10 in Creep Feed Grinding

2020 ◽  
Author(s):  
Jun-chen Li ◽  
Wen-hu Wang ◽  
Rui-song Jiang ◽  
Xiao-fen Liu ◽  
Huang Bo ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Material Removal ◽  
Normal Force ◽  
Removal Rate ◽  
Tangential Force ◽  
Grinding Force ◽  
Wheel Speed ◽  
Creep Feed Grinding ◽  
Creep Feed

Abstract The IC10 superalloy material is one of the most important materials for aero-engine turbine blade due to its excellent performances. However, it is difficult to be machined because of its special properties such as terrible tool wear and low machined efficiency. The creep feed grinding is widely used in machining IC10 superalloy due to the advance in reducing tool wear, improving material removal rate and surface quality. The creep feed grinding is a promising machining process with the advantages of high material removal rate due to large cutting depth, long cutting arc and very slow workpiece, and its predominant features might have significant influence on the grinding force and surface quality for the workpiece. Hence, it is of great importance to study the grinding force and surface integrity in creep feed grinding IC10 superalloy. In this paper, a series of orthogonal experiments have been carried out and the effects of grinding parameters on the grinding force and the surface roughness are analyzed. The topographies and defects of the machined surface were observed and analyzed using SEM. The results of the experiments show that the tangential force is decreased with the workpiece speed increasing. However, there is no significant change in tangential force with the increasing of grinding depth and wheel speed. The normal force is decreased with the workpiece speed increasing when the workpiece speed is less than 150 mm/min, but when the workpiece speed is more than 150 mm/min the normal force is increased tardily. Moreover, the normal force is increased sharply with the increase of grinding depth and is increased slowly with the increase of wheel speed. In general, the surface roughness is increased with workpiece speed and grinding depth increasing, while the trend of increase corresponding that of workpiece speed is more evident. The value of the surface roughness is decreased with wheel speed increasing. And it is found out that the main defect is burning of the IC10 superalloy material in creep feed grinding by energy spectrum analysis of some typical topography in this study.

scholarly journals Study on Effect of Ultrasonic Vibration on Grinding Force and Surface Quality in Ultrasonic Assisted Micro End Grinding of Silica Glass

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Zhang Jianhua ◽  
Zhao Yan ◽  
Zhang Shuo ◽  
Tian Fuqiang ◽  
Guo Lanshen ◽  
...  
Keyword(s):  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Silica Glass ◽  
Removal Rate ◽  
Surface Characteristics ◽  
Diamond Wheel ◽  
Grinding Force ◽  
Grinding Forces ◽  
Grinding Parameters ◽  
Ductile Machining

Ultrasonic vibration assisted micro end grinding (UAMEG) is a promising processing method for micro parts made of hard and brittle materials. First, the influence of ultrasonic assistance on the mechanism of this processing technology is theoretically analyzed. Then, in order to reveal the effects of ultrasonic vibration and grinding parameters on grinding forces and surface quality, contrast grinding tests of silica glass with and without ultrasonic assistance using micro radial electroplated diamond wheel are conducted. The grinding forces are measured using a three-component dynamometer. The surface characteristics are detected using the scanning electron microscope. The experiment results demonstrate that grinding forces are significantly reduced by introducing ultrasonic vibration into conventional micro end grinding (CMEG) of silica glass; ultrasonic assistance causes inhibiting effect on variation percentages of tangential grinding force with grinding parameters; ductile machining is easier to be achieved and surface quality is obviously improved due to ultrasonic assistance in UAMEG. Therefore, larger grinding depth and feed rate adopted in UAMEG can lead to the improvement of removal rate and machining efficiency compared with CMEG.

Study on Grinding Force Distribution on Cup Type Electroplated Diamond Wheel in Face Grinding of Cemented Carbide

2014 ◽  
Vol 1017 ◽  
pp. 9-14 ◽  
Author(s):  
T. Fujiwara ◽  
Shinya Tsukamoto ◽  
Kazuhito Ohashi ◽  
Takashi Onishi
Keyword(s):  
High Performance ◽  
Outer Part ◽  
Diamond Wheel ◽  
Grinding Force ◽  
Cemented Carbide ◽  
Grinding Wheel ◽  
Force Distribution ◽  
Force Variation ◽  
Face Grinding ◽  
Peak Value

In order to establish a high performance grinding method of cemented carbide, the grinding force distribution on the working surface of the cup type electroplated diamond grinding wheel is experimentally analyzed with the grinding force variation of face grinding, which is carried out on the narrow workpiece. The grinding force distribution is obtained by the successive difference of the grinding force variation. The grinding state becomes steady as soon as beginning of the interference of grinding wheel in workpiece, because the edge profile of workpiece is formed as same as the envelope of the grinding wheel. Main conclusions obtained in this study are as follows. In the region of the front edge of the grinding wheel, relatively large grinding force occurs, then in the region of the rear edge of the grinding wheel, the grinding force becomes smaller. In the left right-side end of the wheel, the grinding forces are larger than the center of the wheel. It is made clear that the grinding force distribution shows the peak value near the outer part of the wheel, and the peak value is larger in the center part of the wheel, on the contrary, the peak width become broad in both the left and right-side end of the wheel.

scholarly journals Experimental Investigation on Face Grinding of 2024AI/SiCp with Electroplated Diamond Wheel

2020 ◽  
Vol 1605 ◽  
pp. 012138
Author(s):  
Wang Shaolei ◽  
Shi Shuzheng ◽  
Wang Jiuqiang ◽  
Li Xin ◽  
Wang Zhanying ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Diamond Wheel ◽  
Face Grinding

Finite Element Method Modeling Approaches in Grinding

2011 ◽  
Vol 188 ◽  
pp. 368-371
Author(s):  
H.L. Zhang ◽  
H. Guo
Keyword(s):  
Finite Element ◽  
Tangential Force ◽  
Three Dimensional ◽  
Element Model ◽  
Grinding Force ◽  
Wheel Speed ◽  
Grinding Forces ◽  
Force Increase ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

In the present paper, a three-dimensional finite element model was used for simulating the grinding force at different cutting conditions. The effects of the wheel speed, feed and grinding depth on the grinding force per unit width were analyzed in detail. The results show that both the normal force and tangential force increase linearly with the increasing of feed and grinding depth, however, with the increasing of wheel speed, the grinding force decreases gradually. The predicted normal and tangential grinding forces were compared with those experimentally obtained and the results show reasonable agreement quantitatively.

A Study on Ultrasonic Assisted Grinding of Nickel-Based Superalloys

2013 ◽  
Vol 797 ◽  
pp. 356-361
Author(s):  
Wen Qing Song ◽  
Yong Bo Wu ◽  
Jian Guo Cao ◽  
Jing Ti Niu
Keyword(s):  
Surface Roughness ◽  
Grinding Wheel ◽  
Grinding Forces ◽  
Work Surface ◽  
Ultrasonic Assisted Grinding ◽  
Nickel Based Superalloy ◽  
Ultrasonic Assisted ◽  
The Face ◽  
Cbn Grinding Wheel ◽  
Face Grinding

Ultrasonic assisted grinding experiments were carried out to evaluate the effects of the ultrasonic vibration (UV) on the face grinding characteristics of nickel based superalloy of Rene77. In experiments, an electroplated cBN grinding wheel was ultrasonically vibrated dominantly along its axis. The experimental results indicated that the X-axis and Y-axis components of grinding forces with UV were smaller by 44.5% and 31.6%, respectively, than those without UV. The usual fractures and debris on the surface of workpiece disappeared and the work-surface roughness Ra was decreased by 42.3% once the UV was applied. The abrasion of the grinding wheel without UV is more serious than that with UV.

Analysis and Experimental Investigation of Grinding Force in Ultrasonic Vibration Mill-Grinding of Brittle Materials

2013 ◽  
Vol 568 ◽  
pp. 3-8
Author(s):  
Guo Chao Qiao ◽  
Guo Jun Dong ◽  
Ming Zhou
Keyword(s):  
Experimental Investigation ◽  
Silicon Nitride ◽  
Ultrasonic Vibration ◽  
Grinding Force ◽  
Force Model ◽  
Machining Parameters ◽  
Indentation Fracture ◽  
Grinding Forces ◽  
Nitride Ceramics ◽  
Vibration Mill

Based on the Kinematic analysis, the indentation fracture mechanics is used to build a force model of ultrasonic vibration mill-grinding. To verify the force model, experiments are carried out for silicon nitride ceramics with various machining parameters, meanwhile grinding forces are measured. Finally, comparison between predicted results with experimental results is presented.

An Experimental Investigation of Ultrasonic Assisted Grinding in DOE Approach

2012 ◽  
Vol 565 ◽  
pp. 129-134 ◽  
Author(s):  
Kyeong Tae Kim ◽  
Yun Hyuck Hong ◽  
Kyung Hee Park ◽  
Young Jae Choi ◽  
Seok Woo Lee ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Ultrasonic Vibration ◽  
Feed Rate ◽  
Rotation Speed ◽  
Grinding Force ◽  
Machining Parameters ◽  
Grinding Forces ◽  
Ultrasonic Assisted Grinding ◽  
Ultrasonic Assisted ◽  
Conventional Grinding

In this work, grinding test was performed in terms of machining parameters, such as grinding speed, feed rate, etc., in order to study effect of ultrasonic vibration in grinding. The design of experiment (DOE) approach was used for an optimal condition of ultrasonic assisted grinding, which can minimize the grinding forces. In DOE, ultrasonic amplitude power, feed rate, and rotation speed of spindle were chosen as the major machining factors. The grinding forces were measured and compared between the conventional grinding and ultrasonic assisted grinding. From the experiment, it was found that the grinding forces decreased as the ultrasonic vibration power and the rotation speed of spindle increased while the grinding force was reduced as the feed rate increased. In addition, regression model was formulated for obtaining optimal grinding condition.

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