Study on Grinding Force Model in Ultrasonic Vibration Assisted Grinding for Ductile Materials

2013 ◽  
Vol 770 ◽  
pp. 207-212
Author(s):  
Yan Wang ◽  
Bin Lin ◽  
Shao Lei Wang ◽  
Xiao Yan Cao
Keyword(s):  
Ultrasonic Vibration ◽  
Removal Rate ◽  
Grinding Force ◽  
Force Model ◽  
Frequency Increase ◽  
Ductile Materials ◽  
Grinding Force Model ◽  
Force Increase ◽  
Force Ratio ◽  
Ultrasonic Vibration Assisted Grinding

Ultrasonic vibration Assisted Grinding (UAG) is an effective processingmethod for difficultmachiningmetalmaterial.This paper put forward a new model to predict the grinding force in UAG. The paper presents the abrasive grain motion equations, removal rate model,grinding force model and grinding force ratio model.According to the grinding force model, the grinding force will decrease as the spindle speed, vibration amplitude and vibration frequency increase. The grinding force increase as the grinding depth and feed rate increase.

Grinding Force of Ultrasonic Vibration Assisted Grinding Combined with EDM

2012 ◽  
Vol 500 ◽  
pp. 287-294 ◽  
Author(s):  
Peng Yan ◽  
Jian Hua Zhang ◽  
Guo Sheng Su
Keyword(s):  
Ultrasonic Vibration ◽  
Pulse Discharge ◽  
Processing Parameters ◽  
Grinding Force ◽  
Force Model ◽  
Grinding Process ◽  
Machining Parameters ◽  
Processing Efficiency ◽  
Machined Surface ◽  
Ultrasonic Vibration Assisted Grinding

In the ultrasonic vibration assisted grinding and EDM, grinding and pulse discharge machining are favorable conditions for each other, can significantly improve the processing efficiency by adjusting the processing parameters, and get high-quality machined surface. The grinding force is an important parameter in characterizing the grinding process, which is the g the main object of study in grinding process. The interaction of ultrasonic vibration, grinding and EDM is investigated. From the view of material removal volume, the volume of removal by EMD is calculated. Then the volume by grinding is gotten. The grinding force model of combined machining is established. The influence machining parameters on grinding force is studied, which is helpful for the detection and control of grinding force.

Study on the Cutting Deforming Force of Single Abrasive Grit for Ultrasonic Vibration Assisted Grinding along Normal Direction

2010 ◽  
Vol 102-104 ◽  
pp. 615-619 ◽  
Author(s):  
Hong Li Zhang ◽  
Jian Hua Zhang
Keyword(s):  
Cutting Force ◽  
Ultrasonic Vibration ◽  
Brittle Material ◽  
Grinding Force ◽  
Normal Direction ◽  
Kinematics Analysis ◽  
Cutting Depth ◽  
Force Ratio ◽  
Conventional Grinding ◽  
Ultrasonic Vibration Assisted Grinding

Based on the kinematics analysis and the cutting depth calculation of single abrasive grit, the mathematics models of the cutting deforming force and the average cutting deforming force were made by introducing the unit grinding force, Fu. And the formula of the average cutting force during the grinding zone was calculated. The experiments on the grinding force ratio were conducted under conventional grinding(CG) mode and normal ultrasonic vibration assisted grinding(NUAG) mode. The results showed that the unit grinding force in NUAG was lower than that in CG under the same machining condition; the grinding force ration was decreased due to the normal ultrasonic vibration of the workpiece. And it was helpful to improve the machinablity of the hard-brittle material.

Physics-Based Predictive Cutting Force Model in Ultrasonic-Vibration-Assisted Grinding for Titanium Drilling

2009 ◽  
Vol 131 (4) ◽  
Author(s):  
Na Qin ◽  
Z. J. Pei ◽  
C. Treadwell ◽  
D. M. Guo
Keyword(s):  
Cutting Force ◽  
Ultrasonic Vibration ◽  
Removal Rate ◽  
Cutting Temperature ◽  
Brittle Materials ◽  
Force Model ◽  
Rotary Ultrasonic Machining ◽  
Cutting Force Model ◽  
Input Variables ◽  
Ultrasonic Vibration Assisted Grinding

Ultrasonic-vibration-assisted grinding (UVAG) or rotary ultrasonic machining has been investigated both experimentally and theoretically. Effects of input variables on output variables in UVAG of brittle materials and titanium (Ti) have been studied experimentally. Models to predict the material removal rate in UVAG of brittle materials have been developed. However, there is no report on models of cutting force in UVAG. This paper presents a physics-based predictive model of cutting force in the UVAG of Ti. Using the model developed, influences of input variables on cutting force are predicted. These predicted influences are compared with those determined experimentally. This model can serve as a useful template and foundation for development of cutting force models in UVAG of other materials (such as ceramics and stainless steels) and models to predict torque, cutting temperature, tool wear, and surface roughness in UVAG.

Experimental study of surface generating process in tangential ultrasonic vibration assisted grinding for titanium alloys

2020 ◽  
pp. 095440622096972
Author(s):  
Yan Wang ◽  
Shuai Geng ◽  
Zizheng Cheng ◽  
Yinghuai Dong ◽  
Shuo Yang ◽  
...  
Keyword(s):  
Titanium Alloys ◽  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Removal Rate ◽  
Grinding Force ◽  
Fractional Factorial ◽  
Experimental Results ◽  
Machining Process ◽  
Series Of Experiments ◽  
Ultrasonic Vibration Assisted Grinding

This paper presents a fundamental investigation of the surface generating mechanisms involved in Tangential ultrasonic vibration assisted grinding (TUAG) for Titanium alloys processing. The relationship between ultrasonic vibration, grinding parameters and surface quality is illuminated; the grain paths chasing phenomena is pointed out to describe the surface forming, the surface topography and micro structure are studied and analyzed by a series of experiments. The influence of grain paths overlap and interfere on surface roughness and grinding force are studied respectively. A series of experiments designed by three-variable four-level fractional factorial is used to evaluate the machining performance. The experimental results are employed to clarify the surface features of Titanium alloys fabricated by ultrasonic vibration assisted grinding, in order to explain the interaction effects of the ultrasonic parameters on material removal rate, grinding force and surface quality. Experimental results show that the grinding force of TUAG is less than that of CG. At the spindle speed of 2000rpm, the grinding force in TUAG is 13N less than that in CG, which greatly optimizes the machining process and improves the surface machining quality.

Study on Grinding Force in Two-Dimensional Ultrasonic Grinding Nano-Ceramics

2010 ◽  
Vol 42 ◽  
pp. 204-208 ◽  
Author(s):  
Xiang Dong Li ◽  
Quan Cai Wang
Keyword(s):  
Mathematical Model ◽  
Ultrasonic Vibration ◽  
Contact Time ◽  
Reaction Force ◽  
Grinding Force ◽  
Two Dimensional ◽  
Indentation Fracture ◽  
Ultrasonic Grinding ◽  
The Impact ◽  
Ultrasonic Vibration Assisted Grinding

In this paper, the characteristic of grinding force in two-dimensional ultrasonic vibration assisted grinding nano-ceramic was studied by experiment based on indentation fracture mechanics, and mathematical model of grinding force was established. The study shows that grinding force mainly result from the impact of the grains on the workpiece in ultrasonic grinding, and the pulse power is much larger than normal grinding force. The ultrasonic vibration frequency is so high and the contact time of grains with the workpiece is so short that the pulse force will be balanced by reaction force from workpiece. In grinding workpiece was loaded by the periodical stress field, which accelerates the fatigue fracture.

Study on Effects of Ultrasonic Vibration on Grinding Force

2014 ◽  
Vol 532 ◽  
pp. 568-571
Author(s):  
Hong Li Zhang ◽  
Jin Huan Zhang
Keyword(s):  
Mathematical Models ◽  
Ultrasonic Vibration ◽  
Brittle Material ◽  
Grinding Force ◽  
Grinding Force Ratio ◽  
Force Ratio

The mathematical models of the dynamic grinding force and the average grinding force were established by introducing the unit grinding force Fu. And the formula of the average grinding force in the grinding zone was derived. The experiments were conducted in the traditional grinding (TG) mode and tangential ultrasonic vibration grinding (TUAG) mode. The results show that the unit grinding force in TUAG is lower than that in TG in the same machining condition; the grinding force ratio is decreased due to the tangential ultrasonic vibration of the workpiece. It is helpful to improve the machinablity of the hard-brittle material.

An improved robotic abrasive belt grinding force model considering the effects of cut-in and cut-off

2019 ◽  
Vol 37 ◽  
pp. 496-508 ◽  
Author(s):  
Sijie Yan ◽  
Xiaohu Xu ◽  
Zeyuan Yang ◽  
Dahu Zhu ◽  
Han Ding
Keyword(s):  
Grinding Force ◽  
Force Model ◽  
Belt Grinding ◽  
Abrasive Belt ◽  
Grinding Force Model

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.

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