scholarly journals Effect of Cutting Parameters on Chips and Burrs Formation With Traditional Micromilling and Ultrasonic Vibration Assisted Micromilling

2021 ◽  
Author(s):  
Zhonghang Yuan ◽  
Bin Fang ◽  
Yuanbin Zhang ◽  
Fei Wang
Keyword(s):  
Size Effect ◽  
Ultrasonic Vibration ◽  
Formation Mechanism ◽  
Cutting Parameters ◽  
Burr Formation ◽  
Vibration Cutting ◽  
Chip Breaking ◽  
Trajectory Simulation ◽  
Cutting Experiment ◽  
Intermittent Cutting

Abstract In the traditional micromilling(TMM) of Inconel718 alloy, due to the influence of material plasticity and size effect, relatively large burr will be produced. In order to solve the burr problem in micromilling, ultrasonic vibration in feed direction is applied to the workpiece to complete vibration cutting. Combined with trajectory simulation and cutting experiment, the burr formation mechanism of TMM and ultrasonic vibration assisted micromilling(UVAMM) was studied. The results show that when the ratio of amplitude(A) to feed per tooth(ƒz) is greater than 0.5, continuous cutting changes to intermittent cutting. Compared with TMM, UVAMM improves chip breaking ability, facilitates the propagation of burr crack and effectively inhibits the formation of burr. However, due to the influence of cutting edge radius, A/ƒz should be set larger. When the chip breaking condition is reached, the burr shape is usually tearing or flocculent. Under the conditions of low speed(n), large ƒz and large A, the burr suppression is more obvious.

Building of Ultrasonic Vibration Precision Cutting System and Experimental Study of Cutting for Plastic Material

2010 ◽  
Vol 139-141 ◽  
pp. 848-851
Author(s):  
Liang Yang ◽  
Ke Gao
Keyword(s):  
Ultrasonic Vibration ◽  
Plastic Material ◽  
Ultrasonic Transducer ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Sine Wave ◽  
Vibration Cutting ◽  
Ultra Precision ◽  
Cutting Experiment ◽  
Deformation Coefficient

Precision ultrasonic vibration cutting (UVC) is a promising technology in field of precision and ultra-precision machining. It is a kind of the pulsing cutting process with a constant vibration frequency and sine-wave amplitude of vibration. Its practicability has been a research focus since it came into being. In this article, an precision UVC system is built by designing this system, including the selection of precision machine and ultrasonic generator, the design of ultrasonic transducer, and then many cutting experiment are been done. Different of chips under the conditions of ultrasonic and no ultrasonic are made, and deformation coefficient of chip obtained by vibration cutting is smaller. The effect of cutting parameters on roughness is discussed in precision vibration cutting, the surface roughness decreased with the increase of the amplitude and the decrease of the cutting depth or feed rate, at the same time, there is an optimum cutting speed to receive the best surface.

Modeling Analysis of Micro-Burr Formation

2011 ◽  
Vol 381 ◽  
pp. 86-89 ◽  
Author(s):  
Yong Hua Xiong ◽  
Gui Cheng Wang ◽  
Jian Chen ◽  
Hai Lin Li
Keyword(s):  
Numerical Simulations ◽  
Formation Mechanism ◽  
Cutting Parameters ◽  
Machining Process ◽  
Burr Formation ◽  
Tool Geometry ◽  
Micro Machining ◽  
Two Dimensional ◽  
Modeling Analysis ◽  
General Rules

One of the main problems in the process of micro-machining for small and precision parts is that micro-burr will be generated. This paper carried out the two-dimensional numerical simulations with ABAQUS, which simulated the effects on burr formation coming from the micro-burr formation mechanism, tool geometry and cutting parameters in micro-machining process. The general rules of various factors impacting on burr formation were obtained in micro-machining process.

Study on the Machining of Plasma-Sprayed Al2O3 Coatings by Ultrasonic Vibration Cutting

2008 ◽  
Vol 373-374 ◽  
pp. 746-749
Author(s):  
Gui Min Liu ◽  
Ya Ling Song ◽  
Li Li Ma ◽  
Feng Wang
Keyword(s):  
Surface Roughness ◽  
Regression Analysis ◽  
Ultrasonic Vibration ◽  
Cutting Parameters ◽  
Hard Alloys ◽  
Vibration Cutting ◽  
Plasma Sprayed ◽  
Cutting Experiments ◽  
Ultrasonic Vibration Cutting ◽  
Orthogonal Tests

Ultrasonic vibration cutting experiments have been carried out for the machining of the plasma-sprayed Al2O3 coatings. The optimized value of V/Vc for the vibration cutting was obtained by a series of tests. The comparing experiments of the ultrasonic vibration cutting and the traditional cutting for the machining of the plasma-sprayed Al2O3 coatings by the cube nitride boride (CBN) and YC09 (hard alloy) lathe tools have been executed. The results indicate that the valid cutting time for the vibration cutting is 3-4 times longer than that for the traditional cutting, at the same time, the surface roughness values of the coatings machined by the vibration cutting are less than that machined by the traditional cutting. CBN and YC09 have been optimized as the candidates to machine the Al2O3 coatings through a series of vibration cutting tests carried out on the lathe tools of CBN and three hard alloys of YC09, YH3 and YGHT. The cutting parameters, such as V, aP and f, for the vibration cutting of the Al2O3 coatings by CBN and YC09 were obtained through the orthogonal tests and regression analysis. The obtained parameters have been utilized to machine the plasma-sprayed Al2O3 coatings for validation, and the results indicate that the ultrasonic vibration cutting is a competitive method to machine the plasma-sprayed Al2O3 coatings.

scholarly journals Study on the tool wear of 3-D elliptical vibration cutting

2017 ◽  
Vol 8 (2) ◽  
pp. 215-220 ◽  
Author(s):  
Jieqiong Lin ◽  
Xian Jing ◽  
Mingming Lu ◽  
Yan Gu ◽  
Jinguo Han
Keyword(s):  
Tool Wear ◽  
Prediction Model ◽  
Three Dimensional ◽  
Cutting Parameters ◽  
Key Factors ◽  
Elliptical Vibration Cutting ◽  
Vibration Cutting ◽  
Elliptical Vibration ◽  
Proposed Model ◽  
Intermittent Cutting

Abstract. As always, the rapid wear of tools was one of the key factors limiting the precise turning of difficult-to-machine materials with diamond tool. 3-D elliptical vibration cutting has inherited many advantages of elliptical vibration cutting, such as the intermittent cutting property and friction reverse property. However, studies on the tool wear of three-dimensional elliptical vibration cutting has not been reported yet. The formation principle of 3-D cutting elliptical trajectory was analysed and a prediction model of tool wear was established in the present work. Besides, a self-developed three-dimensional elliptical vibration device was employed to conduct turning experiment. Compared with the proposed model, the experimental results showed a great agreement with the proposed prediction model. This work may provide a reference for the further optimization of the 3-D elliptical vibration cutting parameters.

Theoretical Analysis and Simulation of the Effect of Vibration Amplitude on Cutting Force in Precision Ultrasonic Vibration Cutting

2007 ◽  
Vol 329 ◽  
pp. 693-698
Author(s):  
Ze Sheng Lu ◽  
L. Yang
Keyword(s):  
Cutting Force ◽  
Ultrasonic Vibration ◽  
Cutting Parameters ◽  
Sine Wave ◽  
Cutting Mechanism ◽  
Vibration Cutting ◽  
Ultra Precision ◽  
First Time ◽  
The Relationship ◽  
Ultrasonic Vibration Cutting

Precision ultrasonic vibration cutting is a promising technology in field of precision and ultra-precision machining. It is a kind of the pulsing cutting process with a constant vibration frequency and sine-wave amplitude of vibration. In this article, a rational model of cutting force in vibration cutting is established, and the vibration cutting mechanism is analyzed. Specially, by the method of numerical simulation, the effect regulation of amplitude of vibration on cutting force is theoretically discussed for the first time in precision vibration cutting. And the relationship between cutting parameters and cutting force is probed into on the different cutting conditions.

An Experimental Study of Cutting Force on Large Cutting Depth Turning Titanium Alloy with CBN Tool

2014 ◽  
Vol 800-801 ◽  
pp. 237-240
Author(s):  
Li Fu Xu ◽  
Ze Liang Wang ◽  
Shu Tao Huang ◽  
Bao Lin Dai
Keyword(s):  
Experimental Study ◽  
Titanium Alloy ◽  
Cutting Force ◽  
Feed Rate ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Depth ◽  
Cbn Tool ◽  
Cutting Experiment ◽  
Rough Turning

In this paper, the cutting experiment was used to study the influence of various cutting parameters on cutting force when rough turning titanium alloy (TC4) with the whole CBN tool. The results indicate that among the cutting speed, feed rate and cutting depth, the influence of the cutting depth is the most significant on cutting force; the next is the feed rate and the cutting speed is at least.

Ultraprecision Ductile-Regime Cutting of Brittle Materials

2007 ◽  
Vol 339 ◽  
pp. 395-399 ◽  
Author(s):  
Ming Zhou ◽  
X.D. Liu ◽  
S.N. Huang
Keyword(s):  
Ultrasonic Vibration ◽  
Soda Lime ◽  
Depth Of Cut ◽  
Soda Lime Glass ◽  
Diamond Cutting ◽  
Vibration Cutting ◽  
Ductile Regime Machining ◽  
Critical Depth Of Cut ◽  
Micro Deformation ◽  
Micro Indentation

Soda-lime glass is a typical brittle material, which is difficult to realize ductile-regime machining by using conventional cutting technology due to the extremely small critical depth of cut. In this work, the micro-deformation characteristics of this kind of materials were analyzed by micro indentation. Ultrasonic vibration assisted diamond cutting was performed in order to investigate the effect of tool vibration on material removal process and surface quality. The profiles of cut surfaces were measured and compared with those obtained by conventional diamond cutting. Real depths of cut in ultrasonic vibration cutting correspond well with the nominal ones. The change in the tribology of the cutting process as well as the alteration of the deformation mechanism of the work material might be responsible for the reduction in tool wear in vibration cutting.

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