Suppression of diamond tool wear in machining of tungsten carbide by combining ultrasonic vibration and electrochemical processing

2018 ◽  
Vol 44 (4) ◽  
pp. 4142-4153 ◽  
Author(s):  
Xinquan Zhang ◽  
Rui Huang ◽  
Kui Liu ◽  
A.Senthil Kumar ◽  
Hui Deng
Keyword(s):  
Tool Wear ◽  
Tungsten Carbide ◽  
Ultrasonic Vibration ◽  
Diamond Tool ◽  
Electrochemical Processing

Influence of Tungsten-Carbide and Cobalt on Tool Wear in Cutting of Cemented Carbides with Polycrystalline Diamond Tool

2013 ◽  
Vol 7 (4) ◽  
pp. 433-438 ◽  
Author(s):  
Junsuke Fujiwara ◽  
◽  
Keisuke Wakao ◽  
Takeshi Miyamoto ◽  
Keyword(s):  
Particle Size ◽  
Tool Wear ◽  
Tungsten Carbide ◽  
Diamond Tool ◽  
Polycrystalline Diamond ◽  
Cemented Carbides ◽  
Large Particles

The influence of the tungsten-carbide (WC) particle size and Co contents of cemented carbides on polycrystalline diamond tool wear during turning was investigated experimentally. The main results obtained were as follows. (1) Tool wear increased with increasing Co content. (2) It is important to cut off the binder between the WC particles and the Co. (3) Cemented carbides containing small WC particles are more effective than cemented carbides containing large particles.

Tool Wear of Diamond Tools in Ultrasonic Vibration Turning Titanium Alloys

2012 ◽  
Vol 229-231 ◽  
pp. 517-520 ◽  
Author(s):  
Zhi Min Zhou ◽  
Xiao Yan Li ◽  
Yuan Xin Qu ◽  
Jian Na
Keyword(s):  
Tool Wear ◽  
Titanium Alloys ◽  
Ultrasonic Vibration ◽  
Diamond Tool ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Turning Process ◽  
Diamond Tools ◽  
Tc4 Titanium Alloy ◽  
Superior Mechanical Properties

Titanium alloys, as difficult-to-cut materials, have poor machinability due to their superior mechanical properties, heat resistance and corrosion resistance. High cutting temperature and great cutting force that will greatly accelerate tool wear often occurs in titanium alloys cutting process. In this paper, an ultrasonic vibration turning method was used to lower diamond tool wear during TC4 titanium alloy turning process. Ultrasonic vibration turning tests were carried out with various cutting parameters. Experimental results indicated that there’s a significant reduction of the wear rate of diamond tools by means of ultrasonic vibration in TC4 turning process. For ultrasonic vibration turning, spindle speed, the amplitude and frequency of vibration of the tool are the greatest impact of tool wear, followed by feed rate, then the cutting depth.

Planing of Cobalt-Free Tungsten Carbide Using a Diamond Tool -Cutting Temperature and Tool Wear-

2008 ◽  
Vol 389-390 ◽  
pp. 132-137 ◽  
Author(s):  
Akinori Yui ◽  
Hiroshi Matsuoka ◽  
Takayuki Kitajima ◽  
Shigeki Okuyama
Keyword(s):  
Tool Wear ◽  
Tungsten Carbide ◽  
Diamond Tool ◽  
Contact Point ◽  
Cutting Speed ◽  
Nitrogen Gas ◽  
Argon Gas ◽  
Point Temperature ◽  
Tools Wear ◽  
Cutting Point

Diamond tools wear easily under cutting tungsten carbide. To clarify the wear mechanism, the authors composed a temperature-measurement system of a cutting point using a dual-colorinfrared pyrometer and performed planing experiments. Infrared rays, emitted from the contact point between a mono-crystal-diamond tool and a cobalt-free tungsten carbide, are transmitted though the diamond tool and an optical fiber and then they are detected by the pyrometer. Before the planing experiments, rubbing experiments were performed using a mono-crystal-diamond stick and a tungsten-carbide disk. The effects of gas environments and rubbing conditions on contact-point temperature, friction coefficient, and diamond wear were experimentally investigated. Planing experiments of the tungsten carbide using mono-crystal-diamond tool, were performed. The effects of planing conditions and gas environments on cutting-point temperature and tool wear were investigated. Through the experiments the following results were obtained. Rubbing and cutting point temperature is the highest in Argon gas followed by Nitrogen gas and is the lowest in Air. Diamond-tool wear is the greatest in Argon gas, less in Nitrogen gas, and the least in Air. The reason for this is that a chemically or physically absorbed layer of oxygen or nitrogen on tungsten carbide acts as a lubricant at the contact point. Cutting-point temperature was in proportion to cutting speed. The temperature under cutting speed at 90m/min and cutting depth at 1.0μm in Air was approximately 170degrees Celsius.

Suppression mechanism of diamond tool wear in ultrasonic vibration cutting

2019 ◽  
Author(s):  
Satoru Fukumori ◽  
Fumihiro Itoigawa ◽  
Satoru Maegawa ◽  
Takashi Nakamura ◽  
Eiji Shamoto
Keyword(s):  
Tool Wear ◽  
Ultrasonic Vibration ◽  
Diamond Tool ◽  
Vibration Cutting ◽  
Suppression Mechanism ◽  
Ultrasonic Vibration Cutting

A Study on Tool Wear Prediction in Ultrasonic Vibration Turning of Tungsten Carbide

2016 ◽  
Vol 693 ◽  
pp. 1228-1234 ◽  
Author(s):  
Feng Jiao ◽  
Ying Niu ◽  
Jia Liang Qi ◽  
Jie Li
Keyword(s):  
Time Series ◽  
Tool Wear ◽  
Tungsten Carbide ◽  
Ultrasonic Vibration ◽  
Flank Wear ◽  
Machining Process ◽  
Two Dimensional ◽  
Wear Prediction ◽  
Tool Wear Prediction ◽  
Ultrasonic Cutting

The prediction of tool wear can help understand the influence of tool wear on the machining process and result, and change or grind the worn tool in time. The two-dimensional ultrasonic vibration turning method can reduce the crack of tool and decrease the negative effect on processing thus extends the tool life. In this paper, two-dimensional ultrasonic cutting theory was applied to the precision machining of tungsten carbide. With self-developed two-dimensional ultrasonic cutting device, series of cutting experiments were carried out. During cutting process, the flank wear under different cutting length was observed; flank wear situations were compared with those in traditional cutting. In order to predict the tool wear and thus heighten the machining precision, a tool wear prediction model based on time series analysis method was built in the paper. The research results show the built AR (9) time series model can predict the flank wear condition with high precision.

Diamond Turning of Special Stainless Steel by Applying Ultrasonic Vibration with Gas Shield

2006 ◽  
Vol 532-533 ◽  
pp. 57-60 ◽  
Author(s):  
Yuan Liang Zhang ◽  
Zhi Min Zhou ◽  
Zhi Hui Xia
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Tool Wear ◽  
Ultrasonic Vibration ◽  
Diamond Tool ◽  
Flank Wear ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Diamond Turning

Ultrasonic vibration is applied to diamond turning of special stainless steel to decrease diamond tool wear and improve the surface quality of the workpieces. It reviews the principle of diamond turning of special stainless steel by applying ultrasonic vibration combined with gas shield. Compared with the ordinary machining method, cutting temperature and cutting force are greatly reduced when machining by application of ultrasonic vibration, and the appetency between a diamond tool and Ferrous atom of a workpiece is also minimized as gas shield application. The Experiments of cutting special stainless steel workpieces show that the surface roughness Ra is less than 0.15μm and flank wear-width is less than 5μm when cutting distance is up to 2000m. It takes research on the effect of cutting parameters to surface roughness and tool wear. The experiment result shows that the amplitude is the most important factor which effects tool wear and surface roughness most.

Prediction of Machining Dimension in Laser Heating and Ultrasonic Vibration Composite Assisted Cutting of Tungsten Carbide

2018 ◽  
Vol 17 (01) ◽  
pp. 35-45 ◽  
Author(s):  
Feng Jiao ◽  
Ying Niu ◽  
Ming-Jun Zhang
Keyword(s):  
Time Series ◽  
Tool Wear ◽  
Tungsten Carbide ◽  
Ultrasonic Vibration ◽  
Laser Heating ◽  
Time Series Model ◽  
Two Dimensional ◽  
Dimension Precision ◽  
Artificial Neural Network Ann ◽  
Ultrasonic Vibration Cutting

Dimension precision plays an important role in precision machining. The two-dimensional ultrasonic vibration cutting (TDUVC) method reduces cutting force and alleviates tool wear, meanwhile, laser assisted cutting (LAC) improves the material workability under high temperature. In this paper, laser heating and two-dimensional ultrasonic vibration were combined in cutting of tungsten carbide (YG10) to improve machining dimension precision. According to the experimental results, a prediction model of machining dimension was built based on time series model. The results show that the machining dimension precision is improved significantly in laser and ultrasonic composite assisted cutting (LUAC), and AR (2) and AR (12) of time series model predicts machining dimension with high precision (the relative error is less than 10%), and reflects tool wear state. Moreover, comparison with artificial neural network (ANN) also proves that the time series model is more suitable for the prediction of machining dimensional in LUAC.

Key Technologies of Diamond Tool Cutting of Ferrous Metals with Ultrasonic Vibration

2016 ◽  
Vol 679 ◽  
pp. 117-121
Author(s):  
Hai Long Wang ◽  
Xue Du ◽  
Su Juan Wang
Keyword(s):  
Wear Rate ◽  
Tool Wear ◽  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Diamond Tool ◽  
Material Surface ◽  
Tool Wear Rate ◽  
Workpiece Material ◽  
Workpiece Surface ◽  
Surface Pretreatment

The paper presents a review on the current situation of diamond tool ultrasonic vibration cutting ferrous metal. The key technology of diamond tool ultrasonic vibration cutting ferrous metals is presented in this paper and the influence of the processing environment of the presence of carbon atoms protective gas, the presence of carbon particles coolant of temperature control technology, ultrasonic vibration, workpiece material surface pretreatment or without on diamond tool wear rate and workpiece surface quality, the relationship between diamond tool wear rate, the workpiece surface quality and the ultrasonic vibration technology, processing environment, workpiece material surface pretreatment technology factors is given. Propose research direction and research emphasis on reducing diamond tool wear rate and improve workpiece surface quality.

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