Analysis of Experiments of Cutting Force and Improvement of Surface Properties for Al2O3 Ceramics Inserts by Ion Implantation

2011 ◽  
Vol 58-60 ◽  
pp. 435-440
Author(s):  
Ming Hong Wang ◽  
Fa Jiang He
Keyword(s):  
Ion Implantation ◽  
Cutting Force ◽  
Surface Properties ◽  
Convenient Method ◽  
Experimental Analysis ◽  
Set Up ◽  
Natural Life

The problem which people are following with interest all the time is how to improve the cutting properties and natural life of cutter. The feasible experimental analysis is done for Al2O3 ceramics inserts. The technique of N+ ion implantation is adopted in the experimentation, the practical formulae of cutting force are set up, and the cutting properties of inserts are compared and analyzed. An effective, simple and convenient method for changing the surface properties of inserts is obtained. All the tries are achieved with the aim of property melioration for ceramics inserts.

On the Influence of the Slot Orifice in Diesel Common Rail Nozzle

2018 ◽  
Vol 11 (1) ◽  
pp. 55-69 ◽  
Author(s):  
Giancarlo Chiatti ◽  
Ornella Chiavola ◽  
Fulvio Palmieri ◽  
Roberto Pompei
Keyword(s):  
Cross Section ◽  
Flow Rate ◽  
Experimental Analysis ◽  
Common Rail ◽  
Spray Angle ◽  
The Novel ◽  
Hydraulic Behavior ◽  
Reference Information ◽  
Light Duty ◽  
Set Up

Background:The paper deals with a diesel common rail nozzle in which a novel orifice layout is implemented.Objective:Its influence on the nozzle mechanical-hydraulic behavior and on the spray shape transient development is experimentally investigated.Methods:In the research, a solenoid injector for light duty diesel engines is equipped with the novel nozzle prototype and tested. The prototype layout is described, pointing out the features of the nozzle orifices, in which a Slot cross-section is adopted; the investigation is accomplished extending the hydraulic tests and the spray visualizations to a reference nozzle with standard holes. The influence of the hole layout on the mechanical-hydraulic behavior of the nozzle is assessed by experimental analysis based on the rate of injection measurement, in comparison with the reference nozzle. Once the hydraulic behavior of the novel nozzle has been characterized in terms of mass flow rate, the slot influence on the spray shape is assessed analyzing the macroscopic features such as the penetration distance and the spray angle, in non evaporative conditions. The study is carried out under transient injection conditions, for different injection pressures, up to 1400 bar.Results:The results on spray characteristics also provide reference information to set up spray models suited to take the Slot orifice into account.

Dynamic characteristics of squeeze-type mount using magnetorheological fluid

2005 ◽  
Vol 219 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Y K Ahn ◽  
J-Y Ha ◽  
Y-H Kim ◽  
B-S Yang ◽  
M Ahmadian ◽  
...  
Keyword(s):  
Dynamic Characteristics ◽  
Experimental Analysis ◽  
Vibration Isolation ◽  
Dynamic Behaviour ◽  
Electrical Current ◽  
Magnetorheological Fluid ◽  
Test Set ◽  
Mr Fluid ◽  
Set Up ◽  
Stiffness And Damping

This paper presents an analytical and experimental analysis of the characteristics of a squeeze-type magnetorheological (MR) mount which can be used for various vibration isolation areas. The concept of the squeeze-type mount and details of the design of a squeeze-type MR mount are discussed. These are followed by a detailed description of the test set-up for evaluating the dynamic behaviour of the mount. A series of tests was conducted on the prototype mount built for this study, in order to characterize the changes occurring as a result of changing electrical current to the mount. The results of this study show that increasing electrical current to the mount, which increases the yield stress of the MR fluid, will result in an increase in both stiffness and damping of the mount. The results also show that the mount hysteresis increases with increase in current to the MR fluid, causing changes in stiffness and damping at different input frequencies.

The Simulation and Experimental Analysis of Non-Abrasive Cryogenic Polishing on Metal Cylindrical Surfaces

2012 ◽  
Vol 217-219 ◽  
pp. 1946-1949
Author(s):  
Shou Ping Qu ◽  
Tian Zhu Liang
Keyword(s):  
Physical Model ◽  
Dynamic Simulation ◽  
Experimental Analysis ◽  
Tool Material ◽  
Machining Process ◽  
Metal Material ◽  
Set Up

In the paper, the new machining process which was named non-abrasive cryogenic polishing will be introduced. The model of non-abrasive cryogenic polishing was set up. The dynamic simulation was analyzed by using Recurdyn. And the physical model was accomplished. By analyzing mass experiments, the ice tool material, metal material, rotate speed, polishing time and other parameters were found.

Hall-effect studies of modification of HgCdTe surface properties with ion implantation and thermal annealing

2020 ◽  
Vol 393 ◽  
pp. 125721 ◽  
Author(s):  
A.G. Korotaev ◽  
I.I. Izhnin ◽  
K.D. Mynbaev ◽  
A.V. Voitsekhovskii ◽  
S.N. Nesmelov ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Hall Effect ◽  
Surface Properties ◽  
Thermal Annealing

Stoichiometric Disturbance in InP Measured During Ion Implantation Process

1983 ◽  
Vol 27 ◽  
Author(s):  
D. Haberland ◽  
P. Harde ◽  
H. Nelkowski ◽  
W. Schlaak
Keyword(s):  
Quantitative Analysis ◽  
Ion Implantation ◽  
Target Chamber ◽  
Depth Profiles ◽  
Preferential Sputtering ◽  
Implantation Process ◽  
Sputtering Yield ◽  
Set Up

ABSTRACTTo measure the sputtered ions during implantation a specially designed UHV-target chamber with a SIMS apparatus was set up. Quantitative analysis are possible with an Auger spectrometer. Disturbances in the stoichiometry in InP are measured during implantation of Sn. The enrichment of the doped surface of InP with the lighter component phoshorus will be discussed in consideration of preferential sputtering and recoil effects during implantation. Measured depth profiles of Sn in InP will be compared with calculated distributions on condition that sputtering takes place. The sputtering yield of InP bombarded by 120 keV Sn+ is 17±5.

Surface properties of magnesium improved by Sr ion implantation

2018 ◽  
Vol 5 (6) ◽  
pp. 066546 ◽  
Author(s):  
Yongqiang Jia ◽  
Zhixin Ba ◽  
Qiangsheng Dong ◽  
Zhuangzhuang Li ◽  
Juan Kuang
Keyword(s):  
Ion Implantation ◽  
Surface Properties

An Intelligent Tool Post in a Lathe

2006 ◽  
Vol 505-507 ◽  
pp. 1009-1014
Author(s):  
C.L. Wu ◽  
K.S. Wang
Keyword(s):  
Taguchi Method ◽  
Cutting Force ◽  
Experimental Results ◽  
Cutting Conditions ◽  
Design Equation ◽  
Design Requirements ◽  
Set Up ◽  
Force Characteristics ◽  
Operating Equation

An Intelligent Tool Post (ITP) used in lathe is proposed in this study. ITP is designed from the basis of two different cutting force characteristics produced from abnormal cutting generated by tool crashing workpiece and from normal cutting. ITP is capable of sensing and distinguishing the normal cutting signals from the abnormal ones. During normal cutting, ITP is able to resist the cutting torque and continue the cutting. As abnormal cutting occurs, the tool would move away from the workpiece without any damage. The equations for design and operation have been established. With the threshold and the design equation, one can design appropriate ITP. The threshold can be calculated and set up by the operating equation and the cutting conditions. Furthermore, Taguchi method was employed to conduct the experiments and analyze the experimental results. The results showed that the ITP’s functions met the design requirements completely.

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