scholarly journals An Experimental Study of Machining of Glass by Non-Conventional Machining Process

2018 ◽  
Keyword(s):  
Experimental Study ◽  
Machining Process ◽  
Conventional Machining

Experimental Study on Numerical Controlled Electrochemical Turning

2010 ◽  
Vol 426-427 ◽  
pp. 658-663 ◽  
Author(s):  
Min Kang ◽  
X.Q. Fu ◽  
Yong Yang
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Flow Field ◽  
Rotational Speed ◽  
Cylindrical Surface ◽  
Special Kind ◽  
Machining Process ◽  
Experimental Setup ◽  
Electrolyte Flow ◽  
Electrochemical Turning

In order to machine revolving workpieces which are made of difficult-to-cut materials or have low rigidity, the technology of Numerical Controlled Electrochemical Turning (NC-ECT) was put forward and the preliminary experimental study was presented in this paper. To carry out the study, an experimental setup was developed, and a new special kind of inner-spraying cathode with single linear edge was designed according to the process of machining cylindrical surface and the requirement of stable electrolyte flow field. First, the NC-ECT method was simply described. Then, considering the structure of the cathode and the machining process, the method for calculating the material removed depth per revolution in machining the cylindrical surface was given. Finally, the experiments of machining the cylindrical surface were carried out. Experiments showed: 1) The calculated material removed depth per revolution is well consistent with the actual value of the machining process, which decreases with the increase of the rotational speed of the workpiece and increases almost linearly with the increase of the working voltage; 2) The surface roughness decreases with the increase of the rotational speed of the workpiece and the working voltage; 3) The working current in the machining process trend to stable after several revolutions.

An Experimental Study of the Abrasive Water Jet Micro-Machining Process for Quartz Crystals

2012 ◽  
Vol 565 ◽  
pp. 339-344 ◽  
Author(s):  
H. Qi ◽  
J.M. Fan ◽  
Jun Wang
Keyword(s):  
Experimental Study ◽  
Removal Rate ◽  
Water Jet ◽  
Machining Process ◽  
Bottom Surface ◽  
Micro Machining ◽  
Abrasive Water Jet ◽  
Process Variables ◽  
Jet Impact ◽  
Micro Channels

An experimental study of the machining process for micro-channels on a brittle quartz crystal material by an abrasive slurry jet (ASJ) is presented. A statistical experiment design considering the major process variables is conducted, and the machined surface morphology and channelling performance are analysed to understand the micro-machining process. It is found that a good channel top edge appearance and bottom surface quality without wavy patterns can be achieved by employing relatively small particles at shallow jet impact angles. The major channel performance measures, i.e. material removal rate (MRR) and channel depth, are then discussed with respect to the process parameters. It shows that with a proper control of the process variables, the abrasive water jet (AWJ) technology can be used for the micro-machining of brittle materials with high quality and productivity.

Experimental Study of Machining of Smart Materials Using Submerged Abrasive Waterjet Micromachining Process

2018 ◽  
Author(s):  
Sagil James ◽  
Anurag Mahajan
Keyword(s):  
Experimental Study ◽  
Smart Materials ◽  
Thermal Stresses ◽  
Piezoelectric Materials ◽  
High Hardness ◽  
Machining Process ◽  
Critical Parameters ◽  
Abrasive Waterjet ◽  
Parameter Study ◽  
Wide Range

Smart materials are new generation materials which possess great properties to mend themselves with a change in environment. Smart materials find applications in a wide range of industries including biomedical, aerospace, defense and energy sector and so on. These materials possess unique properties including high hardness, high strength, high melting point and low creep behavior. Manufacturing of these materials is a huge challenge, particularly at the micron scale. Abrasive waterjet micromachining (AWJMM) is a non-traditional material removal process which has the capability of machining extremely hard and brittle materials such as glasses and ceramics. AWJMM process is usually performed with nozzle and workpiece placed in air. However, machining in the air causes spreading of the waterjet resulting in low machining quality. Performing the AWJMM process with a submerged nozzle and workpiece could eliminate this problem and also reduce noise, splash, and airborne debris particles during the machining process. This research investigates Submerged Abrasive Waterjet Machining (SAWJMM) process for micromachining smart ceramic materials. The research involves experimental study on micromachining of smart materials using an in-house fabricated SAWJMM setup. The effect of critical parameters including stand-off distance, abrasive grain size and material properties on the cavity size, kerf angle and MRR during SAWJMM and AWJMM processes are studied. The study found that SAWJMM process is capable of successfully machining smart materials including shape memory alloys and piezoelectric materials at the micron scale. The machined surfaced are free of thermal stresses and did not show any cracking around the edges. The critical process parameter study revealed that stand-off distance and abrasive grit size significantly affect the machining results.

Hybrid Non Conventional Machining of Glass - A Review

2019 ◽  
Vol 895 ◽  
pp. 8-14 ◽  
Author(s):  
Y. Nagaraj ◽  
N. Jagannatha ◽  
N. Sathisha
Keyword(s):  
Surface Finish ◽  
Machining Process ◽  
Machining Processes ◽  
Advantages And Disadvantages ◽  
Good Surface ◽  
Hard And Brittle Material ◽  
Good Surface Finish ◽  
Output Characteristics ◽  
Conventional Machining ◽  
Selection Of

Glass, being considered as hard and brittle material is very difficult to machine into desired shapes. The readily available conventional machining process does not provide good surface finish thus requires additional machining process. This paper reviews the different existing non conventional machining process accessible till today for the machining of glass materials. This paper also discusses the advantages and disadvantages of the existing non conventional machining processes. The various hybrid non conventional machining processes are also studied with focus on machining output characteristics like MRR, surface finish, tool wear rate. This paper summarizes the selection of hybrid non conventional machining processes for the various type of glass.

A Scenario on Dry-WEDM and WEDM for Industrial Applications

2019 ◽  
Vol 1156 ◽  
pp. 34-42
Author(s):  
P.S. Gowthaman ◽  
S. Jeyakumar ◽  
B.A. Saravanan
Keyword(s):  
Metal Cutting ◽  
Industrial Applications ◽  
Machining Process ◽  
New Materials ◽  
Environment Friendly ◽  
Complex Shapes ◽  
Dry Wedm ◽  
Advanced Machining ◽  
Conventional Machining ◽  
Modern Tool

In present day manufacturing industries playing the major role in the machining of new materials with complex shapes, intricate structure and difficult profiles. The improvement of industries and machines is accountable for product quality and accuracy, which are not satisfied in conventional machining techniques. The WEDM is advanced machining process, they are capable to machining the components which are difficult to machine, whereas Dry-WEDM is another method, it utilizes the gas instead of dielectric liquid, it exhibits lower corrosion, fine finish, decrease dielectrics and environment friendly. Development of WEDM is suitable machining option for meeting the demands of modern tool room application and metal cutting industries. The purpose of the article attempts is to highlights the application, improvement and future scope of Dry-WEDM and WEDM in industrial areas.

Assessment of Plasma Enhanced Machining for Improved Machinability of Inconel 718

1997 ◽  
Vol 119 (1) ◽  
pp. 125-129 ◽  
Author(s):  
J. W. Novak ◽  
Y. C. Shin ◽  
F. P. Incropera
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Tool Life ◽  
Cutting Forces ◽  
Inconel 718 ◽  
Experimental Results ◽  
Hybrid Machining ◽  
Machining System ◽  
Conventional Machining

An experimental study has been performed to assess the feasibility of using a hybrid machining system to improve the machinability of Inconel 718. An assembled plasma enhanced machining (PEM) system is described, and experimental results obtained from both conventional and plasma enhanced machining of Inconel 718 are compared. Several advantages of PEM over conventional machining are demonstrated, including improvement of surface roughness, lower cutting forces and extended tool life.

Sign in / Sign up

Export Citation Format

Share Document