Finite element analysis of media used in the centrifugal force assisted abrasive flow machining process

2006 ◽  
Vol 220 (11) ◽  
pp. 1775-1785 ◽  
Author(s):  
R S Walia ◽  
H S Shan ◽  
P K Kumar
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Centrifugal Force ◽  
Machining Process ◽  
Element Analysis ◽  
Abrasive Flow Machining

scholarly journals Research on a 3-DOF Motion Device Based on the Flexible Mechanism Driven by the Piezoelectric Actuators

Micromachines ◽  
2018 ◽  
Vol 9 (11) ◽  
pp. 578 ◽  
Author(s):  
Bingrui Lv ◽  
Guilian Wang ◽  
Bin Li ◽  
Haibo Zhou ◽  
Yahui Hu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Machining Process ◽  
Element Analysis ◽  
3D Motion ◽  
Compliance Modeling ◽  
The Matrix ◽  
Static Performance ◽  
Flexible Mechanism

This paper describes the innovative design of a three-dimensional (3D) motion device based on a flexible mechanism, which is used primarily to produce accurate and fast micro-displacement. For example, the rapid contact and separation of the tool and the workpiece are realized by the operation of the 3D motion device in the machining process. This paper mainly concerns the device performance. A theoretical model for the static performance of the device was established using the matrix-based compliance modeling (MCM) method, and the static characteristics of the device were numerically simulated by finite element analysis (FEA). The Lagrangian principle and the finite element analysis method for device dynamics are used for prediction to obtain the natural frequency of the device. Under no-load conditions, the dynamic response performance and linear motion performance of the three directions were tested and analyzed with different input signals, and three sets of vibration trajectories were obtained. Finally, the scratching experiment was carried out. The detection of the workpiece reveals a pronounced periodic texture on the surface, which verifies that the vibration device can generate an ideal 3D vibration trajectory.

Study on the Reduction Strategy of Machining-Induced Edge Chipping Based on Finite Element Analysis of In-Process Workpiece Structure

2013 ◽  
Vol 135 (1) ◽  
Author(s):  
Hu Gong ◽  
F. Z. Fang ◽  
X. F. Zhang ◽  
Juan Du ◽  
X. T. Hu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Principal Stress ◽  
Maximum Principal Stress ◽  
Machining Process ◽  
Element Analysis ◽  
Edge Chipping ◽  
Additional Support ◽  
The Relationship ◽  
Complex Parts

Edge chipping is one of the most serious issues during machining process of brittle materials. To find an effective method to reduce edge chipping, the relationship between the distribution of maximum principal stress and edge chipping is studied comprehensively based on 3D finite element analysis (FEA) model of in-process workpiece structure in this paper. Three-level influencing factors of edge chipping are proposed, which are helpful to understand the relationship between intuitive machining parameters and edge chipping at different levels. Based on the analysis, several experiments are designed and conducted for drilling and slotting to study the strategy of controlling edge chipping. Two methods are adopted: (a) adding additional support, (b) improving tool path. The result show that edge chipping can be reduced effectively by optimizing the distribution of the maximum principal stress during the machining process. Further, adding addtitional support method is extended to more complex parts and also obtain a good result. Finally, how to use adding additional support method, especially for complex parts, will be discussed in detail. Several open questions are raised for future research.

Wooden Door Slot Cutting System of CNC Machine Finite Element Analysis

2013 ◽  
Vol 579-580 ◽  
pp. 603-606
Author(s):  
Xin Bo Jiang ◽  
Quan Hui Wu ◽  
Feng Ming Jing ◽  
Chun Mei Yang ◽  
Ge Luo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Machining Process ◽  
Rotary Table ◽  
Cnc Machine ◽  
Element Analysis ◽  
Wood Processing ◽  
Minimum Number ◽  
Slot Cutting ◽  
Cutting System

Door hardware doors finished slot machining process is a very important step in the process, as doors hardware slots are in scattered locations, different specifications, difficult processing. This paper, the rotary table overcome dispersion slot door hardware, according to the characteristics of wooden slots hardware, selected the minimum number of spindles to satisfy all wood processing hardware slot, making maximize spindle utilization. The use of finite element design rotary table and key components of the cutting system, verify the reasonableness of its structure.

Soft Magnetic Composite Switched Reluctance Generator - Fabrication and Analysis

2011 ◽  
Vol 383-390 ◽  
pp. 5516-5521 ◽  
Author(s):  
R. Karthikeyan ◽  
K. Vijayakumar ◽  
R. Arumugam
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Characteristics ◽  
Machining Process ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Element Analysis ◽  
Switched Reluctance ◽  
Soft Magnetic Composite ◽  
Transient Electromagnetic

The main objective of this paper is to investigate the suitability of Soft Magnetic Composite (SMC) material SOMOLOY1000 for a Switched Reluctance Generator (SRG) through electromagnetic, thermal and vibration characteristics employing extensive Finite Element Analysis. The fabrication aspects of Soft Magnetic Composite Switched Reluctance Generator (SMC-SRG) using preform material blanks utilizing indigenous machining process have been delineated. The static and transient electromagnetic characteristics have been obtained through the electromagnetic finite element analysis software MagNet6.22.1 while the thermal and vibration aspects have been studied through coupled field Finite Element Analysis employing the multi physics software ANSYS10 while the Impulse hammers excitation - free vibration test using RT Pro Photon data acquisition system facilitated the experimental determination of vibration characteristics. The study concludes that the advantages of less weight , low torque ripple, low eddy current losses, reduction in vibration level of stator structure coupled with the ability to maintain precise mechanical dimensional tolerance may present SMC-SRG a viable candidate in standalone wind energy conversion systems meant for rural and remote area electrification scheme.

Finite Element Analysis of Machining Thin-Wall Parts

2010 ◽  
Vol 458 ◽  
pp. 283-288 ◽  
Author(s):  
R. Izamshah R.A. ◽  
John Mo ◽  
Song Lin Ding
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
End Milling ◽  
Operating Cost ◽  
Weight Ratio ◽  
Milling Process ◽  
Machining Process ◽  
Thin Wall ◽  
Structural Components ◽  
Element Analysis

In an attempt to decrease weight, new commercial and military aircraft are designs with unitised monolithic metal structural components which contains of thinner ribs (i.e., walls) and webs (i.e., floors). Most of the unitised monolithic metal structural components are machined from solid plate or forgings with the start-to-finish weight ratio of 20:1. The resulting thin-walled structure often suffers a deformation which causes a dimensional surface error due to the action of the cutting force generated during the machining process. To alleviate the resulting surface errors, current practices rely on machining through repetitive feeding several times and manual calibration which resulting in long cycle times, low productivity and high operating cost. A finite element analysis (FEA) machining model is developed in this project to specifically predict the distortion or deflection of the part during end milling process. The model aims to provide an input for downstream decision making on error compensation strategy when machining a thin-wall unitised monolithic metal structural components. A set of machining tests have been done in order to validate the accuracy of the model and the results between simulation and experiment are found in a good agreement.

scholarly journals Analisa Desain Rangka Alat Compact Heat Induction Press Menggunakan Metode Finite Element Analysis

2021 ◽  
Vol 5 (2) ◽  
pp. 83
Author(s):  
Ilham Taufik Maulana ◽  
Ahmad Zohari ◽  
Adik Susilo Wardoyo ◽  
Pilar Adhana Heryanto
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Safety Factor ◽  
Material Selection ◽  
Raw Materials ◽  
Selection Procedure ◽  
Machining Process ◽  
Element Analysis ◽  
Frame Design ◽  
Use Of Technology

<p><em>In manufacturing technology, accuracy, effectiveness, and efficiency are important factors because the use of technology is expected to maximize quality and quantity with existing resources. The manufacturing process is the process of making products starting with the selection of raw materials and the machining process following the design to suit the needs. In other words, design is the main thing before carrying out manufacturing activities. Meanwhile, in designing a machine, it is necessary to have a material selection procedure according to the application conditions. The strength of the material can be obtained by simulating it using the Finite Element Analysis (FEA) method. This simulation aims to determine the maximum safe load limit on the tool frame design. In this study, the design of the tool frame made was given 5 loading treatments, the minimum loading was 50kg and the maximum loading was 200kg. Based on the simulation results, the maximum safety factor occurs at 50 kg loading of 10,019 ul and the minimum safety factor occurs at 200 kg loading with a value of 3.60064 ul. Based on the analysis of the load given to the frame of the compact press and sintering tool that the designed tool is safe.</em></p>

Analysis and Simulation of Micro Electro Discharge Machining Process

2007 ◽  
Author(s):  
Dedong Gao ◽  
Ling Tian
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Pulse Discharge ◽  
Single Pulse ◽  
Machining Process ◽  
Micro Edm ◽  
Analysis Model ◽  
Element Analysis ◽  
Electro Discharge Machining ◽  
Numeric Simulation

Based on the basic thermal conductivity theory and the fact of micro electro discharge machining (micro-EDM), a finite element analysis model of micro-EDM is proposed. Through finite element analysis software ANSYS, the temperature field distribution of the single pulse discharge is simulated under the different heat source condition. It can be seen from the results that the shape of discharge crater is similar to that of molten zone of the temperature distribution. The surface roughness and material removed rate of single pulse discharge are calculated and analyzed by the numeric simulation results.

3D Finite Element Analysis of Pile-up Formation in Abrasive Machining at Low Speed

2011 ◽  
Vol 175 ◽  
pp. 211-214
Author(s):  
Wei Yu ◽  
Qiang Feng ◽  
Cheng Zu Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Abrasive Particle ◽  
Cutting Speed ◽  
Machining Process ◽  
Abrasive Machining ◽  
Element Analysis ◽  
3D Finite Element ◽  
3D Finite Element Analysis ◽  
Pile Up

Abrasive machining is widely used as final machining process. It is still challenged to investigate the fundamental knowledge on the formation mechanism of groove and pile-up in single abrasive particle cutting. A 3D finite element analysis model to simulate single abrasive particle scratching on bearing steel (52100) workpiece with low cutting speed is proposed. An adaptive meshing technique is applied to handle large mesh deformation problem of the scratching process. The formation process of groove and pile-up for workpiece material is indentified qualitatively. The simulated results show that cutting speed has little effect on lateral profile. The height and area of pile-up increase with increase of depth of cut.

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