Based on the ANSYS of Small and Deep Hole a Bit Cutting Transient Dynamic Study

2012 ◽  
Vol 503-504 ◽  
pp. 802-804 ◽  
Author(s):  
Ping Wei ◽  
Jiang Han ◽  
Hui Lian Geng
Keyword(s):  
Cutting Tool ◽  
Cutting Parameters ◽  
Empirical Method ◽  
Deep Hole ◽  
Processing Efficiency ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Scene Processing ◽  
Optimization Of Cutting Parameters ◽  
Selection Of

Introduces the general twist drill analysis, Through the continuous experiment and practice, obtained some processing key question method. As a result of small and deep hole parts of the scene processing efficiency is low, the improper selection of cutting quantity will cause premature wear of cutting tool. The traditional method is the empirical method and experimental method to solve the waste of material and time comparison. This article mainly is the finite element analysis software, the analysis of the ordinary drill thermal stress, transient dynamics, to solve the optimization of cutting parameters before processing, improve processing efficiency, save cost.

scholarly journals The research of dynamic impacts on the hydraulic structure foundation base, transformed in the process of accident recovery

2018 ◽  
Vol 251 ◽  
pp. 04040
Author(s):  
Zaven Ter-Martirosyan ◽  
Ivan Luzin
Keyword(s):  
Field Experiments ◽  
Dynamic Properties ◽  
Soil Parameters ◽  
Experimental Site ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Foundation Base ◽  
Dynamic Impacts ◽  
Scale Experiment ◽  
Selection Of

The article presents the results of a comprehensive research of the dynamic impacts on a modified base. The modified base was obtained as a result of compensatory injection at the experimental site for the accident recovery at the hydraulic engineering structure. The complex study of the dynamic impacts includes special laboratory tests to determine the soil parameters, the finite element analysis of the experimental site, taking into account the dynamic properties, the selection of the necessary equipment for field experiments based on the numerical solution results, a full-scale experiment with the measurement of the foundation sediments of the experimental site.

Study on the Cutting Parameter Optimization of Medical Titanium Alloy Based on Tools Durability

2007 ◽  
Vol 24-25 ◽  
pp. 103-108
Author(s):  
Q.L. Du ◽  
X.H. Chen ◽  
Ke Hua Zhang
Keyword(s):  
Titanium Alloy ◽  
Parameter Optimization ◽  
Cutting Tool ◽  
Tool Material ◽  
Cutting Parameters ◽  
Online Optimization ◽  
Geometrical Parameters ◽  
Cutting Parameter Optimization ◽  
Optimization Of Cutting Parameters ◽  
Tool Durability

In this paper, based on analyzing the properties of medical Ti-6Al-4V Titanium alloy, the author takes the purpose of studying the machinability of the medical Ti-6Al-4V Titanium alloy and aims at improving the tool durability. The study starts from the tool material, geometrical parameters of the tools, usage for the cutting and other aspects in order to achieve the suitability of selecting cutting tool as well as the optimization of choosing cutting usage which lays the foundation for further investigation of the machinability of the medical Ti-6Al-4V Titanium alloy and carry out the online optimization of cutting parameters.

Experimental Research on Superlong Deep-Hole Drilling Processing Technology for Steel of 4145H Drill Collar

2011 ◽  
Vol 201-203 ◽  
pp. 2597-2600
Author(s):  
Zhan Feng Liu ◽  
Rui Liang Li
Keyword(s):  
Cutting Tool ◽  
Cutting Tools ◽  
Tool Material ◽  
Cutting Parameters ◽  
Machining Process ◽  
Hole Drilling ◽  
Deep Hole ◽  
Actual Structure ◽  
Steel Processing ◽  
Drill Collar

Through the analysis for steel of 4145H drill collar, Research into the various factors of cutting, such as the cutting tool material, cutting-tool angle and cutting parameters, combined with the actual structure of the workpiece and the superlong deep-hole processing method for study. In the test, the machining process is analyzed, especially the process of boring and honing. The test result indicates that the trepanning process is stable and reliable to solve the superlong deep hole (Φ71mm×7500mm) of 4145H drill collar steel processing problems of production if the optimizing cutting method is appropriate and the cutting tools and the cutting parameters are rational.

Optimum design of a cutting tool for manufacturing rotary knives

2008 ◽  
Vol 223 (2) ◽  
pp. 463-472 ◽  
Author(s):  
S-L Chang ◽  
H-C Tseng ◽  
J-K Hsieh ◽  
J-H Liu ◽  
C-H Hung
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sequential Quadratic Programming ◽  
Traditional Method ◽  
Cutting Tool ◽  
Design Parameters ◽  
Element Analysis ◽  
Manufacturing Efficiency ◽  
The Finite Element Analysis ◽  
Chip Discharge

In this article, the design parameters of a cutting tool for manufacturing a rotary knife with multi-cutting angles have been studied. An objective function and constraints are defined, and optimized solutions are found by using two methods: global search and sequential quadratic programming. Hobbing and the concept of tooth undercutting were used to manufacture a rotary knife with multi-cutting angles. The proposed method not only improved the manufacturing efficiency over the traditional method (milling and grinding), but also significantly improved the strength of the rotary knife and the chip discharge ability, as shown by the finite-element analysis of the stress distribution and deformation of two different kinds of rotary knives.

Study on Object Function of Milling Insert Adhering Disrepair for Machining the Refractory Steel

2013 ◽  
Vol 670 ◽  
pp. 147-152
Author(s):  
Ming Yang Wu ◽  
X.L. Liu ◽  
Y.N. Cheng
Keyword(s):  
Density Function ◽  
Cutting Parameters ◽  
Temperature Fields ◽  
Rake Face ◽  
Object Function ◽  
Machine Material ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Technical Basis ◽  
Fuzzy Mathematic

Based on the milling experiments for the difficult-to-machine material 3Cr-1Mo-1/4V steel, as the goal of minimal adhering disrepair, taking the waved-edge milling insert (the rake face is curve plane) developed by Harbin University of Science and Technology as an example, we have study on the optimization object function of the milling insert grooves. Based on the heat density function of the 3D complex groove milling insert, setting the heat density function as boundary conditions, we have the finite element analysis (FEA) on the temperature fields of different cutting parameters, and have fuzzy synthetical judgement on the temperature fields with fuzzy mathematic theory. We build the object function relation between the fuzzy synthetical judgement results and cutting parameters of the adhering disrepair, so to have groove design optimization. So provide the theoretic and technical basis for solving the adhering disrepair problem and groove optimization.

scholarly journals Comparison between finite element analysis and rheological models for chip formation

2020 ◽  
Vol 23 (2) ◽  
pp. 255-268
Author(s):  
Olga Liivapuu ◽  
Jüri Olt ◽  
Tanel Tärgla
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Methods ◽  
Chip Formation ◽  
Cutting Parameters ◽  
Finite Element Models ◽  
Empirical Methods ◽  
Element Analysis ◽  
Rheological Models ◽  
Selection Of

In the process of cutting, often the selection of cutting parameters is done considering empirical methods. This approach is more expensive and does not usually lead to the best solutions. Numerical methods for simulating the chip formation have been under development over the last thirty years. The aim of the present research is to compare models based on rheological properties of metals with 2D Finite Element Models of chip formation process.

An Experimental Study on Optimization of Cutting Parameters for Disk Milling Titanium Blisk

2014 ◽  
Vol 800-801 ◽  
pp. 97-101
Author(s):  
Yao Nan Cheng ◽  
Yue Zhang ◽  
Dian Ge Zuo ◽  
Xin Min Feng
Keyword(s):  
Cutting Force ◽  
Simulation Analysis ◽  
Removal Rate ◽  
Equivalent Stress ◽  
Cutting Parameters ◽  
Milling Process ◽  
Cutting Depth ◽  
Processing Efficiency ◽  
Optimization Of Cutting Parameters ◽  
The Impact

Blisks are important components of aircraft engines. Its machining plays an important role in a aerospace industry. Blisk processing efficiency has become a hot topic in the field of machining. Disk milling is a new processing method to achieve efficiency. In order to optimize disk milling process parameters of blisk, the use of full-factor experimental for researching TC4 titanium disc milling process. Analyze the impact of different cutting parameters on cutting force, the results show: during milling titanium by Discal Cutter, with the increasing of feed per tooth, the cutting force increases. But cutting forces in three directions has the different influence. Feed per tooth corresponding with radial cutting depth. In order to guarantee the material removal rate, it can be selected smaller feed per tooth and larger radial cutting depth. Through the stress simulation analysis on the blade, it can be carried out that the maximum strain of blade is concentrated at the tip arc. The equivalent stress is mainly concentrated at the main cutting edge and the tip arc. It can provide the basis for future tool design.

Nonlinear Analysis of Micro Electric Vehicles Shock Absorbing Coil Spring

2013 ◽  
Vol 753-755 ◽  
pp. 1102-1105
Author(s):  
Li Ying Ju ◽  
Yao Gang Li ◽  
Chang Sheng Qiao ◽  
Hong Chao Ji ◽  
Zhi Ran Liu
Keyword(s):  
Nonlinear Analysis ◽  
Electric Vehicles ◽  
Optimization Design ◽  
Coil Spring ◽  
Analysis Software ◽  
Element Analysis ◽  
Theoretical Support ◽  
Flexible Surface ◽  
The Finite Element Analysis ◽  
Selection Of

The article mainly studies the micro electric vehicles shock absorbing coil spring. For its actual working conditions, the finite element analysis software ANSYS is used to analyze the nonlinear of the spring. The large deformation and the contact between flexible surface and flexible surface should be considered in the nonlinear analysis. And we get the spring stress, displacement etc. Then the results are reprocessed. For the shock absorbing coil spring used in the micro electric vehicles, there are no improved research methods and theoretical support, this study provides the basis for optimization design and selection of the shock absorbing coil spring.

The Analysis and Study Based on MEMS Sensor

2011 ◽  
Vol 282-283 ◽  
pp. 271-274
Author(s):  
Yan Bing LI ◽  
Meng Yuan ◽  
Ji Yong Xu
Keyword(s):  
Pressure Sensor ◽  
Dynamic Properties ◽  
Wheatstone Bridge ◽  
Response Speed ◽  
Periodic Variation ◽  
Element Analysis ◽  
Structure Selection ◽  
Mems Sensor ◽  
The Finite Element Analysis ◽  
Selection Of

A kind of ultra micro pressure range MEMS pressure sensor is elaborated and analyzed in detail. The chip structure selection of pressure sensor is researched by the relative theory and the reasonable chip structure is designed in this paper. In order to design the Wheatstone bridge properly, we explore the width and length of the resistors on the membrane of the pressure sensor. At last, through the finite element analysis method, the relevant dynamic properties are analyzed for the sensor too. The dynamic response time is 3.2×10-5s. The response speed is fast and the sensor has many advantages under the periodic variation pressure.

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