Study on Cutting Forces in High-Speed Milling of LF21 Aluminum Alloy and Regression Model of Cutting Forces

2009 ◽  
Vol 69-70 ◽  
pp. 413-417
Author(s):  
Z.H. Wang ◽  
Jun Tan Yuan ◽  
X.Q. Hu ◽  
X.W. Xiong
Keyword(s):  
Regression Model ◽  
Cutting Force ◽  
Cutting Forces ◽  
High Speed ◽  
Cutting Parameters ◽  
Factors Influencing ◽  
Machining Deformation ◽  
Key Factor ◽  
The Right ◽  
Parameter Influence

Cutting force is a key factor influencing the machining deformation of weak rigidity workpieces. In order to reduce the machining deformation and improve the process precision and the surface quality, it is necessary to study the factors influencing the cutting force and build the regression model of cutting forces. Firstly, the cutting parameters influencing cutting force are analyzed for LF21. Secondly, how certain cutting parameter influence the cutting component forces (Fx, Fy, Fz) are studied by the correlation analysis and the approach to choosing the right cutting parameters for machining the weak rigidity workpieces are presented. Finally, the regression model of cutting forces based on the cutting parameters is investigated in this paper.

Research on the Relation between Cutting Parameters and Axial Cutting Force in Helical Milling Process

2013 ◽  
Vol 690-693 ◽  
pp. 2480-2483 ◽  
Author(s):  
Hai Yan Wang ◽  
Xu Da Qin
Keyword(s):  
Regression Model ◽  
Cutting Force ◽  
Tool Life ◽  
Cutting Forces ◽  
Regression Models ◽  
Cutting Parameters ◽  
Milling Process ◽  
Helical Milling ◽  
Die Steel ◽  
Axial Forces

The select of cutting parameters is not only directly related to the productivity, but also related to the change of cutting forces. Axial cutting force is too large to be ignored in the helical milling process. In this paper, the axial forces in helical milling of Cold die steel under different cutting parameters are measured, and the regression model of the axial force about the change of the cutting parameters is established, the influence of the cutting parameters on the axial cutting force is analyzed through the experimental results and the regression models respectively. The main purpose is to control axial cutting force and improve tool life in the cutting process.

Study on Cutting Forces of Mg-6Nd-4Gd-3Y Magnesium Alloy in High-Speed Milling

2011 ◽  
Vol 338 ◽  
pp. 709-713
Author(s):  
Zhen Hua Wang ◽  
Jun Tang Yuan
Keyword(s):  
Magnesium Alloy ◽  
Cutting Force ◽  
Cutting Forces ◽  
High Speed ◽  
Polynomial Regression ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Partial Least Square ◽  
Depth Of Cut ◽  
High Speed Milling

In this paper, 24full factorial design and homogeneous design were applied to the high-speed milling experiments for Mg-6Nd-4Gd-3Y magnesium alloy. According to the experimental results of cutting force, the effect of cutting parameters (cutting speed, feed per tooth, depth of cut, and width of cut) on cutting force was discussed, and the nonlinear polynomial regression models of cutting forces based on the cutting parameters were presented by the partial least-square regression.

Influence on Cutting Forces and Vibration in High Speed Machining Pocket Corner

2011 ◽  
Vol 189-193 ◽  
pp. 3084-3088
Author(s):  
De Wen Tang ◽  
Ru Shu Peng ◽  
Rui Lan Zhao
Keyword(s):  
Cutting Force ◽  
Cutting Forces ◽  
High Speed ◽  
Sudden Change ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Poor Quality ◽  
Depth Of Cut ◽  
Processing Efficiency ◽  
Radial Depth

High speed milling hardened mould steel (above HRC50) at pocket corner generates the cutting forces increase and vibration gets fiercely because of the sudden change of cutting direction. It will cause serious wear and possible breakage of cutting tool, and poor quality of parts. Hence, the need to select reasonable cutting parameters and adopt appropriate cutting strategies will help them to achieve their goal. In this paper, the effects cutting parameters including cutting speed, pocket corner angle, feed rate per tooth and radial depth of cut on cutting force and vibration are studied. The results show that sharper pocket corner results in the increase of cutting force and makes vibration strong. Cutting force increase with the increase of cutting speeding, feed per tooth and radial depth of cut. The optimum of cutting speed leads to the decrease of vibration. It is proposed that cutting parameters should be optimized to improve tool life and processing efficiency.

Cutting Performance of Diamond Coated, TiAlN Coated and Carbide Cutting Tools in High Speed Milling Graphite

2014 ◽  
Vol 800-801 ◽  
pp. 451-459
Author(s):  
Yu Hai Zhou ◽  
Cheng Yong Wang ◽  
Qi Ming Wang
Keyword(s):  
Cutting Force ◽  
Cutting Forces ◽  
High Speed ◽  
Orthogonal Experiment ◽  
Cutting Tools ◽  
Cutting Parameters ◽  
Cutting Performance ◽  
Depth Of Cut ◽  
High Speed Milling ◽  
Radial Depth

This paper focusing on cutting performance high speed milling Electrical Discharging Machining (EDM) graphite with diamond coated、Carbide (WC) and TiAlN coated cutting Tools. tools wear, cutting force and machined surface had been researched. Experiment study including cutting speed, feed rate per tooth, radial depth of cut, axial depth of cut, and material of tools factors effects on the cutting forces. Cutting parameters are optimized based on the orthogonal experiment. Experiment in high speed milling with diamond coated tools all comparison with TiAlN coated and Carbide (WC) tools. On the surface quality, cutting forces and tool wear influence graphite cutting tool materials research, process parameters, tool design and optimization of processing parameters to provide supportive data. The minimum cutting force as the goal, through the orthogonal experiment for the optimization of cutting parameters obtained for the high speed milling graphite with diamond-coated tool: cutting force 360m/min,feed per tooth 0.15mm/z, radial depth of cut 0.9mm, axial depth of 9mm.

Cutting Temperature and Cutting Forces Investigation Based on the Taguchi Design Method when High-Speed Milling of Titanium Matrix Composites with PCD Tool

2016 ◽  
Vol 836-837 ◽  
pp. 168-174 ◽  
Author(s):  
Ying Fei Ge ◽  
Hai Xiang Huan ◽  
Jiu Hua Xu
Keyword(s):  
Cutting Force ◽  
Feed Rate ◽  
Cutting Forces ◽  
High Speed ◽  
Volume Fraction ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
High Speed Milling ◽  
Radial Depth

High-speed milling tests were performed on vol. (5%-8%) TiCp/TC4 composite in the speed range of 50-250 m/min using PCD tools to nvestigate the cutting temperature and the cutting forces. The results showed that radial depth of cut and cutting speed were the two significant influences that affected the cutting forces based on the Taguchi prediction. Increasing radial depth of cut and feed rate will increase the cutting force while increasing cutting speed will decrease the cutting force. Cutting force increased less than 5% when the reinforcement volume fraction in the composites increased from 0% to 8%. Radial depth of cut was the only significant influence factor on the cutting temperature. Cutting temperature increased with the increasing radial depth of cut, feed rate or cutting speed. The cutting temperature for the titanium composites was 40-90 °C higher than that for the TC4 matrix. However, the cutting temperature decreased by 4% when the reinforcement's volume fraction increased from 5% to 8%.

Cutting Force Empirical Model of High-Speed Precision Hard Cutting GCr15

2009 ◽  
Vol 69-70 ◽  
pp. 301-305
Author(s):  
Jing Shu Hu ◽  
Yuan Sheng Zhai ◽  
Fu Gang Yan ◽  
Yu Fu Li ◽  
Xian Li Liu
Keyword(s):  
Cutting Force ◽  
Empirical Model ◽  
High Speed ◽  
Orthogonal Design ◽  
Cutting Speed ◽  
Least Square Method ◽  
Cutting Parameters ◽  
Least Square ◽  
Physical Parameters ◽  
Hard Cutting

In the cutting process, cutting force is one of the important physical parameters, which affects the generation of cutting heat, tool life and surface precision of workpiece directly. In this paper an orthogonal design of experiment and subsequent data is analyzed using high speed finish hard cutting GCr15 whose hardness is 65HRC. Cutting speed is 200-400m/min, to study the influence of cutting parameters on cutting force, cutting force empirical model has obtained from least square method.

scholarly journals Stability analysis for a single-point cutting tool deflection in turning operation

2019 ◽  
Vol 11 (6) ◽  
pp. 168781401985318
Author(s):  
Amon Gasagara ◽  
Wuyin Jin ◽  
Angelique Uwimbabazi
Keyword(s):  
Cutting Forces ◽  
High Speed ◽  
Cutting Tool ◽  
Single Point ◽  
Three Dimensional ◽  
High Speed Steel ◽  
Cutting Parameters ◽  
Depth Of Cut ◽  
Beam Model ◽  
Tool Deflection

In this article, a new model of regenerative vibrations due to the deflection of the cutting tool in turning is proposed. The previous study reported chatter as a result of cutting a wavy surface of the previous cut. The proposed model takes into account cutting forces as the main factor of tool deflection. A cantilever beam model is used to establish a numerical model of the tool deflection. Three-dimensional finite element method is used to estimate the tool permissible deflection under the action of the cutting load. To analyze the system dynamic behavior, 1-degree-of-freedom model is used. MATLAB is used to compute the system time series from the initial value using fourth-order Runge–Kutta numerical integration. A straight hard turning with minimal fluid application experiment is used to obtain cutting forces under stable and chatter conditions. A single-point cutting tool made from high-speed steel is used for cutting. Experiment results showed that for the cutting parameters above 0.1mm/rev feed and [Formula: see text]mm depth of cut, the system develops fluctuations and higher chatter vibration frequency. Dynamic model vibration results showed that the cutting tool deflection induces chatter vibrations which transit from periodic, quasi-periodic, and chaotic type.

Simulation of Finite Element Analysis for Cutting Force of High-Speed Dry Gear Milling by Flying Cutter

2011 ◽  
Vol 86 ◽  
pp. 100-103
Author(s):  
Qian Guo ◽  
Chao Lin ◽  
Wei Quan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Comparative Analysis ◽  
Cutting Force ◽  
High Speed ◽  
Cutting Parameters ◽  
Force Model ◽  
Cutting Force Model ◽  
Element Analysis ◽  
Gear Hobbing

This paper makes the emulate experimental research of cutting force in high-speed dry gear milling by flying cutter with finite element analysis method by using the established cutting force model yet, makes the comparative analysis for the result of simulation experiment and theoretical calculation, verifies the correctness of cutting force model and calculation method, makes the comparative analysis for the influencing relations and changing laws of cutting force and cutting parameters and so many factors, and reveals the cutting mechanism of high-speed dry gear milling by flying cutter initially. By the research of this paper, it provides basic theory for subsequent cutting machine technology of high-speed dry gear hobbing, and establishes the theoretical basis for the spread and exploitation of this technology.

An Experiment-Based Investigation on Characteristic and Model of Milling Forces during End-Milling Aluminum Alloy

2014 ◽  
Vol 494-495 ◽  
pp. 602-605
Author(s):  
Zeng Hui An ◽  
Xiu Li Fu ◽  
Ya Nan Pan ◽  
Ai Jun Tang
Keyword(s):  
Aluminum Alloy ◽  
Cutting Force ◽  
Cutting Forces ◽  
High Speed ◽  
Metal Cutting ◽  
End Milling ◽  
Influence Factors ◽  
Cutting Speed ◽  
Cutting Depth ◽  
Milling Forces

Cutting forces is one of the important physical phenomena in metal cutting process. It directly affects the surface quality of machining, tool life and cutting stability. The orthogonal experiments of cutting forces and influence factors with indexable and solid end mill were accomplished and the predictive model of milling force was established during high speed end milling 7050-T7451 aluminum alloy. The paper makes research mainly on the influence which the cutting speed, cutting depth and feed have on the cutting force. The experimental results of single factor showed that the cutting forces increase earlier and drop later with the increase of cutting speed, and the cutting speed of inflexion for 7050-T7451 is 1100m/min. As axial cutting depth, radial cutting depth and feed rate increase, the cutting force grows in different degree. The cutting force is particularly sensitive to axial cutting depth and slightly to the radial cutting depth.

Finite Element Simulation on High Speed Cutting of Hardened 45 Steel Based on ABAQUS

2013 ◽  
Vol 579-580 ◽  
pp. 202-207
Author(s):  
Guo He Li ◽  
Hou Jun Qi ◽  
Bing Yan
Keyword(s):  
Finite Element ◽  
Cutting Force ◽  
Finite Element Simulation ◽  
High Speed ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Cutting Process ◽  
High Speed Cutting ◽  
Geometry Model ◽  
Element Simulation

For the high speed cutting process of hardened 45 steel (45HRC), a finite element simulation of cutting deformation, cutting force and cutting temperature is finished with the large general finite element software ABAQUS. Through the building of geometry model, material model and heat conduction model, also the determination of boundary conditions, separation rule and friction condition, a thermal mechanical coupling finite element model of high speed cutting for hardened 45 steel is built. The serrated chip, cutting force and cutting temperature can be predicted. The comparison of experiment and simulation shows the validity of the model. The influence of cutting parameters on cutting process is investigated by the simulation under different cutting depthes and rake angles. The results show that as the increase of rake angle, the segment degree, cutting force and cutting temperature decrease. But the segment degree, also the cutting force and cutting temperature increase with the increase of cutting depth. This study is useful for the selection of cutting parameters of hardened steel.

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