Experimental Studies of Cutting Temperature during High-Speed Milling of Aerospace Aluminum

2008 ◽  
Vol 392-394 ◽  
pp. 719-723 ◽  
Author(s):  
W.J. Bai ◽  
Ying Lin Ke ◽  
H.B. Wu ◽  
Hui Yue Dong
Keyword(s):  
High Speed ◽  
Experimental Studies ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Orthogonal Experimental Design ◽  
High Speed Milling ◽  
Thermocouple Calibration ◽  
Cutting Heat ◽  
Predicted Values ◽  
Optimization Of Cutting Parameters

A semi-artificial thermocouple device is developed to explore the dynamic cutting temperature variation rules in high-speed milling of Al7050-T7451 aluminum alloy. Both the aluminum-constantan thermocouple calibration diagram and cutting temperature curves are obtained. The cutting temperature empirical formula is constructed by means of orthogonal experimental design and multivariate linear regression analyses. It shows a reasonable good match between the theoretical predicted values and the measured temperatures. This allows for the optimization of cutting parameters and the exploration of machining deformation induced by the cutting heat in high-speed milling of aerospace aluminum monolithic constructions.

Experimental Studies on Cutting Temperature of Nickel-Based Supper Alloy Inconel 718

2013 ◽  
Vol 584 ◽  
pp. 20-23
Author(s):  
Mao Hua Xiao ◽  
Ning He ◽  
Liang Li ◽  
Xiu Qing Fu
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
Experimental Studies ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Depth Of Cut ◽  
High Speed Milling ◽  
Radial Depth ◽  
The Impact

The method to measure the cutting speed when high speed milling nickel alloy Inconel 718 based on semi-artificial thermocouple. The cutting parameters, tool wear and so on the cutting temperature were analyzed. The tests showed that the temperature was gradually increased with the increase of cutting speed. The cutting speed must be more than 600m/min, when the ceramic tools would perform better cutting performance in the high-speed milling nickel-based superalloy. In order to achieve more efficient machining, milling speed can be increased to more than 1000m/min. The impact amount of Radial depth of cut and feed per tooth were relatively small.

Stability Prediction during Thin-Walled Workpiece High-Speed Milling

2009 ◽  
Vol 69-70 ◽  
pp. 428-432 ◽  
Author(s):  
Qing Hua Song ◽  
Yi Wan ◽  
Shui Qing Yu ◽  
Xing Ai ◽  
J.Y. Pang
Keyword(s):  
High Speed ◽  
Dynamic Properties ◽  
Removal Rate ◽  
Cutting Parameters ◽  
Milling Process ◽  
Machining Process ◽  
High Speed Milling ◽  
Thin Walled ◽  
Optimization Of Cutting Parameters ◽  
Free Material

A method for predicting the stability of thin-walled workpiece milling process is described. The proposed approach takes into account the dynamic characteristics of workpiece changing with tool positions. A dedicated thin-walled workpiece representative of a typical industrial application is designed and modeled by finite element method (FEM). The workpiece frequency response function (FRF) depending on tool positions is obtained. A specific 3D stability chart (SC) for different spindle speeds and different tool positions is then elaborated by scanning the dynamic properties of workpiece along the machined direction throughout the machining process. The dynamic optimization of cutting parameters for increasing the chatter free material removal rate and surface finish is presented through considering the chatter vibration and forced vibration. The investigations are compared and verified by high speed milling experiments with flexible workpiece.

The Optimization of Cutting Parameters for Surface Roughness in High Speed Milling Based on Taguchi Method

2012 ◽  
Vol 723 ◽  
pp. 196-201 ◽  
Author(s):  
Peng Nan Li ◽  
Ming Chen ◽  
Xiao Jian Kang ◽  
Li Na Zhang ◽  
Ming Zhou
Keyword(s):  
Surface Roughness ◽  
Taguchi Method ◽  
High Speed ◽  
Cutting Parameters ◽  
Milling Process ◽  
High Speed Milling ◽  
Aisi 1045 Steel ◽  
Optimization Of Cutting Parameters ◽  
1045 Steel ◽  
Optimal Cutting Parameters

In this study AISI 1045 steel of different hardness are used in high speed milling. According to Taguchi method, cutting parameters (milling speed, milling depth, feed per tooth) and workpiece hardness for the influence of high speed milling of the surface roughness are optimized. Through this study, not only the optimal cutting parameters of the minimum surface roughness is obtained, but also the main cutting parameters that effect performance in high speed milling is analysed. Researching results can be provided to guide establishment of the high speed milling process.

scholarly journals Optimization of Cutting Parameters in Hard Turning of OHNS Steel

2019 ◽  
Vol 8 (2S3) ◽  
pp. 43-45 ◽  
Keyword(s):  
Hard Turning ◽  
Flank Wear ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Cutting Fluid ◽  
Dry Machining ◽  
Parameters Analysis ◽  
Predicted Values ◽  
Experimental Values ◽  
Optimization Of Cutting Parameters

Turning of hardened steel is normally carried out with copious supply of cutting fluid to improve the cutting performance. Most of the cutting fluids in regular use are petroleum based emulsions which create several environmental problems. In this context, pure dry machining is a logical alternative as it is free from the problems associated with the cutting fluid. In this study an effort was made to study the effect of flank wear and cutting temperature during hard turning of OHNS steel under dry condition. A detailed analysis was performed using Taguchi technique to find out the effect of above mentioned parameters. Analysis of Variance (ANOVA) was carried out to find out the influence of individual parameters on flank wear and cutting temperature. Confirmation tests were performed to compare the predicted values with the experimental values and it was found that the results matched well with the experimental results

Cutting Temperature in High Speed Milling of a Near Alpha Titanium Alloy

2006 ◽  
Vol 315-316 ◽  
pp. 145-149 ◽  
Author(s):  
Guo Sheng Geng ◽  
Jiu Hua Xu ◽  
Yu Can Fu ◽  
Y.F. Ge ◽  
C. Su
Keyword(s):  
Titanium Alloy ◽  
High Speed ◽  
Chemical Reactivity ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Machining Accuracy ◽  
High Speed Milling ◽  
Thermocouple Method ◽  
Alpha Titanium ◽  
Cemented Carbide Tools

Cutting temperature has direct effects on tool wear and tool life, as well as machining accuracy and machining quality. Titanium alloys, however, are generally machined at lower cutting speeds with cemented carbide tools due to its low thermal conductivity and high chemical reactivity with cutting tool materials. This paper deals with cutting temperature in high-speed milling of a near alpha titanium alloy. The measuring principle of cutting temperature by the workpiece-constantan thermocouple method was illustrated and the physical meaning of the electromotive force (EMF) signals was described in the paper. The effects of cutting parameters and wear status on cutting temperature were studied, and the temperature distribution along the cutting edge was investigated.

Design Optimization of Cutting Parameters Using Taguchi Method and ANOVA during High-Speed Machining Hardened H13 Steel

2009 ◽  
Vol 626-627 ◽  
pp. 129-134
Author(s):  
Song Zhang ◽  
Y.B. Guo
Keyword(s):  
Surface Roughness ◽  
Design Optimization ◽  
High Speed ◽  
Cutting Parameters ◽  
Depth Of Cut ◽  
High Speed Machining ◽  
H13 Steel ◽  
High Speed Milling ◽  
Optimization Of Cutting Parameters ◽  
Coated Carbide

High-speed machining thoroughly hardened tool steels has emerged as a competitive finishing technology for making dies and molds. The objective of this paper is to develop an optimization method for the better (i. e., lower value) surface roughness in terms of cutting parameters when high-speed milling hardened H13 steel. The cutting parameters to be considered were cutting speed, feed per tooth, radial depth of cut, and axial depth of cut, respectively. A series of high-speed milling experiments of hardened H13 steel using PVD coated carbide inserts without any cutting fluids were performed to measure the surface roughness data. Taguchi orthogonal arrays, signal-to-noise (S/N) ratio, and analysis of variance (ANOVA) were used to evaluate the effects of cutting parameters on surface roughness and to find the optimal factor/level combination for the better surface roughness. The investigations of this study would be used for design optimization of cutting parameters to obtain the better surface roughness.

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