scholarly journals Micro Ball End Milling of Titanium Alloy Using a Tool with a Microstructured Rake Face

2012 ◽  
Vol 6 (7) ◽  
pp. 1121-1131 ◽  
Author(s):  
Toshiyuki OBIKAWA ◽  
Bunji KANI
Keyword(s):  
Titanium Alloy ◽  
End Milling ◽  
Rake Face ◽  
Ball End Milling

scholarly journals Study on the Design and Cutting Performance of a Revolving Cycloid Milling Cutter

2019 ◽  
Vol 9 (14) ◽  
pp. 2915 ◽  
Author(s):  
Guangyue Wang ◽  
Xianli Liu ◽  
Weijie Gao ◽  
Bingxin Yan ◽  
Tao Chen
Keyword(s):  
Titanium Alloy ◽  
End Milling ◽  
Tangential Force ◽  
Boundary Curve ◽  
Cutting Performance ◽  
Machining Process ◽  
Rake Face ◽  
Milling Cutter ◽  
Ball End Milling ◽  
Five Axis

Problems such as low machining efficiency, severe tool wear and difficulty in safeguarding surface quality always exist in the machining process of titanium alloy with ball-end milling cutters. To address these issues, the design and manufacture of a revolving cycloid milling cutter for titanium alloy processing were studied in this paper. Firstly, the mathematical model of the revolving cycloid milling cutter contour surface was established. The parametric equation of an orthogonal helix cutting edge curve of a revolving cycloid milling cutter is presented. Then, the bottom boundary curve of the rake face is introduced. The five-axis grinding trajectory equation of revolving cycloid milling cutter rake face was derived based on the edge curve equation and coordinate transformation. Next, fabricating the revolving cycloid milling cutter and detecting the grinding accuracy of tool profile and geometric angle were performed. At last, a contrast test regarding the performance of the revolving cycloid milling cutter and the ball-end milling cutter in cutting titanium alloy TC11 was carried out. According to the test results, in comparison to the ball-end milling cutter, the revolving cycloid milling cutter had a smaller ratio of the axial force to the tangential force. Moreover, its flank face wore more slowly and evenly. As a result, a good surface processing quality can be maintained even under larger wear conditions, demonstrating an outstanding cutting performance.

scholarly journals Effect of Tool Orientation on Surface Integrity During Ball End Milling of Titanium Alloy TC17

Procedia CIRP ◽  
2016 ◽  
Vol 56 ◽  
pp. 143-148 ◽  
Author(s):  
Pan Yang ◽  
Changfeng Yao ◽  
Shaohua Xie ◽  
Dinghua Zhang ◽  
Dou Xing Tang
Keyword(s):  
Titanium Alloy ◽  
Surface Integrity ◽  
End Milling ◽  
Tool Orientation ◽  
Ball End Milling

Machining time and quadratic mean roughness optimization in ball end milling of titanium alloy Ti-6Al-4V – Aeronautic field

2020 ◽  
Vol 26 ◽  
pp. 2619-2624
Author(s):  
Wael Mersni ◽  
Mohamed Boujelbene ◽  
Sahbi Ben Salem ◽  
H.P. Singh
Keyword(s):  
Titanium Alloy ◽  
End Milling ◽  
Machining Time ◽  
Quadratic Mean ◽  
Ball End Milling

Optimizing milled titanium alloy concave surface quality with micro-textured ball-end milling cutters

2021 ◽  
Vol 16 (2) ◽  
pp. 1
Author(s):  
Lihui Wang ◽  
Shucai Yang ◽  
Xianli Liu ◽  
Xin Tong ◽  
Chunsheng He
Keyword(s):  
Titanium Alloy ◽  
Surface Quality ◽  
End Milling ◽  
Concave Surface ◽  
Ball End Milling

scholarly journals Models of the relationship among geometric parameters and anti-friction mechanism of micro-texture ball-end milling cutter

2018 ◽  
Vol 10 (6) ◽  
pp. 168781401878147 ◽  
Author(s):  
Xianli Liu ◽  
Xin Tong ◽  
Shucai Yang ◽  
Chunsheng He ◽  
Xiao Liu
Keyword(s):  
Titanium Alloy ◽  
End Milling ◽  
Geometric Parameters ◽  
Friction Mechanism ◽  
Milling Cutter ◽  
Characteristic Model ◽  
Ball End Milling ◽  
Texture Parameters ◽  
Efficient Processing ◽  
The Relationship

Researches on the effect of the micro-texture on the cutting performance and the life of cutters are mostly aimed at turning cutters, but there are few researches on the ball-end milling cutter. On the basis geometry of the micro-texture, the distribution and the relationship among the geometric parameters of micro-pits are studied. A mechanical characteristic model of machining titanium alloy with the micro-texture ball-end milling cutter is established. Optimal parameters of the micro-texture are determined by the simulation. By the test of machining the titanium alloy with the micro-texture ball-end milling cutter, anti-friction properties, the influence laws of the micro-texture diameter on forces, and area occupancy on the tool wear are studied. This article provides a theoretical reference for determining the location of the micro-texture on ball-end milling cutter and selecting texture parameters reasonably. The anti-friction mechanism of the micro-texture is revealed by the theory, which provides a theoretical basis for the efficient processing of titanium alloy.

Investigation on the stress field of milling titanium alloys with micro-textured ball-end milling cutter

2019 ◽  
Vol 233 (11) ◽  
pp. 2160-2172 ◽  
Author(s):  
Shucai Yang ◽  
Chunsheng He ◽  
Minli Zheng
Keyword(s):  
Titanium Alloy ◽  
Stress Field ◽  
Density Function ◽  
End Milling ◽  
Equivalent Stress ◽  
Force Density ◽  
Stress And Strain ◽  
Milling Force ◽  
Milling Cutter ◽  
Ball End Milling

In the milling of titanium alloy, the distribution of milling force and its related law of change seriously affect the physical properties of workpiece materials, the stress distribution on a cutter’s rake face and the interaction between the workpiece, the cutter and the chip. This article reports on a study of the stress field distribution under the conditions of anti-friction and anti-wear when cutting titanium alloy with a micro-textured ball-end milling cutter. Milling test data were used to establish empirical models of milling force and the contact area between the cutter and the chip. Based on this, the force density function of the cutter coordinate system was obtained and the equivalent stress and displacement of the cutter were simulated and analyzed. This in turn provided the means to acquire the instantaneous stress and strain relating to the cutter at any time. Analysis of the simulation results shows that the position in which the stress and strain are concentrated on the cutter is consistent with actual processing. This confirms the accuracy of the force density function and provides the basis for further study of thermo-mechanical coupling behaviors when engaged in using micro-textured ball-end milling cutters for the cutting of titanium.

Prediction of Ball End Milling Forces

1996 ◽  
Vol 118 (1) ◽  
pp. 95-103 ◽  
Author(s):  
G. Yu¨cesan ◽  
Y. Altıntas¸
Keyword(s):  
Cutting Forces ◽  
End Milling ◽  
Chip Thickness ◽  
Cutting Conditions ◽  
Analytic Representation ◽  
Rake Face ◽  
Uncut Chip Thickness ◽  
Ball End Milling ◽  
Helical Flute ◽  
Milling Forces

Mechanics of milling with ball ended helical cutters are modeled. The model is based on the analytic representation of ball shaped helical flute geometry, and its rake and clearance surfaces. It is assumed that friction and pressure loads on the rake face are proportional to the uncut chip thickness area. The load on the flank contact face is concentrated on the in cut portion of the cutting edge. The pressure and friction coefficients are identified from a set of slot ball end milling tests at different feeds and axial depth of cuts, and are used to predict the cutting forces for various cutting conditions. The experimentally verified model accurately predicts the cutting forces in three Cartesian directions.

scholarly journals Surface Integrity of Titanium Alloy Ti-6Al-4V in Ball end Milling

2012 ◽  
Vol 25 ◽  
pp. 355-362 ◽  
Author(s):  
M-B. Mhamdi ◽  
M. Boujelbene ◽  
E. Bayraktar ◽  
A. Zghal
Keyword(s):  
Titanium Alloy ◽  
Surface Integrity ◽  
End Milling ◽  
Ball End Milling
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