Dynamic cutting force on-line estimation using a 4-electrode cylindrical capacitive displacement sensor mounted on a high speed milling spindle

2008 ◽  
Vol 22 (5) ◽  
pp. 914-923 ◽  
Author(s):  
Il-Hae Kim
Keyword(s):  
Cutting Force ◽  
High Speed ◽  
Displacement Sensor ◽  
High Speed Milling ◽  
Dynamic Cutting Force ◽  
On Line ◽  
Milling Spindle

Dynamics Characteristics of High Speed Ball-End Milling Cutter for Machining Hardened Steel

2010 ◽  
Vol 455 ◽  
pp. 127-131
Author(s):  
Bin Jiang ◽  
Min Li Zheng ◽  
Jun Zhou ◽  
D.H. Xia
Keyword(s):  
Cutting Force ◽  
High Speed ◽  
End Milling ◽  
Hardened Steel ◽  
Milling Cutter ◽  
High Speed Milling ◽  
Ball End Milling ◽  
Modal Characteristics ◽  
Dynamic Cutting Force ◽  
Cutting Vibration

In order to depress cutter vibration caused by high hardness and periodic change of cutting force in high speed milling complex surface, investigated the modal characteristics of ball-end milling cutter through the modal analysis and transient analysis. Using the models of dynamic cutting force and cutting vibration, acquired dynamics characteristics of high speed ball-end milling cutter by the spectrum analysis of dynamic cutting force, simulation analysis of cutting vibration and experiment of high speed milling hardened steel. Results indicate that high speed ball-end milling energy concentrates in few special frequencies, the rotational speed and the numbers of cutter teeth determine the fundamental frequency. High speed ball-end milling cutter easily makes radial bending vibration by the lower modal characteristics, the overhang and inclination angle of cutter affect its dynamics characteristics significantly, and the modal parameters and vibration model of cutter acquired by step response method have higher credibility.

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%.

scholarly journals Cutting Performance Evaluation of the Coated Tools in High-Speed Milling of AISI 4340 Steel

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3266 ◽  
Author(s):  
Yuan Li ◽  
Guangming Zheng ◽  
Xiang Cheng ◽  
Xianhai Yang ◽  
Rufeng Xu ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Cutting Force ◽  
High Speed ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Cutting Performance ◽  
High Speed Milling ◽  
Coated Tools ◽  
Coated Tool ◽  
Aisi 4340

The cutting performance of cutting tools in high-speed machining (HSM) is an important factor restricting the machined surface integrity of the workpiece. The HSM of AISI 4340 is carried out by using coated tools with TiN/TiCN/TiAlN multi-coating, TiAlN + TiN coating, TiCN + NbC coating, and AlTiN coating, respectively. The cutting performance evaluation of the coated tools is revealed by the chip morphology, cutting force, cutting temperature, and tool wear. The results show that the serration and shear slip of the chips become more clear with the cutting speed. The lower cutting force and cutting temperature are achieved by the TiN/TiCN/TiAlN multi-coated tool. The flank wear was the dominant wear form in the milling process of AISI 4340. The dominant wear mechanisms of the coated tools include the crater wear, coating chipping, adhesion, abrasion, and diffusion. In general, a TiN/TiCN/TiAlN multi-coated tool is the most suitable tool for high-speed milling of AISI 4340, due to the lower cutting force, the lower cutting temperature, and the high resistance of the element diffusion.

High-speed milling of CFRP composites: a progressive damage model of cutting force

2019 ◽  
Vol 106 (3-4) ◽  
pp. 1005-1015
Author(s):  
Lifeng Zhang ◽  
Sheng Wang ◽  
Weilin Qiao ◽  
Zhan Li ◽  
Ning Wang ◽  
...  
Keyword(s):  
Cutting Force ◽  
High Speed ◽  
Damage Model ◽  
Progressive Damage ◽  
High Speed Milling ◽  
Cfrp Composites ◽  
Progressive Damage Model

Computing Cutter Engagement Values in Milling Tessellated Free-Form Surfaces

2010 ◽  
Vol 10 (4) ◽  
Author(s):  
Zhiyang Yao ◽  
Ajay Joneja
Keyword(s):  
Computational Model ◽  
Cutting Force ◽  
High Speed ◽  
Tool Path ◽  
Free Form ◽  
High Speed Milling ◽  
Free Form Surfaces ◽  
Potential Use ◽  
Do So

High speed milling (HSM) has great potential use in die/mold cutting, but traditional machining plans do exploit HSM capabilities effectively. An important consideration in HSM is to limit cutting force variations, and one way to do so is to reduce cutter-workpiece engagement (CWE) variations. CWE is measured as the area of the tool instantaneously engaged with the part. Estimating CWE as a function of the tool path requires repeated, expensive computations. This paper develops algorithms for a discretized computational model to make CWE computations for arbitrary shaped parts.

The effect of monolayer TiCN-, AlTiN-, TiAlN-and two layers TiCN + TiN- and AlTiN + TiN-coated cutting tools on tool wear, cutting force, surface roughness and chip morphology during high-speed milling of Ti6Al4V titanium alloy

2016 ◽  
Vol 232 (7) ◽  
pp. 1273-1286 ◽  
Author(s):  
Emel Kuram
Keyword(s):  
Surface Roughness ◽  
Titanium Alloy ◽  
Tool Wear ◽  
Cutting Force ◽  
High Speed ◽  
Cutting Tools ◽  
Chip Morphology ◽  
High Speed Milling ◽  
Ti6al4v Titanium Alloy ◽  
Coated Carbide

Tool coatings can improve the machinability performance of difficult-to-cut materials such as titanium alloys. Therefore, in the current work, high-speed milling of Ti6Al4V titanium alloy was carried out to determine the performance of various coated cutting tools. Five types of coated carbide inserts – monolayer TiCN, AlTiN, TiAlN and two layers TiCN + TiN and AlTiN + TiN, which were deposited by physical vapour deposition – were employed in the experiments. Tool wear, cutting force, surface roughness and chip morphology were evaluated and compared for different coated tools. To understand the tool wear modes and mechanisms, detailed scanning electron microscope analysis combined with energy dispersive X-ray of the worn inserts were conducted. Abrasion, adhesion, chipping and mechanical crack on flank face and coating delamination, adhesion and crater wear on rake face were observed during high-speed milling of Ti6Al4V titanium alloy. In terms of tool wear, the lowest value was obtained with TiCN-coated insert. It was also found that at the beginning of the machining pass TiAlN-coated insert and at the end of machining TiCN-coated insert gave the lowest cutting force and surface roughness values. No change in chip morphology was observed with different coated inserts.

Tool Overhang Effect on Cutting Force in High Speed Milling

2010 ◽  
Vol 34-35 ◽  
pp. 616-620 ◽  
Author(s):  
Zhen Yu Zhao ◽  
Ying Bin Du ◽  
Lei Ming Zhang ◽  
Bai Liu
Keyword(s):  
Cutting Force ◽  
High Speed ◽  
Milling Process ◽  
Processing Capacity ◽  
High Speed Machining ◽  
High Speed Milling ◽  
Rational Use ◽  
High Speed Impact ◽  
Overhang Length

Based on the amount of tool overhang under different high speed machining experiment, the overhang length on the high speed impact of cutting force in milling process is studies. On the basis, the proposed tool overhang and optimum program are proposed in high speed milling, through the rational use of tools to improve processing capacity of the tool.

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