Effect of microstructure evolution on chip formation and fracture during high-speed cutting of single phase metals

2016 ◽  
Vol 91 (1-4) ◽  
pp. 823-833 ◽  
Author(s):  
Hongguang Liu ◽  
Jun Zhang ◽  
Xiang Xu ◽  
Yifei Jiang ◽  
Yong He ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Chip Formation ◽  
High Speed ◽  
Single Phase ◽  
High Speed Cutting ◽  
On Chip ◽  
Effect Of Microstructure

scholarly journals Study on Chip Formation in Ultra High Speed Cutting

1970 ◽  
Vol 36 (429) ◽  
pp. 663-668
Author(s):  
Akira YAMAMOTO ◽  
Shimesu NAKAMURA ◽  
Motosada KANDA
Keyword(s):  
Chip Formation ◽  
High Speed ◽  
High Speed Cutting ◽  
Ultra High Speed ◽  
On Chip

CHIP FORMATION ANALYSIS FOR HIGH SPEED CUTTING

2003 ◽  
Vol 02 (02) ◽  
pp. 247-254 ◽  
Author(s):  
YAN LUO
Keyword(s):  
Tool Wear ◽  
Chip Formation ◽  
High Speed ◽  
Production Management ◽  
New Technologies ◽  
Manufacturing Cost ◽  
High Speed Cutting ◽  
On Chip ◽  
Machining Strategies ◽  
Chip Geometry

Enterprise has to reduce time and cost of product development to face global competition. New technologies and machining strategies have been widely adopted in manufacturing enterprise such as high-speed cutting (HSC). Tool wear prediction will be useful for tool management and thus, reducing the manufacturing cost of HSC. This related project is developed at the Institute of Production Management, Technology and Machine Tools (PTW), TU Darmstadt. The aim of the project is to find a solution to predict tool wear by calculation for HSC. This paper focuses on chip formation analysis. Chip geometry will be generated and calculated to estimate tool wear. The paper presents an algorithm to visualize chip geometry for ball end tool and discusses further the parameters features of chip section.

Chip Formation in High-Speed Cutting of Copper and Aluminum

1963 ◽  
Vol 85 (4) ◽  
pp. 365-372 ◽  
Author(s):  
K. J. Trigger ◽  
B. F. von Turkovich
Keyword(s):  
Plastic Deformation ◽  
Chip Formation ◽  
High Speed ◽  
Metal Cutting ◽  
Initial Temperature ◽  
High Speed Machining ◽  
High Speed Cutting ◽  
Work Material ◽  
On Chip ◽  
Cutting Behavior

This paper presents metal-cutting data for the high-speed machining of copper and aluminum, each at two levels of purity, and over a range of workpiece temperatures from −326 deg F (80 deg K) to 550 deg F (560 deg K). It has been found that cutting behavior is influenced by purity of work material, its initial temperature, and extent of tool-chip contact. The influence of plastic deformation on chip hardness has been found to be intimately associated with the purity of the work material.

scholarly journals Study on Chip Formation in Ultra High Speed Cutting (Report 2)

1971 ◽  
Vol 37 (433) ◽  
pp. 138-144
Author(s):  
Akira YAMAMOTO ◽  
Motosada KANDA ◽  
Takahiro TSUJINAGA
Keyword(s):  
Chip Formation ◽  
High Speed ◽  
High Speed Cutting ◽  
Ultra High Speed ◽  
On Chip

Microstructure Evolution of Ti-6Al-4V Alloy during High Speed Cutting: An Investigation Using Finite Element Simulation

2013 ◽  
Vol 421 ◽  
pp. 193-200 ◽  
Author(s):  
Tao Cui ◽  
Hong Wei Zhao ◽  
Chuang Liu ◽  
Ye Tian
Keyword(s):  
Grain Size ◽  
Dynamic Recrystallization ◽  
Microstructure Evolution ◽  
Chip Formation ◽  
High Speed ◽  
Shear Bands ◽  
Cutting Temperature ◽  
Serrated Chip ◽  
High Speed Cutting ◽  
Serrated Chip Formation

In this paper, a novel model combining the microstructure prediction model and a modified constitutive model of the Johnson-Cook (JC) model was developed and embedded into FEM software via the user subroutine. The chip formation and microstructure evolution in high speed cutting of Ti-6Al-4V alloy were simulated based on the presented model. The results indicated that dynamic recrystallization mainly happened in ASBs, where the grain size had a big decline. According to the variation of cutting temperature and grain size of microstructure, the mechanism of the adiabatic shear bands (ASBs) formation was investigated deeply and concluded that dynamic recrystallization was the root cause of the serrated chip formation.

Effect Mechanism of Nitrogen Gas on Chip Formation in High Speed Cutting of Ti6Al4V Alloy Based on FEM Simulation

2009 ◽  
Vol 626-627 ◽  
pp. 177-182 ◽  
Author(s):  
Wei Zhao ◽  
Ning He ◽  
Liang Li
Keyword(s):  
Finite Element ◽  
Chip Formation ◽  
High Speed ◽  
Ti6al4v Alloy ◽  
Cutting Process ◽  
Nitrogen Gas ◽  
High Speed Cutting ◽  
Finite Element Software ◽  
On Chip ◽  
Cutting Speeds

Titanium alloys are known for their strong chemical reactivity with surrounding gas due to their high chemical affinity, especially in dry machining. This paper describes a study of chip formation characteristics under nitrogen gas media when machining Ti6Al4V alloy with WC-Co cemented carbide cutting tools at high cutting speeds. Based on the experimental study, a finite element model of two-dimensional orthogonal cutting process for Ti6Al4V alloy at different cutting conditions was developed using a commercial finite element software Deform-2D. Saw-tooth chips with adiabatic shear bands were produced in both experiments and simulations. And the enhanced cooling and anti-frictional effects of nitrogen gas upon the high speed cutting process of Ti6Al4V alloy were analyzed. Results of this investigation indicate that the anti-frictional performance of nitrogen gas has a significant effect on chip formation when machining Ti6Al4V alloy at high cutting speeds. Compared to air, Nitrogen gas is more suitable in improving the contact conditions at chip-tool interfaces and in increasing the shear band frequency of chip formation during high speed cutting of Ti6Al4V alloy.

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