scholarly journals Studies on Orthogonal Cutting Mechanism with Pb-Sn Alloy

1969 ◽  
Vol 35 (275) ◽  
pp. 1557-1564
Author(s):  
Yoshiya FUJII ◽  
Kiyoshi TAGAMI ◽  
Masaru MATSUNO ◽  
Katsuhide MIURA
Keyword(s):  
Orthogonal Cutting ◽  
Cutting Mechanism

scholarly journals Cutting Mechanism of Sulfrized Free-Machining Steel

2009 ◽  
Vol 407-408 ◽  
pp. 416-419 ◽  
Author(s):  
Junsuke Fujiwara ◽  
Tsubasa Kawazoe ◽  
Naoki Matsui
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Deformation Behavior ◽  
Environmental Problem ◽  
Orthogonal Cutting ◽  
Machining Performance ◽  
Cutting Mechanism ◽  
Deformation Behaviors ◽  
Production Industry ◽  
Scanning Electron

Leaded free-machining steel is used in production industry. However the use of the leaded free-machining steel is limited from an environmental problem. So sulfurized free-machining steel, not include lead, has been researched widely. In order to improve the machining performance of the sulfurized free-machining steel, it is necessary to find out the behavior of inclusion. The experiment was carried out to find out the mechanism of the surfurized inclusion on the machinability, using some kinds of materials which were changed the size of the inclusion. In orthogonal cutting, the deformation behaviors of the sulfurized inclusion in the work materials were observed in the vicinity of tool face. Cutting forces were also measured and finished surfaces were observed. Besides, low speed orthogonal cutting in Scanning Electron Microscope (SEM) which was mounted a small cutting device was carried out in order to observe the deformation behavior more microscopically. As a result, it is clear that some inclusions creates voids around them and some broke to several pieces depending on their conditions. Moreover, in order to investigate the formation and growth of BUE, a quick stop experiment was done during turning. As a result, it is clear that the larger inclusions can reduce the formation of BUE.

scholarly journals Ultraprecision orthogonal cutting mechanism of aluminum single crystals.

1995 ◽  
Vol 45 (1) ◽  
pp. 3-8
Author(s):  
Takao YAMAZAKI ◽  
Mototaro SATO ◽  
Yasuo SHIMIZU ◽  
Yunhai SUN ◽  
Yoshio TEZUKA
Keyword(s):  
Single Crystals ◽  
Orthogonal Cutting ◽  
Cutting Mechanism

Investigations on the Nature of Surface Finish and Its Variation With Cutting Speed

1964 ◽  
Vol 86 (2) ◽  
pp. 134-140 ◽  
Author(s):  
K. L. Chandiramani ◽  
N. H. Cook
Keyword(s):  
Surface Finish ◽  
Chip Formation ◽  
High Speed ◽  
Orthogonal Cutting ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Relative Importance ◽  
Cutting Mechanism ◽  
Low Speed

An attempt has been made to investigate the nature and cause of the variation of surface finish with cutting speed during orthogonal cutting operations. It is found that the variation of cutting speed alone is sufficient to give rise to the three different mechanisms of chip formation, conventionally known as discontinuous, continuous without “bue” (built-up-edge) and continuous with bue. The transition from low-speed, nonbue cutting to high-speed, bue cutting is found to greatly influence the surface finish and in fact the entire cutting mechanism. Photomicrographs of the cutting zones, the chips, and the profiles of the finished surfaces have been taken to observe these changes closely. Tests have also been carried out to determine the relative importance of cutting speed and cutting temperature in affecting the surface finish of the workpiece being machined.

The Simulation Analysis of Tool Orthogonal Rakes Affecting Metal Cutting

2011 ◽  
Vol 128-129 ◽  
pp. 1277-1280
Author(s):  
Xiao Hang Wan ◽  
Zhao Wei Dong ◽  
Shu Jun Li ◽  
Sheng Yong Liu
Keyword(s):  
Metal Cutting ◽  
Simulation Analysis ◽  
Orthogonal Cutting ◽  
Fem Analysis ◽  
Work Piece ◽  
Adaptive Meshing ◽  
Analysis Software ◽  
Cutting Mechanism ◽  
Technical Parameters ◽  
Cutting Model

Adopted the theory of elastic-plastic deformation, used the FEM analysis software, the reasonable two-dimension heat-mechanic coupling orthogonal cutting model is established in this paper, which uses the adaptive meshing criteria and simulates a typical work-piece chip breaking process. This paper simulates different tool orthogonal rakes how affect the cutting process, which is very significant in engineering. This paper supplies the theory foundation of optimizing the technical parameters and deeply studying the cutting mechanism.

Research on the carbon fibre-reinforced plastic (CFRP) cutting mechanism using macroscopic and microscopic numerical simulations

2016 ◽  
Vol 36 (8) ◽  
pp. 555-562 ◽  
Author(s):  
Fuji Wang ◽  
Xiaonan Wang ◽  
Rui Yang ◽  
Hanqing Gao ◽  
Youliang Su ◽  
...  
Keyword(s):  
Carbon Fibre ◽  
Fibre Orientation ◽  
Orthogonal Cutting ◽  
Microscopic Level ◽  
Macroscopic Model ◽  
Material Failure ◽  
Cutting Mechanism ◽  
Reinforced Plastic ◽  
Interface Cracking ◽  
Carbon Fibre Reinforced Plastic

The essence of cutting carbon fibre-reinforced plastic (CFRP) composites is a process of material failure and chip formation. The mechanism of cutting CFRPs can be explained from the perspective of local removal of material on the microscopic level. The morphology of the chips resulting from the cutting process can be determined from the perspective of the overall failure of the material on the macroscopic level. To reveal the mechanism of cutting CFRPs at both levels, a macroscopic model and a microscopic model are established in this study. Orthogonal cutting is applied in both of the models to illuminate the removal process. Combined with experimental observations, the results that obtained from both the macroscopic and microscopic level revealed the different mechanics of cutting CFRPs for different fibre orientations. For example, the forms of fracture that occur at 0° fibre orientation are primary interface cracking and fibre bending; the resulting chips have long shapes.

On Analysis of Orthogonal Cutting Mechanism with a Pb-Sn Alloy

1970 ◽  
Vol 13 (57) ◽  
pp. 454-461 ◽  
Author(s):  
Yoshiya FUJII ◽  
Kiyoshi TAGAMI ◽  
Masaru MATSUNO ◽  
Katsuhide MIURA
Keyword(s):  
Orthogonal Cutting ◽  
Cutting Mechanism

scholarly journals Experimental Investigation on the Cutting Mechanism of Oxygen Free Copper in Cutting Speeds Ranging from 1 m/s to 210 m/s

2013 ◽  
Vol 797 ◽  
pp. 208-213 ◽  
Author(s):  
Jun Shinozuka
Keyword(s):  
High Speed ◽  
Orthogonal Cutting ◽  
Cutting Speed ◽  
Shear Plane ◽  
Friction Angle ◽  
Temperature Fields ◽  
Cutting Mechanism ◽  
Machined Surface ◽  
High Speed Cutting

The orthogonal cutting tests of oxygen free copper with a cutting speed of from 1 m/s to 210 m/s were performed. The effect of the high-speed cutting on the improvement over the quality of the machined surface, which was evaluated by the thickness of the plastic flow layer and the surface roughness, was examined. By employing the simple shear plane model, the cutting mechanism was analyzed. The results were compared with the results for cutting of aluminum alloy obtained previously. For oxygen free copper, the resultant cutting force does not increase in high-speed cutting. However, the friction angle on the tool-chip interface rises clearly in high-speed cutting. This paper discusses the reason for the increase in the friction angle at the tool-chip interface by investigating the stress and temperature fields on the shear plane and the tool-chip interface.

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