scholarly journals Forming of silumins with the addition of carbide phase – the analysis of inserts temperatures during the cutting process

Mechanik ◽  
2017 ◽  
Vol 90 (2) ◽  
pp. 128-132
Author(s):  
Piotr Putyra ◽  
Lucyna Jaworska ◽  
Maciej Dyzia ◽  
Marcin Podsiadło
Keyword(s):  
High Speed ◽  
Cutting Tool ◽  
Polycrystalline Diamond ◽  
Cutting Parameters ◽  
Thermal Camera ◽  
Diamond Cutting ◽  
Ceramic Phase ◽  
Chip Formation Mechanism ◽  
The Stability ◽  
Diamond Cutting Tool

The stability of PCD inserts in the machining of cast composite materials containing 10 vol.% of ceramic phase is presented. Tests were carried out using a polycrystalline diamond cutting tool and the turning and milling center Mori Seiki NL2000SY. The VBB wear parameters of inserts according to the standard PN-ISO 3685:1996 were determinated. The influence of the cutting parameters (speed, feed rate, depth of the cut) on the temperature of PCD inserts was investigated. The analysis of chip formation mechanism during the processing at different cutting parameters was performed. The study was carried out using the FLIR A655 thermal camera and the high speed camera Phantom MIRO M310.

scholarly journals Development of a Tougher Grade of Polycrystalline Diamond Cutting Tool.

1999 ◽  
Vol 65 (8) ◽  
pp. 1092-1095
Author(s):  
Yasuyuki KANADA ◽  
Tomohiro FUKAYA ◽  
Junichi SHIRAISHI ◽  
Tetsuo NAKAI
Keyword(s):  
Cutting Tool ◽  
Polycrystalline Diamond ◽  
Diamond Cutting ◽  
Diamond Cutting Tool

UG and VERICUT-Based Processing of Special-Shaped Stone Samples

2011 ◽  
Vol 415-417 ◽  
pp. 924-928 ◽  
Author(s):  
Yu Hou Wu ◽  
Qiang Gao ◽  
De Hong Zhao
Keyword(s):  
Technological Parameter ◽  
Cutting Tool ◽  
Cutting Parameters ◽  
Actual Process ◽  
Diamond Cutting ◽  
Nc Code ◽  
Tool Paths ◽  
Horizontal Working ◽  
Diamond Cutting Tool

In order to verify the processability of a special-shaped stone machining center’s horizontal working portion, to process complex stone products. On the basis of analysis of the physical characteristics of diamond cutting tool and stone, create a model and use UG software to program, making this machine center’s dedicated post processor. Simulate NC code that is generated with VERICUT software, optimize the cutting parameters and analyse its surface quality. Avoid interference in the program, gouge, collisions and other phenomena by adjusting the tool axis’s attitude and the tool paths. Actual process verified the reliability of the program, technological parameter is rational, quality of the parts’ surface is well. Make precisely outline and tool wear is small, overcome the drawbacks of CNC system, get a higher efficiency.

Microtexture Generation Using Controlled Chatter Machining in Ultraprecision Diamond Turning

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Syed Adnan Ahmed ◽  
Jeong Hoon Ko ◽  
Sathyan Subbiah ◽  
Swee Hock Yeo
Keyword(s):  
Cutting Tool ◽  
Cutting Speed ◽  
Diamond Turning ◽  
Diamond Cutting ◽  
Machined Surface ◽  
Excited Vibration ◽  
Mass And Heat Transfer ◽  
Tool Shank ◽  
Diamond Cutting Tool

This paper describes a new method of microtexture generation in precision machining through self-excited vibrations of a diamond cutting tool. Conventionally, a cutting tool vibration or chatter is detrimental to the quality of the machined surface. In this study, an attempt is made to use the cutting tool's self-excited vibration during a cutting beneficially to generate microtextures. This approach is named as “controlled chatter machining (CCM).” Modal analysis is first performed to study the dynamic behavior of the cutting tool. Turning processes are then conducted by varying the tool holder length as a means to control vibration. The experimental results indicate that the self-excited diamond cutting tool can generate microtextures of various shapes, which depend on the cutting tool shank, cutting speed, feed, and cutting depth. The potential application of this proposed technique is to create microtextures in microchannels and microcavities to be used in mass and heat transfer applications.

scholarly journals Stability analysis for a single-point cutting tool deflection in turning operation

2019 ◽  
Vol 11 (6) ◽  
pp. 168781401985318
Author(s):  
Amon Gasagara ◽  
Wuyin Jin ◽  
Angelique Uwimbabazi
Keyword(s):  
Cutting Forces ◽  
High Speed ◽  
Cutting Tool ◽  
Single Point ◽  
Three Dimensional ◽  
High Speed Steel ◽  
Cutting Parameters ◽  
Depth Of Cut ◽  
Beam Model ◽  
Tool Deflection

In this article, a new model of regenerative vibrations due to the deflection of the cutting tool in turning is proposed. The previous study reported chatter as a result of cutting a wavy surface of the previous cut. The proposed model takes into account cutting forces as the main factor of tool deflection. A cantilever beam model is used to establish a numerical model of the tool deflection. Three-dimensional finite element method is used to estimate the tool permissible deflection under the action of the cutting load. To analyze the system dynamic behavior, 1-degree-of-freedom model is used. MATLAB is used to compute the system time series from the initial value using fourth-order Runge–Kutta numerical integration. A straight hard turning with minimal fluid application experiment is used to obtain cutting forces under stable and chatter conditions. A single-point cutting tool made from high-speed steel is used for cutting. Experiment results showed that for the cutting parameters above 0.1mm/rev feed and [Formula: see text]mm depth of cut, the system develops fluctuations and higher chatter vibration frequency. Dynamic model vibration results showed that the cutting tool deflection induces chatter vibrations which transit from periodic, quasi-periodic, and chaotic type.

Effect of texture shape on machining performance of textured diamond cutting tool

2019 ◽  
Vol 60 ◽  
pp. 21-27 ◽  
Author(s):  
Noritaka Kawasegi ◽  
Takumi Kawashima ◽  
Noboru Morita ◽  
Kazuhito Nishimura ◽  
Makoto Yamaguchi ◽  
...  
Keyword(s):  
Cutting Tool ◽  
Machining Performance ◽  
Diamond Cutting ◽  
Diamond Cutting Tool
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