Modeling and analysis of helical groove grinding in end mill machining

2014 ◽  
Vol 214 (12) ◽  
pp. 3067-3076 ◽  
Author(s):  
Guochao Li ◽  
Jie Sun ◽  
Jianfeng Li
Keyword(s):  
End Mill ◽  
Modeling And Analysis ◽  
Helical Groove ◽  
Mill Machining

Structural Design of Groove and Micro-Blade of the End Mill Based on Bionics

2016 ◽  
Vol 693 ◽  
pp. 1221-1227 ◽  
Author(s):  
Zhen Xi Jiang ◽  
Jie Sun ◽  
Jian Feng Li
Keyword(s):  
Structural Design ◽  
Heat Dissipation ◽  
Orthogonal Cutting ◽  
End Mill ◽  
Squeezing Effect ◽  
Serrated Chip ◽  
Machined Surface ◽  
Cubic Curve ◽  
Mill Machining ◽  
Cutting Model

The existing end mill is hard to balance the tool rigidity, heat dissipation and chip evacuation. In this study, the geometries of groove and micro-blade of the end mill machining titanium are optimized, through imitating the corn leaf’s tooth based on bionics. The peripheral cutting edge is composed of linear first rake, parabolic second rake and rear face. The chip-hold groove is composed of parabolic main groove and cubic curve vice groove. The cutting process of straight tooth and designed composite tooth are simulated by constructing the two-dimensional orthogonal cutting model using ABAQUS. The results show that: compared to the straight tooth, the designed composite tooth inhibits the generation of serrated chip, and the fluctuations of cutting force are smaller, the squeezing effect on the machined surface is weaker.

Research on the Mathematical Model of Helical Groove of the End Mill Based on the Grinding Wheel Attitude

2013 ◽  
Vol 589-590 ◽  
pp. 416-420 ◽  
Author(s):  
Xian Feng Zhao ◽  
Lin He ◽  
Hong Yan Shi
Keyword(s):  
Mathematical Model ◽  
Differential Geometry ◽  
Relative Motion ◽  
3D Model ◽  
Rake Angle ◽  
Grinding Wheel ◽  
End Mill ◽  
Helical Groove ◽  
The Mathematical Model ◽  
Main Factor

This paper presents the mathematical model of helical groove of the end mill according to the differential geometry and meshing principle based on the grinding wheel attitude. The profile of the helical groove can be precisely calculated using a given wheel attitude and the relative motion between the workpiece and the grinding wheel.The relation between the grinding wheel attitude and the rake angle can be obtained through adjusting the grinding wheel attitude angle.And the accurate 3D model of helical groove was generated in the SolidWorks.The research shows that the grinding wheel attitude is the main factor that affects the rake angle of end mill.There is a linear relationship between the rake angle and the grinding wheel attitude. The smooth and accurate 3D model of helical groove lay the foundation for studying the cutting performance and dynamic characteristics of end mill.

Design of a CAM System for End Mills Based on Solid Modeling

2011 ◽  
Vol 201-203 ◽  
pp. 841-845
Author(s):  
Zhan Hua You ◽  
Fei Tang ◽  
Shu Zhe Li ◽  
Xiao Feng Yue ◽  
Xiao Hao Wang
Keyword(s):  
Solid Modeling ◽  
Numerical Control ◽  
Design Parameters ◽  
End Mill ◽  
Nc Code ◽  
Inner Radius ◽  
End Mills ◽  
Grinding Machine ◽  
Five Axis ◽  
Mill Machining

To facilitate the manufacturing of an end mill, this paper presents a manufacturing model of a flat-end mill using a five-axis computer numerical control (CNC) grinding machine. Using input data of end mill geometry, wheels geometry, wheel setting and machine setting, the NC code for machining will be generated directly from a solid modeling then used as input to simulate the end mill machining in 3 Dimension before machining. The 3D simulation system of the end mill grinding is generated by VBA and AutoCAD2008. Machining simulation consists of a sequence of Boolean operations on difference between the tool and the grinding wheels through NC code. Then the major design parameters of a cutter, such as relief angle and inner radius, can be verified by interrogating the section profile of its solid model. The manufacturing model presented in this paper provides a practical and efficient method for developing CAM software for the manufacture of an end mill.

A Novel CNC Grinding Method for Relief Surface Based on a CAM System

2011 ◽  
Vol 295-297 ◽  
pp. 2521-2525 ◽  
Author(s):  
Xiao Feng Yue ◽  
Fei Tang ◽  
Shu Zhe Li ◽  
Zhan Hua You ◽  
Xiao Hao Wang
Keyword(s):  
Coordinate System ◽  
Numerical Control ◽  
Grinding Wheel ◽  
End Mill ◽  
Ball End Mill ◽  
Relief Surface ◽  
Cnc Grinding ◽  
Relief Angle ◽  
Five Axis ◽  
Mill Machining

A novel algorithm for the ball-end mill relief using a five-axis computer numerical control (CNC) grinding machine and the simulation of the ball-end mill based on a CAM system is presented in this paper. In this study, In order to obtain an accurate normal relief angle, which is one of the key factors affecting tool cutting performance, a tool coordinate system based on the required relief angle and the cutting edge was established. Then, by the proposed tool coordinate system, an algorithm to determine the position between the grinding wheel and the tool is proposed, and then the relevant formulations are deduced. The coordinates of grinding point when the step of relief surface is grinded are calculated.Using the input data of a ball-end mill geometry, wheels geometry, wheel setting and machine setting, the NC code for machining will be generated. Then the code will be used as input to simulate the ball-end mill machining in 3 Dimension before real machining. The algorithm of ball-end mill relief can be authenticated by the 3D simulation system.

A new approach to cutting state monitoring in end-mill machining

2005 ◽  
Vol 45 (7-8) ◽  
pp. 909-921 ◽  
Author(s):  
Dong-Yeul Song ◽  
Nobuo Otani ◽  
Takayuki Aoki ◽  
Yuichiro Kamakoshi ◽  
Yasuhiro Ohara ◽  
...  
Keyword(s):  
End Mill ◽  
State Monitoring ◽  
New Approach ◽  
Mill Machining

Study on Helical Groove and Circumferential Cutting Edge Machining Simulation of End Mill

2013 ◽  
Vol 589-590 ◽  
pp. 351-356
Author(s):  
Guo Chao Li ◽  
Jie Sun ◽  
Jian Feng Li ◽  
Qing Chun Xiong
Keyword(s):  
3D Model ◽  
Rake Angle ◽  
Cutting Edge ◽  
Machining Simulation ◽  
End Mill ◽  
Inner Radius ◽  
Helical Groove ◽  
End Mills ◽  
Wheel Profile ◽  
The Mathematical Model

A purely analytical method, based on the meshing theory, is presented to establish the exact helical groove and circumferential cutting edge model of end mills, for the solution of its low design precision and efficiency problems. Firstly, a coordinate system to represent the relative space position relations between grinding wheels and end mills is built and the mathematical model of the helical groove is precisely calculated with a given wheel profile and relative movements between the wheel and the workpiece. Then, the rake angle, inner radius and wheel positions of machining the clearance faces is computed. Finally, a 3D model of the end mill is generated by using OpenGL.

scholarly journals MTS supported programming method for solid carbide end mill machining process

Mechanik ◽  
2016 ◽  
pp. 468-469
Author(s):  
Jan Burek ◽  
Marcin Sałata ◽  
Jarosław Buk ◽  
Paweł Sułkowicz
Keyword(s):  
Programming Method ◽  
Machining Process ◽  
End Mill ◽  
Solid Carbide ◽  
Mill Machining

A Practical Algorithm for Ball-End Mill Using a Five-Axis CNC Grinding Machine

2012 ◽  
Vol 605-607 ◽  
pp. 1531-1536
Author(s):  
Xiao Jun Sun ◽  
Fei Tang ◽  
Xiao Hao Wang
Keyword(s):  
Mathematical Model ◽  
Cnc Machining ◽  
Grinding Wheel ◽  
Structural Parameter ◽  
End Mill ◽  
Ball End Mill ◽  
Local Coordinates ◽  
Five Axis ◽  
Mill Machining ◽  
The Mathematical Model

A novel ball-end mill manufacturing algorithm of 5-Axis CNC Machining grinder and the simulation test of the algorithm based on a CAD system are presented in this paper. In order to obtain an accurate algorithm of a ball end mill machining, a mathematical model is needed so that the shape of the mill can be parameterized. Therefore, the mathematical model can be adjusted based on that model. Each of the processing parts has its own position in the local coordinates system. Then, with the coordinates determined by the mathematical model, the partial coordinate and the relative movement between the grinding wheel and the barstock in the local coordinates system can be calculated. So that the 5-Axis manufacturing coordinate can be confirmed by the partial coordinate and the structural parameter. If we input these data and make the 3D-CAD simulation before the machinery manufacture, the algorithm can be tested effectively.

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