Research and Development of Four Axis Linkage Grinding Simulation System of Ball-Nose End Mill

2010 ◽  
Vol 443 ◽  
pp. 314-317
Author(s):  
Lin He ◽  
Xian Feng Zhao ◽  
Hong Yan Shi ◽  
Jun Wang
Keyword(s):  
Simulation System ◽  
Rake Face ◽  
End Mill ◽  
Ball End Mill ◽  
Nc Programming ◽  
Solid Models ◽  
Flank Face ◽  
The Mathematical Model ◽  
Face Grinding ◽  
Grinding Simulation

The four axis linkage grinding simulation system of ball-nose end mill has be developed based on the mathematical model of four axis linkage grinding through establishing ball-nose end mill's parametrical database, constructing ball-nose end mill’s and grinding wheel's solid models in Solidworks, simulating the grinding processes of the rake face and flank face of ball-nose end mill based on Boolean operation, and automatic NC programming of rake face and flank face grinding. The results show the grinding simulation system can be used to manufacture ball end mill.

Effect of Grinding Wheel Diameter Change on Geometrical Parameters of Ball-Nose End Mill

2010 ◽  
Vol 97-101 ◽  
pp. 4527-4529 ◽  
Author(s):  
Lin He ◽  
L.M. Sun ◽  
Xian Feng Zhao ◽  
Jun Wang
Keyword(s):  
Visual Basic ◽  
Rake Angle ◽  
Simulation System ◽  
Grinding Wheel ◽  
Geometrical Parameters ◽  
Rake Face ◽  
End Mill ◽  
Visual Basic For Applications ◽  
Grinding Simulation ◽  
Diameter Change

The grinding simulation system of ball-nose end mill rake face is developed based on the four axis linkage mathematical model using Solidworks and Visual Basic for Applications (VBA). Effects of grinding wheel diameter change due to wear on geometrical parameters of ball-nose end mill, such as ball-nose rake angle, column rake angle and edge strip width are investigated.

Five-Axis CNC Tool Grinding: Part I—Rake Face Grinding

2011 ◽  
Author(s):  
Mahmoud M. Rababah ◽  
Zezhong C. Chen
Keyword(s):  
Rake Angle ◽  
Grinding Process ◽  
Rake Face ◽  
End Mill ◽  
Grinding Wheels ◽  
Robust Algorithm ◽  
Geometric Representations ◽  
Five Axis ◽  
Face Grinding ◽  
Tool Grinding

Grinding the helical surfaces in end-mill cutters using two-axis CNC machines is well investigated in literature. However, the grinding wheels do not have explicit geometric representations and the produced helical angles differ from the designed values. Moreover, to the best knowledge of the authors, no reliable and robust algorithm exists to grind generic shape cutters with constant normal rake angles. Thus, the first part of this work introduces a five-axis grinding process that keeps the normal rake angle constant along the rake face. The parameters that affect the shape of the tool flutes are also analyzed and studied in this part. These parameters are then optimized in the second part to obtain optimum wheel shapes grinding the tool flutes along optimum paths. Overall, the grinding process proposed grinds the tool flutes with close matching to the designed ones and replaces the complex wheel shapes commonly used by simple prismatic ones.

scholarly journals Research on the Cutting Principle and Tool Design of Gear Skiving Based on the Theory of Conjugate Surface

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Peng Wang ◽  
Jingcai Li ◽  
Lin Han
Keyword(s):  
Mathematical Model ◽  
Design Principle ◽  
Design Method ◽  
Tool Design ◽  
Theoretical Research ◽  
Machining Accuracy ◽  
Rake Face ◽  
Key Factors ◽  
Flank Face ◽  
The Mathematical Model

Tool design is one of the key factors that restrict the development of gear skiving technology since the design principle does not correspond to the cutting principle. The existing skiving tool cannot achieve ideal machining accuracy and reasonable cutting angles. In view of this, some research has been done in this paper. Firstly, the skiving principle is investigated essentially according to the skiving motions. Then, the principle of tool design is analyzed based on the theory of conjugate surface, and a new tool design method is proposed to match the skiving principle. For this, all the skiving patterns for various kinds of workpieces are enumerated and summarized to abstract a normalized skiving model. Based on this, the mathematical model of the conjugate surface is then derived to lay the foundation for tool design. Then, the design methods of cutting edge, rake face, and flank face are proposed. An example is presented at last, and the cutting simulation is conducted. The result proves that the proposed methods are correct and valid. The theoretical research in this paper could promote the improvement of skiving tools.

The Secondary Development of Milling Forces Simulation System of Ball End Mill Based on UG

2013 ◽  
Vol 820 ◽  
pp. 157-161
Author(s):  
Yun Peng Ding ◽  
Xian Li Liu ◽  
X.Y. Zhou ◽  
Hui Nan Shi ◽  
Jiao Li ◽  
...  
Keyword(s):  
Simulation System ◽  
Secondary Development ◽  
End Mill ◽  
Ball End Mill ◽  
Programming Technique ◽  
Seamless Integration ◽  
Surface Machining ◽  
Mixed Programming ◽  
Physics Simulation ◽  
Milling Forces

Milling forces simulation is a critical part in the NC processing simulation system, unstable milling forces not only affect tool life, but also can reduce the surface machining quality. Based on the existing milling forces model of ball end mill, this paper establishes a milling forces simulation system which makes seamless integration of geometric simulation and physics simulation come true on UG platform with Matlab and VC++ mixed programming technique.

Design and fabrication of a new micro ball-end mill with conical flank face

2018 ◽  
Vol 97 (1-4) ◽  
pp. 39-50 ◽  
Author(s):  
Zhiqiang Liang ◽  
Shidi Li ◽  
Tianfeng Zhou ◽  
Peng Gao ◽  
Dongdong Zhang ◽  
...  
Keyword(s):  
End Mill ◽  
Ball End Mill ◽  
Flank Face

scholarly journals Peculiarities of the Grinding Process of a Gear Hob Helical Rake Face

2021 ◽  
Vol 13 (1) ◽  
pp. 39-51
Author(s):  
Norbert Hodgyai ◽  
Márton Máté ◽  
Ferenc Tolvaly-Roşca ◽  
Mircea Viorel Drăgoi
Keyword(s):  
Mathematical Model ◽  
Grinding Process ◽  
Rake Face ◽  
Cad Modeling ◽  
The Mathematical Model ◽  
Face Grinding

Abstract This paper presents a study regarding the gear hob’s rake face grinding possibilities and its consequences. A simple theoretical lined surface is considered. The mathematical model of the reciprocate meshing of surfaces was applied. It was proven that the proposed form of the rake face cannot be obtained because an undercut of inacceptable extent occurs. It is also proven and sustained by CAD modeling that using a simplified, flat grinding disk, the undercut is avoided, but the phenomenon of transection appears.

A New Approach to Five-Axis CNC Flute Grinding of Solid End-Mills

2012 ◽  
Vol 723 ◽  
pp. 421-432 ◽  
Author(s):  
Mahmoud M. Rababah ◽  
Ze Zhong C. Chen ◽  
Li Ming Wang
Keyword(s):  
Cutting Tools ◽  
Grinding Wheel ◽  
Rake Face ◽  
Ball End Mill ◽  
New Approach ◽  
Minor Radius ◽  
End Mills ◽  
Tool Strength ◽  
Five Axis ◽  
Face Grinding

The traditional cutting tools grinding reveals inexact tool flutes that altered the tool strength and affect the chip evacuation capabilities. Moreover, the normal rake angles are neither exact nor varying smoothly on the rake face along the cutting edge. Adopting the rake face grinding process, the wheel shape and path are optimized using GODLIKE scheme in order to grind the tool flutes with exact helical and normal rake angles while keeping close matching to the designed flutes. A tapered ball-end mill is considered in this study due to its extensive role in five-axis sculpture surfaces machining. With this approach proposed, a simple grinding wheel replaces the complex wheels commonly used, and the deviation between the designed and the generated flutes reveals less than 4 % of the tool minor radius. Beside all, a relationship between the radial and the normal rake angles are established.

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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