The Research of Cutter-Location Optimization for Flank Milling Blades of Undevelopable Ruled Surfaces with Toroidal-End Cutter

2014 ◽  
Vol 800-801 ◽  
pp. 678-683
Author(s):  
J.C. Huang ◽  
Xian Li Liu ◽  
Ye Yang ◽  
S.Y. Tang ◽  
Y. Li ◽  
...  
Keyword(s):  
Numerical Control ◽  
Ruled Surfaces ◽  
Flank Milling ◽  
Scaling Factors ◽  
Numerical Control Machining ◽  
Location Optimization ◽  
Programming Error ◽  
Cutter Orientation ◽  
Deviation Measurement ◽  
Five Axis

To improve the efficiency and precision of five-axis numerical control machining for undevelopable ruled surfaces,a cutter-location optimization algorithm was proposed for flank milling of blades with a toroidal-end cutter. Firstly, it is established initial cutter-location of toroidal-end cutter by optimizing algorithm of three-point offset based on geometry features of toroidal-end cutter, and optimized cutter vector by introducing scaling factors. A new method which was based on dynamic sliding index calculating optimal cutter orientation vector was proposed. The method which applied deviation measurement algorithm computed overcut or undercut values of programming error in different scaling factors state. Finally, through the instance of machining verified the rationality of the method, and effectively reduces programming error.

scholarly journals Reducing the Risks during the Purchase of Five-Axis CNC Machining Centers Using AHP Method and Fuzzy Systems

2019 ◽  
Vol 11 (2) ◽  
pp. 315 ◽  
Author(s):  
Lucian-Ionel Cioca ◽  
Radu-Eugen Breaz ◽  
Sever-Gabriel Racz
Keyword(s):  
Fuzzy Systems ◽  
Setup Time ◽  
Traverse Speed ◽  
Cnc Machining ◽  
Numerical Control ◽  
Cnc Milling ◽  
Analytic Hierarchy ◽  
Numerical Control Machining ◽  
Five Axis ◽  
Hierarchy Process

Nowadays, companies are in the process of renewing their manufacturing lines by equipping them with modern five-axis CNC (computer numerical control) machining centers. The decision to select between different five-axis CNC machining centers, with similar technological capabilities is a difficult process, so the main goal of this work was to develop a method for assisting it. The proposed approach relies on seven technical criteria, four quantitative ones (traverse speed, thrust, spindle power, and spindle speed) which can be expressed by crisp numerical values, while the other three (flexibility, operation easiness, and setup time) are qualitative ones. The analytic hierarchy process (AHP) was used for ordering four variants of five-axis CNC milling machining centers. The qualitative criteria were processed using fuzzy systems to be expressed by crisp numerical values, suitable for AHP. Finally, the four variants of five-axis CNC milling machining centers were hierarchized and the best one was chosen. A sensitivity analysis was also unfolded to certify the robustness of the AHP.

Algorithm Based on 5-Axis NC Flank Milling of Arbitrary Surfaces

2010 ◽  
Vol 26-28 ◽  
pp. 265-268
Author(s):  
Hong Bo Wang ◽  
Guo Cheng Sheng
Keyword(s):  
Model Building ◽  
Good Method ◽  
Ruled Surface ◽  
Ruled Surfaces ◽  
Flank Milling ◽  
Machining Efficiency ◽  
Improve Quality ◽  
Nc Programming ◽  
Rough Milling ◽  
Five Axis

In order to improve quality and efficiency of the overall five-axis milling for arbitrary surface impellers. In rough milling, the arbitrary surface was replaced by fitted ruled surface, the flank milling was a good method to replace the point milling. In semi-finish milling, the primal surface was replaced by piecewise ruled surfaces, using step flank milling to gain the satisfaction in model’s nicety and machining efficiency. Then , algorithm of the paper is proved to be viable by Model building, NC programming and machining.

Graphic Design and Numerical Control Programming for Turbo-Rotor Manufacturing

1975 ◽  
Author(s):  
F. F. Willis
Keyword(s):  
Graphic Design ◽  
Lead Time ◽  
Numerical Control ◽  
Flank Milling ◽  
Data Set ◽  
Computer Data ◽  
Engineering Data ◽  
Short Lead Time ◽  
High Degree ◽  
Five Axis

Turbomachinery rotors may be engineered to be machined on 5-axis, numerically controlled machines using flank milling techniques. Engineering data can be converted to a graphic or computer data set which lends itself to unsophisticated numerically controlled programming for five-axis machines with short lead time production and a high degree of change flexibility.

Research on the NC Machining and Simulation for Spiral Bevel Gears of Half-Spread-Out Helix Modified Roll

2018 ◽  
Vol 939 ◽  
pp. 63-72
Author(s):  
Xi Ning Jiang ◽  
Yue Hai Sun ◽  
Xiao Hu Xie
Keyword(s):  
Cnc Machining ◽  
Numerical Control ◽  
Tooth Surface ◽  
Numerical Control Machining ◽  
Spiral Bevel Gears ◽  
Bevel Gears ◽  
Machining Center ◽  
New Type ◽  
Spiral Bevel ◽  
Five Axis

A new type of machining method called half-spread-out helix modified roll is used to carry out numerical control machining and simulation of spiral bevel gears in this paper. The transformation from traditional machine tool adjustment parameters into processing input parameters of five-axis CNC machining center was realized. The simulated gear model of this machining method is obtained, and the coordinates of its tooth surface points are compared with points coordinates of theoretical tooth surface which are generated according to the traditional machining method. From the comparison, the correctness of this numerical control machining model is verified.

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