Feed-Rate Optimization of Ball End Milling Considering Local Shape Features

CIRP Annals ◽  
1997 ◽  
Vol 46 (1) ◽  
pp. 433-436 ◽  
Author(s):  
C.N. Chu ◽  
S.Y. Kim ◽  
J.M. Lee ◽  
B.H. Kim
Keyword(s):  
Feed Rate ◽  
End Milling ◽  
Shape Features ◽  
Local Shape ◽  
Ball End Milling ◽  
Rate Optimization ◽  
Feed Rate Optimization

Finding Cutter Engagement for Ball End Milling of Tessellated Free-Form Surfaces

2005 ◽  
Author(s):  
Zhiyang Yao
Keyword(s):  
Surface Finish ◽  
Feed Rate ◽  
End Milling ◽  
Geometric Algorithms ◽  
Free Form ◽  
Ball End Milling ◽  
Final Surface ◽  
End Mills ◽  
Free Form Surfaces ◽  
Final Surface Finish

In fabricating free-form surfaces, ball end mills are mainly used to reach the final surface finish requirements. In the milling processes, cutter engagement value measures what portion of the cutter is involved in machining at a given instant of time. This paper presents geometric algorithms for estimating cutter engagement values for ball end milling processes of tessellated free-form surfaces. The cutter engagement value calculated here can be used later on in generating efficient cutter paths, as well as performing adaptive feed rate controls.

Method for Feed-Rate Optimization Based on S Curve Acceleration and Deceleration Control of Piecewise Tool Path

2012 ◽  
Vol 542-543 ◽  
pp. 551-554
Author(s):  
Xiao Bing Chen ◽  
Wen He Liao
Keyword(s):  
Feed Rate ◽  
Tool Path ◽  
Complex Surface ◽  
Experimental Result ◽  
Threshold Method ◽  
Lower Efficiency ◽  
Acceleration And Deceleration ◽  
S Curve ◽  
Rate Optimization ◽  
Feed Rate Optimization

Aiming at the problem of lower efficiency of complex surface machining with constant feed-rate, a method for feed-rate optimization based on S curve acceleration and deceleration control of piecewise tool path is researched. With constraints of kinematic characters of machine tool and geometric characters of tool path, tool path segments are obtained by curvature threshold method, and feed-rates are planned in these segments, then feed-rate transition of adjacent segments is processed by the method of S curve acceleration and deceleration control. Experimental result indicates that the proposed method is feasible and effective.

Simulation Study on Feed Rate Optimization Technique Based on Generalized Predictive Control

2013 ◽  
Vol 572 ◽  
pp. 555-558
Author(s):  
Xia Li ◽  
Hong Bin Liang ◽  
Shu Zhi Zhang
Keyword(s):  
Predictive Control ◽  
Feed Rate ◽  
Optimization Technique ◽  
Adaptive Controller ◽  
Open Architecture ◽  
Generalized Predictive Control ◽  
Software Modules ◽  
Rate Optimization ◽  
Cnc Controller ◽  
Feed Rate Optimization

Optimization is an important way to improve the machining quality, efficiency, security and safety. In traditional way, feed rate is specified off-line in CAM system by process planner, which leads to the low machining efficiency. In the paper feed rate optimization technique based on generalized predictive control is researched. The open architecture is adopted to develop an adaptive controller, where the feed rate can be real-time adjusted in CNC system according to the measured cutting force. An open CNC controller with the function of feed rate optimization is implemented, which consists of a series of software modules. Simulation experiment has been finished to prove the proposed method.

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