Results 111 to 120 of about 1,173,639 (141)

CNC Lathe Circular Interpolation Principle and Technological Parameters Research and Positive and Negative Arc Running Direction Analysis

open access: yesAdvanced Materials Research, 2011
Compiled nc programs, perfect quality parts processing of nc machining process, is compiling personnel, nc machining operation personnel most concern. This paper discusses correct understanding circular interpolation principle and processing technology analysis[1]; When the manual programming how correct establishment self-positioning presended car ...
Tian Biao Huang
exaly   +3 more sources

Efficient Circular Arc Interpolation Based on Active Tolerance Control

CAD Computer Aided Design, 2002
Abstract In this paper, we present an efficient sub-optimal algorithm for fitting smooth planar parametric curves by G1 arc splines. To fit a parametric curve by an arc spline within a prescribed tolerance, we first sample a set of points and tangents on the curve adaptively as well as with enough density, so that an interpolation biarc spline curve ...
Xunnian Yang
exaly   +2 more sources

Interpolation of Circular Arcs by Parametric Polynomials of Maximal Geometric Smoothness

Computer Aided Geometric Design, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Emil Žagar, Marjeta Knez
exaly   +4 more sources

Curved Surface Machining Through Circular Arc Interpolation

Computers in Industry, 1992
Abstract In curved surface machining it is customary to represent and to generate the surface as a sequence of short linearly interpolated moves. Experimental measurements of such stop-start motion shows that full cutting speed is achieved typically for only ten percent of the machining time: the remaining time is spent in accelerating ...
C Bradley
exaly   +2 more sources

Optimal Circular Arc Interpolation for NC Tool Path Generation in Curve Contour Manufacturing

CAD Computer Aided Design, 1997
Circular arc interpolation is essential in manufacturing of curve contours. However, the problems of how to determine the parameters of the circular arcs and how to minimize the number of arcs according to desired interpolation accuracy have not been completely solved. This paper presents a new algorithm of circular arc interpolation for planar curves.
Kai Cheng, Hua Qiu
exaly   +3 more sources

Smooth Circular Arc Interpolation for Planar Free Curves With Tolerance Control

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 1999
Several circular arc curve-fitting methods have been proposed to overcome the drawbacks caused by a series of short linear movements in planar curve contouring machining. Almost all the previous circular arc curve-fitting methods assume that overcut and undercut allowances are the same.
J-J Lee, J-Y Hascoët
exaly   +2 more sources

Three-Point Recursion Interpolation Theory and Algorithm of Space Circular Arcs in a CNC System

Computers in Industry, 1990
Abstract Conventional CNC circular interpolation algorithms are based on interpolating the next value according to the present value, regardless of the particular pulse increment method or data sampling method. In this paper, a new theory and algorithm for any space circular interpolation in a CNC system, called three-point recursion interpolation ...
Kaihuai Qin, Hongzan Bin
exaly   +2 more sources

Error Estimation of Circular Arc Interpolation Cutter Path Due to NC Servo Characteristic of Machining Center

2018 IEEE International Conference on Mechatronics and Automation (ICMA), 2018
From MC users' point of view, this paper proposes a practical approach to estimate trajectory error of circular arc interpolation cutter path produced by the NC servo characteristic for a target MC. For circular arc segment motion, a simple and convenient Ace/Dec procedure model only containing two parameters whose value is necessary to be decided by ...
Hua Qiu
exaly   +2 more sources

Arranging and Interpolating Sparse Unorganized Feature Points With Geodesic Circular Arc

IEEE Transactions on Image Processing, 2009
A novel method to reconstruct object boundaries with geodesic circular arc is proposed in this paper. Within this framework, an energy of circular arc spline is utilized to simultaneously arrange and interpolate each member in the set of sparse unorganized feature points from the desired boundaries.
Shengli Xie   +3 more
openaire   +3 more sources

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