Title :
Notice of Retraction
Offset algorithm for non-circular contour with point cloud data
Author :
Manchao Zhang ; Zhenqiang Yao ; Jun Hu
Author_Institution :
Sch. of Mech. Eng., Shanghai Jiaotong Univ., Shanghai, China
Abstract :
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Cam is a typical contour on non-circular grinding. The data of cam profiles could be illustrated based on taking the lift of a flat follower or roller as a function of cam rotation angle and converting it into the polar coordinates of the cam profile. According to working principle of camshaft grinding machine, the coordinates of cam profile and grinder can be calculated. This paper analyzes the conventional tool-offset methods and B-spline tool-offset method. A new algorithm for cam curve offsetting is proposed by using coordinates of cam profile and grinder. The method is applicable to outer cams. Experimental results showed that can be successfully machined.
Keywords :
camshafts; computerised numerical control; grinding; mechanical engineering computing; production engineering computing; splines (mechanical components); B-spline tool offset method; cam curve offsetting; cam profile; cam rotation angle; camshaft grinding machine; flat follower; noncircular contour; noncircular grinding; offset algorithm; point cloud data; polar coordinates; working principle; Computer numerical control; Curve fitting; Machining; Mathematical model; Spline; Wheels; cam; non-circular grinding; normal vector; offset; tangential Point tracing grinding;
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
DOI :
10.1109/ICCASM.2010.5623066
