Notice of Retraction: Offset algorithm for non-circular contour with point cloud data

Zhang, Manchao; Yao, Zhenqiang; Hu, Jun

doi:10.1109/iccasm.2010.5623066

2010 International Conference on Computer Application and System Modeling (ICCASM 2010) 2010

DOI: 10.1109/iccasm.2010.5623066

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Notice of Retraction: Offset algorithm for non-circular contour with point cloud data

Manchao Zhang

Zhenqiang Yao

Jun Hu

Abstract: 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 propos… Show more

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2018

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Analysis and Experiment of Non - circular Layered Grinding Based on Grinding Arc Length

Li¹,

Han²,

Peng³

et al. 2018

Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)

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Abstract.. Aiming at the problem of machining quality caused by the sharp fluctuation of grinding force during the grinding process of non -circular parts, a new method for determining the transition profile based on the presetting of the grinding arc length is proposed. It is recommend to use the target profile as the reference point to reverse the normal grinding margin according to the grinding arc length by layer ,so that the grinding rate can be stable and controllable. And the calculation model of non -circular stratified method is given too. The experiments with constant grinding arc length show that the method can improve the grinding quality of non -circular grinding process effectively. PrefaceThe cut-point tracking method is often used in grinding non-circular parts such as eccentric shafts, camshafts and engine combustion chambers [1][2] . Different from the grinding circle, eccentric shaft and other non-circular profile need to grind for several layers to be processed into the target profile. And the grinding point position, processing margin, grinding rate, tool wear and other processing parameters are under constantly changing which result in complex and non-uniform processing.Some studies according to the specific characteristics of the parts were processed, respectively, in the kinematics and dynamics and other aspects [3][4][5][6][7] . Since this kind of research is directly related to the manufacturer's core technology and commercial interests, The design method of the key stratified grinding transition curve in the grinding process has not been reported.Based on the non-circular grinding forming mechanism, the hierarchical transition profile planning from blank to target profile is studied on the basis of analyzing the grinding process. Aiming at the optimal design of process parameters such as cutting depth, grinding rate and so on, a generalized bias design method of transition series is proposed. Research conclusions can be extended to different forms of non-circular parts grinding. Non-circular contour forming mechanismIn the non-circular part grinding process, assuming that the non-circular parts are fixed, the grinding process of the target contour can be understood as the variable diameter rotation of the grinding wheel around the non-circular parts, and The target contour is formed by the wheel motion envelope.

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Analysis and Experiment of Non - circular Layered Grinding Based on Grinding Arc Length

Li¹,

Han²,

Peng³

et al. 2018

Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)

View full text Add to dashboard Cite

show abstract

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Notice of Retraction: Offset algorithm for non-circular contour with point cloud data

Cited by 1 publication

References 2 publications

Analysis and Experiment of Non - circular Layered Grinding Based on Grinding Arc Length

Analysis and Experiment of Non - circular Layered Grinding Based on Grinding Arc Length

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