A new method for boring of non-circular holes

De-jin, HU; Zhang, Kai

doi:10.1007/s11465-006-0058-3

Cited by 4 publications

(7 citation statements)

References 8 publications

(3 reference statements)

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“…Changes caused by the material properties are mainly reflected in: (1) changes in the tightness between the grains of the material lead to changes in mechanical properties; (2) twist between grain boundary interfaces of the material leads to changes in mechanical properties; (3) stress formed from pre-strain. Section (1), ( 2) can be achieved by shear and zoom in affine transformation.…”

Section: Applied Mechanics and Materials Vol 610mentioning

confidence: 99%

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Research on the Material Model of Cold Deformation Strengthened Steel

Zhang

Luo

2014

AMM

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Section: Applied Mechanics and Materials Vol 610mentioning

confidence: 99%

“…Wherein, the shot processing and extreme pressure (cold drawing) can make the strength of the material improve. However, this also makes the carrying capacity of the material changes [1][2][3]. In this case, in engineering design, the design results will lead to considerable error, and even lead to erroneous results or conclusions.…”

Section: Introductionmentioning

confidence: 99%

Research on the Material Model of Cold Deformation Strengthened Steel

Zhang

Luo

2014

AMM

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“…3,4 The experiment indicates that the machining precision of elliptical hole with that method is at micron level. Zhang and Hu 5 use electromagnetic actuation device for boring elliptical holes. The boring feeding is controlled by electricity in the actuation device.…”

Section: Introductionmentioning

confidence: 99%

Open-loop control of elliptical shaft center orbit

Peng

Yang

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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In order to realize the machining of elliptical holes, the article researches control simulation of shaft center movement orbit using Eulerian method. A new hydrostatic bearing and a hydraulic control system are proposed, and quantitative relation between the expected shaft center coordinates and spool displacement of electro-hydraulic servo valve is studied. With the Eulerian method, open-loop control orbit of shaft center is simulated. And the simulation results indicate that open-loop control method not only controls shaft center movement to form ellipse orbits but also has strong robustness against dynamic disturbing force or instantaneous static disturbing force. This article lays theoretical basis for machining of elliptical holes.

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“…The key to the precision machining of elliptic-shaped holes lies in the precision micro-displacement radical feed mechanism. 4 Zhang and colleagues [5][6][7][8] presented a revolving electromagnetic actuation mechanism composed of an electromagnetic stator and an electromagnetic rotor. The rotor's main component is a flexure-hinged-based flexible body.…”

Section: Introductionmentioning

confidence: 99%

Study on movement forming methods for the machining of elliptic-shaped holes

Peng

Ding

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part B:

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The movement forming methods for the machining of elliptic-shaped holes are presented. These methods can make the tool nose orbit, which is the synthesis of revolution of the hydrostatic shaft center around bearing center and rotation of the tool nose around shaft center, become an ellipse. Thus, the machining of elliptical holes can be achieved. Necessary conditions and sufficient conditions for forming elliptic tool nose orbit, under the condition that multiple shaft center orbits and the tool nose's rotation orbit take synchronous forward synthesis and synchronous backward synthesis, are studied. The influence of initial phase angle of the tool nose on the formation of elliptic tool nose orbit has also been investigated. Characteristics and control equations of elliptic tool nose orbit under the conditions of multiple shaft center orbits and different initial phase angles of the tool nose are given. These studies will lay a theoretical foundation for the realization of the movement forming methods. Traditional machining methods for elliptic-shaped holes require auxiliary feed mechanism installed on the machine tool, and machining efficiency is limited by the frequency response characteristic of the servo bar. The forming methods presented in this article can overcome these shortcomings and provide a new approach for precision machining of elliptic-shaped holes.

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A new method for boring of non-circular holes

Cited by 4 publications

References 8 publications

Research on the Material Model of Cold Deformation Strengthened Steel

Research on the Material Model of Cold Deformation Strengthened Steel

Open-loop control of elliptical shaft center orbit

Study on movement forming methods for the machining of elliptic-shaped holes

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