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Best Articles 2011




Intelligent Data Acquisition and Information Process Technologies
and Their Applications. Part II.




Vol. 19, Special Issue, February 2013, pp.74-82



Forming Flaws Analysis of Lead Screw Cold Roll-Beating Based on Stress-Strain Evolution


He Wangyun, Li Yan, Yang Mingshun, Wang Ming

Faculty of Mechanical and Precision Instrument Engineering,
Xi’an University of Technology, Xi’an 710048, China

Tel.: +86-029-82312820, +86-029-8231654,

E-mail: hewy@xaut.edu.cn, jyxy-ly@xaut.edu.cn,
edu.cn, nocc@163.com


Received: 4 December 2012   /Accepted: 15 January 2013   /Published: 19 February 2013

Digital Sensors and Sensor Sysstems


Abstract: Cold roll beating is an advanced precision plastic forming technology. The principle of lead screw cold roll beating was briefly introduced and the dynamic model of single beating process of lead screw cold roll beating is established. Evolutions of the principal stress, hydrostatic pressure and the principal strain in the deformable area are studied. Positions of the defects are further defined and the reasons of these are analyzed according to the stress-strain evolution. And the corresponding measures are put forward to prevent surface defects.


Keywords: Lead screw, Cold roll-beating, Surface defects, Stress-strain.


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