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Mechanism of hydrojoining and approach to increase torsion strength of assembled camshafts

Research output: Contribution to journalArticlepeer-review

Abstract

Assembled hollow camshaft can be manufactured through hydrojoining process which has the advantages including joining multiple elements onto a tube in once loading, high joining strength, efficiency, and precision. The method of improving joining strength by using cams with noncircular hole was presented. Through numerical simulation and experiment, plastic deformation law of hydrojoining process was studied. The displacement of cam and tube, and the profile dimension change of cam during hydrojoining were obtained. The effect of hole shape of cams on joining strength was analyzed. The assembled hollow camshafts with casting iron cams used for a car engine and those with quenched steel cams for a truck engine were successfully manufactured using hydrojoining technology.

Original languageEnglish
Article number51015
JournalJournal of Manufacturing Science and Engineering
Volume137
Issue number5
DOIs
StatePublished - 1 Oct 2015
Externally publishedYes

Keywords

  • assembled camshaft
  • hollow camshaft
  • hydrojoining
  • joining by forming

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