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ZHANG Dawei
LI Yongtang
FU Jianhua
School of Materials Science and
Engineering,
Taiyuan University of Science
& Technology,
Taiyuan 030024, China
ZHENG Quangang
Qingdao Cool Rolling Technological
Research and Development Center,
Qingdao 266100, China
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MECHANICS ANALYSIS ON PRECISE FORMING
PROCESS OF EXTERNAL SPLINE COLD ROLLING*
Abstract: According to the suitable
assumption, the deformation process of external spline cold
rolling is analyzed. By the graphing method, the slip-line field
of plastically deforming area in process of external spline cold
rolling is set up. Different friction-conditions are used in
different contact areas in order to realistically reflect the
actual situation. The unit average pressure on contact surface
of the rolling process is solved according to the stress filed
theory of slip-line. And the formulae of the rolling-force and
rolling-moment are established. The theoretical result is well
consistent with the finite element analysis. A theoretical basis
is provided for the precise forming process of spline cold
rolling and the production of external splined shafts.
Key words: External
spline Cold rolling Slip-line Unit average pressure
Rolling-force |