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Abstract: The traditional machining method on fabricating spur gears
has much defects compared to the precision forging process. The current
upset-extrusion process is difficult to utilize in industry due to its
overlarge deformation load. The performing divided flow region and final
forging process is proposed. A set of experimental tools with much
combination of inserts is designed and used to perform the new process
and the upset-extrusion process using tube billets and cylindrical
billets, respectively. The experimental results show that the new
process can not only achieve the spur gears with full teeth and smooth
end surface but also reduce deformation load more than 37%. The new
process has potential for future industry application.
Key words: Spur gear Precision forging Experimental study
CLC No: TH311
山东省优秀中青年科学家科研奖励基金(鲁科计字[2000]
410)和山东省自然科学基金(Z2000A01)资助项目.
Received 20040130, received in revised form 20020040430
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