The fabrication of parts with longitudinal grooves by methods of forcing tool working elements into preform

被引：0

作者：

Dorofeev, Yu.G. ^{[1
]}

Dorofeev, V.Yu. ^{[1
]}

Mirgorodskij, I.V. ^{[1
]}

Kosobokov, T.A. ^{[1
]}

机构：

[1] Novocherkasskij Gosudarstvennyj, Tekhnicheskij Univ, Novocherkassk, Russia

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 1998年 / 19卷 / 06期

关键词：

Gears - Grain size and shape - Plastic deformation - Porosity - Preforming - Pressing (forming);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A hot forming method is developed for PM parts with longitudinal grooves on the base of forcing working element of pressing tool into a body of heated porous preform. Undamaged gear-wheels with a module of 2.5 mm are fabricated. The effect of preform starting porosity, its shape, preliminary plastic deformation ratio and geometric parameters on the grain-oriented zone of part bulge is shown. The maximum of the latter takes place at starting porosity 15% without preliminary reduction and at 20-25% with preliminary reduction that gives positive effect on mechanical and operating properties of parts.

引用

页码：113 / 117

共 2 条

[1] Production of parts with lengthwise grooves by pressing the working elements of a tool into the body of a compact
Yu. G. Dorofeev
V. Yu. Dorofeev
I. V. Mirgorodskii
I. A. Kosobokov
Powder Metallurgy and Metal Ceramics, 1998, 37 : 443 - 447
[2] Production of parts with lengthwise grooves by pressing the working elements of a tool into the body of a compact
Dorofeev, YG
Dorofeev, VY
Mirgorodskii, IV
Kosobokov, IA
POWDER METALLURGY AND METAL CERAMICS, 1998, 37 (7-8) : 443 - 447

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