Chapter 5: Rotary Forging of Axi-Symmetric Sintered Powder Preform

2020 ◽  
pp. 105-120
Keyword(s):  
Powder Preform ◽  
Rotary Forging ◽  
Sintered Powder

Effect of Porosity Content on the Weldability of Powder Metal Parts Produced by Friction Stir Welding

2007 ◽  
Vol 534-536 ◽  
pp. 789-792 ◽  
Author(s):  
Adem Kurt ◽  
Ilyas Uygur ◽  
Hakan Ates
Keyword(s):  
Friction Stir Welding ◽  
Powder Metal ◽  
Aluminum Powders ◽  
Friction Stir ◽  
Metal Parts ◽  
Constant Friction ◽  
Sintered Powder ◽  
Hardness Values ◽  
Welding Technique ◽  
Traveling Speed

Friction stir welding technique (FSW) has many advantages in terms of tool design, rotational speed and traveling speed, and can be adjusted in a precise manner. It enables heat input into the system to be controlled. In this study, Aluminum powders were compacted at 350,400 and 450 MPa pressure and sintered at 450 oC temperature for 30 minutes in Ar atmosphere. Sintered powder metal parts were joined to each other by FSW at the speed of 1800 rpm and traveling welding speed 200 mm/min under a constant friction force. The results show that the amount of porosity affects the weldability of powder metallurgy (P/M) parts. Furthermore, the porosity and microstructural evolution of the Aluminum also affected the hardness values of the tested materials.

Porosity effect on the electrical conductivity of sintered powder compacts

2008 ◽  
Vol 92 (2) ◽  
pp. 375-380 ◽  
Author(s):  
J.M. Montes ◽  
F.G. Cuevas ◽  
J. Cintas
Keyword(s):  
Electrical Conductivity ◽  
Sintered Powder ◽  
Porosity Effect ◽  
Powder Compacts

A study of extrusion of sintered powder metals

1995 ◽  
Vol 38 (1) ◽  
pp. 79-96 ◽  
Author(s):  
Zhengwen Yang ◽  
Horst Lippmann
Keyword(s):  
Sintered Powder ◽  
Powder Metals

scholarly journals Sintered powder cores of high Bs and low coreloss Fe84.3Si4B8P3Cu0.7 nano-crystalline alloy

AIP Advances ◽  
2013 ◽  
Vol 3 (6) ◽  
pp. 062118 ◽  
Author(s):  
Yan Zhang ◽  
Parmanand Sharma ◽  
Akihiro Makino
Keyword(s):  
Crystalline Alloy ◽  
Nano Crystalline ◽  
Sintered Powder
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