Control of the powder rolling process

1983 ◽  
Vol 22 (3) ◽  
pp. 163-165
Author(s):  
E. B. Lozhechnikov
Keyword(s):  
Rolling Process ◽  
Powder Rolling

Densification Behavior of Titanium in Direct Powder Rolling Process

2012 ◽  
Vol 36 (10) ◽  
pp. 1255-1260 ◽  
Author(s):  
Dong-Hwan Kang ◽  
Jae-Keun Hong ◽  
Nho-Kwang Park ◽  
Tae-Won Kim
Keyword(s):  
Rolling Process ◽  
Powder Rolling ◽  
Densification Behavior

Mechanical Properties of PM CNT-Dispersed Cu Composite

2017 ◽  
Vol 737 ◽  
pp. 320-325 ◽  
Author(s):  
Hisashi Imai ◽  
Katsuyoshi Kondoh ◽  
Junko Umeda
Keyword(s):  
Mechanical Properties ◽  
Surface Area ◽  
Composite Powder ◽  
Pure Copper ◽  
Surfactant Solution ◽  
Rolling Process ◽  
Powder Rolling ◽  
Zwitterionic Surfactant ◽  
Powder Surface ◽  
Strengthening Factor

Microstructural and mechanical properties of powder metallurgy (PM) with carbon nanotube (CNTs) dispersed copper (Cu) composites were investigated in detail. Pure copper powder was coated with un-bundled CNTs by using the zwitterionic surfactant solution containing CNTs. The powder rolling process was applied to increase the powder surface area to be coated with CNTs. The total rolling reduction of Cu-CNT composite powder by 5 steps rolling was about 75%. With increasing the number of rolling steps, the content of CNTs coated on the Cu powder surface increased because of the increment of the flat surface area of flaky Cu rolled powder. As a result, the CNT content was 0.67mass% after 5 steps powder rolling. It was about twice as that of as-coated Cu-CNT composite powder without rolling. The grain size of PM extruded Cu-CNT composite was about one fifth of that of the extruded monolithic Cu material without CNT. Yield stress of the extruded Cu-CNT composite via the rolling process was 192 MPa, which is about twice that of the extruded monolithic Cu material (88 MPa). CNTs distributed at primary particle boundaries were effective to prevent the grain coarsening by their pinning effects, and this grain refinement was the main strengthening factor of the Cu-CNT composite via rolling process.

A new lead alloy current-collector manufactured by a powder rolling process and its corrosion behavior under lead-acid battery conditions

2008 ◽  
Vol 185 (1) ◽  
pp. 559-565 ◽  
Author(s):  
Masanori Sakai ◽  
Yasuo Kondo ◽  
Satoshi Minoura ◽  
Takeo Sakamoto ◽  
Tokiyoshi Hirasawa
Keyword(s):  
Corrosion Behavior ◽  
Current Collector ◽  
Rolling Process ◽  
Powder Rolling ◽  
Lead Alloy ◽  
Lead Acid Battery ◽  
Lead Acid

The Direct Powder-Rolling Process for Producing Thin Metal Strip

JOM ◽  
1983 ◽  
Vol 35 (1) ◽  
pp. 34-39 ◽  
Author(s):  
David H. Ro ◽  
Milton W. Toaz ◽  
Vladimir S. Moxson
Keyword(s):  
Rolling Process ◽  
Metal Strip ◽  
Thin Metal ◽  
Powder Rolling

Mechanical and Electrical Properties of Rapidly Solidified Cu-Zr-Ag Alloy Fabricated by Powder Rolling Process

2011 ◽  
Vol 1300 ◽  
Author(s):  
Satoru Miyakawa ◽  
Motonori Nishida ◽  
Nobuyuki Nishiyama ◽  
Haruko Miura ◽  
Akihisa Inoue
Keyword(s):  
Alloy Powder ◽  
Rolling Process ◽  
Alloy Sheet ◽  
Powder Rolling ◽  
Gas Atomization ◽  
Sequential Process ◽  
Argon Gas ◽  
Mechanical And Electrical Properties ◽  
Electric Connector ◽  
Rapidly Solidified

ABSTRACTA non-equilibrium Cu-Zr-Ag alloy was designed for the development of an alternative electric connector to Cu-Be alloys. This work aims at producing a Cu-Zr-Ag sheet using a hot-powder-rolling (HPR) process. The sheets were produced by a sequential process of HPR, pre-annealing, and cold rolling, using Cu93.5Zr5.5Ag1 (at.%) alloy powder produced by an argon gas atomization method. The Cu93.5Zr5.5Ag1 alloy sheet has a tensile strength of 1188 MPa and a conductivity of 33.2% IACS, which are similar values to those of Cu-Be alloys. In this paper, we optimize the conditions of the HPR process and reveal the correlation between the microstructure and properties of the Cu-Zr-Ag sheet produced by the HPR process. In addition, we discuss the alloy’s applicability for use as a connecter material.

The angle parameters of the metal-powder rolling process

1965 ◽  
Vol 4 (9) ◽  
pp. 722-726 ◽  
Author(s):  
G. A. Vinogradov ◽  
V. P. Katashinskii
Keyword(s):  
Metal Powder ◽  
Rolling Process ◽  
Powder Rolling ◽  
Metal Powder Rolling

Experimental and Numerical Modeling for Powder Rolling

2012 ◽  
Vol 159 ◽  
pp. 115-121
Author(s):  
Zhen Xing Zheng
Keyword(s):  
Numerical Simulation ◽  
Visual Analysis ◽  
Rolling Force ◽  
Geometrical Nonlinearity ◽  
Rolling Process ◽  
Powder Rolling ◽  
Factors Affecting ◽  
Practical Applications ◽  
Process Factors ◽  
The Stability

There are multiple nonlinearities during the course of powder rolling and there is a difficulty for constructing its mechanical model and keeping the stability during the numerical calculation process. In addition, mechanical parameters determined by means of numerical simulation of rolling process are great significance both in theory and practical applications for the optimization of the process parameters and the design and manufacture of rolling equipment. Considering Material and Geometrical Nonlinearity during powder rolling, a constitutive model aiming to the powder rolling is constructed based on the Updated Lagrange (U.L.) formulation by which the basic theory of numerical simulation is deduced. The reasons are analyzed based on the experiments of powder rolling which led to the error during the numerical simulation and the effect of the different factors on powder rolling are analyzed. It is shown that the result of simulation is less than that of experiment and the whole result is dependable. The effect of various process factors is analyzed by the simulation of the rolling process and based on visual analysis of the simulation result, the primary and secondary factors affecting the relative density and the rolling force are obtained.

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