scholarly journals Characteristic local elongation of high Fe-containing aluminum alloys produced by a deformation–semisolid-forming process

2018 ◽  
Vol 68 (2) ◽  
pp. 77-78 ◽  
Author(s):  
Tatsuo Sato ◽  
Tomoki Tani ◽  
Takuro Aoki
Keyword(s):  
Aluminum Alloys ◽  
Forming Process ◽  
Semisolid Forming

Preparation of Semisolid A356 Alloy by a Cooling Slope Processing

2011 ◽  
Vol 675-677 ◽  
pp. 767-770 ◽  
Author(s):  
Jun Xu ◽  
Tong Min Wang ◽  
Zong Ning Chen ◽  
Jing Zhu ◽  
Zhi Qiang Cao ◽  
...  
Keyword(s):  
A356 Alloy ◽  
A356 Aluminum Alloy ◽  
Forming Process ◽  
Pouring Temperature ◽  
Cooling Slope ◽  
Optimum Parameters ◽  
Grain Structures ◽  
Semisolid Forming ◽  
Size And Morphology ◽  
A356 Aluminum

In order to obtain the non-dendritic feedstock for the semisolid forming process, a cooling slope processing was used. In this work, the effects of the angle, length of cooling slope and pouring temperature on the microstructure of A356 aluminum alloy were investigated. It showed that these parameters affect the size and morphology of α-Al phase to some extent. The results indicate that a pouring temperature of 650°C and a cooling slope with 45° in angle and 50 cm in length are the optimum parameters for preparing fine and globular grain structures. To eliminate the solidification shell formed in the surface of cooling slope, a nitride dope was coated on the surface of the cooling slope.

Semisolid Forging of 7000 Series Aluminum Alloys

2006 ◽  
Vol 116-117 ◽  
pp. 758-761 ◽  
Author(s):  
Zigor Azpilgain ◽  
Inaki Hurtado ◽  
R. Ortubay ◽  
I. Landa ◽  
J. Atxa
Keyword(s):  
Aluminum Alloys ◽  
Process Window ◽  
Optimum Process ◽  
Semisolid Processing ◽  
Automotive Components ◽  
Simple Component ◽  
Semisolid Forming ◽  
Foundry Alloys ◽  
7075 Alloy ◽  
Security Components

The achievement of lighter automotive components is an important driving force in the development and optimization of casting techniques. In this sense, semisolid forming is an emerging technology that has allowed the production of security components using aluminum alloys. The foundry alloys A356 and A357 remain, up to the present, the most used alloys for the semisolid processing of components. Nevertheless, several authors have pointed out the gain in properties that other alloy families could provide. In the present work, thixoformability of 7000 series aluminum alloys is studied. Thermodynamic calculations (CALPHAD method) and calorimetric experiments have been performed to determine the composition of alloys with an optimum process window. A modification of the 7075 alloy is proposed in order to improve its thixoformability parameters and optimize the process control. A simple component has been produced by semisolid forging and mechanical properties have been measured from tensile samples.

Analysis of Forming Process of Automotive Aluminum Alloys Considering Formability and Springback

2007 ◽  
pp. 857-860
Author(s):  
Won Oh Lee ◽  
Dae Yong Kim ◽  
June Hyung Kim ◽  
Kwan Soo Chung ◽  
Seung Hyun Hong
Keyword(s):  
Aluminum Alloys ◽  
Forming Process

scholarly journals Asymmetrical Rolling of Aluminum Alloys and Steels: A Review

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1126 ◽  
Author(s):  
Gabriela Vincze ◽  
Fábio J.P. Simões ◽  
Marilena C. Butuc
Keyword(s):  
Aluminum Alloys ◽  
Low Cost ◽  
Angular Speed ◽  
Thickness Reduction ◽  
Speed Ratio ◽  
Metallic Materials ◽  
Asymmetric Rolling ◽  
Forming Process ◽  
Metal Forming Process ◽  
Pros And Cons

Asymmetric rolling is an attractive metal forming process due to its simplicity, low cost and capability to produce unique characteristics in materials. The asymmetry promoted by the process leads to a formation of a large collection of texture components and a refined structure which is capable to improve the mechanical behavior of metallic materials. The aim of this work is to present a perspective of the process and to construct the bases for future development and application of this technique. Thus, several aspects are addressed such as process methods (i.e., dissimilarity of the rolls diameters, rolls angular speed or friction conditions), the process parameters (i.e., total thickness reduction, thickness reduction per pass, peripheral speed ratio, rolling routes) and their effect on material properties, including texture and microstructure evolution, and mechanical properties. This review is focused on the experimental description of asymmetric rolling applied to aluminum alloys and steels. Although the asymmetric rolling application was mostly at a laboratory scale, there is a good perspective for its implementation in the industry. The pros and cons based on the up to date literature and authors’ experience are presented and discussed.

scholarly journals Formability of Aluminum Alloys During Single Point Incremental Forming – A Review

2022 ◽  
Vol 12 (1) ◽  
pp. 0-0
Keyword(s):  
Aluminum Alloys ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Incremental Forming ◽  
Single Point ◽  
Single Point Incremental Forming ◽  
Forming Process ◽  
Batch Production ◽  
Significant Research ◽  
Incremental Sheet Metal Forming

Single point incremental sheet metal forming has passed through a period of ample improvement with developing responsiveness from research societies and industries globally. The process has expressively spared the practice of using costly dies, which makes it an appropriate process for manufacturing prototypes and small batch production. It also discovers easiness in fabricating components of timeworn equipment. Additionally, in recent years, aluminum alloys become the most commonly used materials in the automotive, aeronautics, and transportation industries for their structural and other applications. The effect of various process parameters on the formability of Single Point Incremental Forming of aluminum alloys has been critically surveyed. Ultimately, this article also debated the dares associated with the Single Point Incremental Forming process and recommended some correlated research regions which probably charm significant research considerations in the future.

scholarly journals APPLICATION OF ANTIFRICTION COATINGS TO REDUCE CONTACT FRICTION IN STRETCH-FORMING PROCESS OF DOUBLE CURVATURE SHELLS ON A DIES MADE OF ALUMINUM ALLOYS

2021 ◽  
Vol 23 (1) ◽  
pp. 41-47
Author(s):  
G.L. Rivin ◽  
◽  
E.G. Karpukhin ◽  
A.O. Koshkina ◽  
◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Coefficient Of Friction ◽  
Contact Friction ◽  
Technological Properties ◽  
Stretch Forming ◽  
Forming Process ◽  
Properties Of Coatings ◽  
Double Curvature ◽  
Antifriction Coatings ◽  
The Coefficient Of Friction

The article presents the results of research on antifriction coatings for use on die made of aluminum alloys. The expediency of using antifriction coatings to reduce friction when stretch-forming of double curvature shells is justified. To substantiate this, we performed numerical modeling of the skin-tight forming process in the «LS-dyna» CAE system. According to the results of modeling, the following relationship is observed: the lower the coefficient of friction, the more evenly distributed the thinning deformations over the thickness of the blank in stretch-forming. Test modes for determining the coefficient of friction on the MTU-01 friction machine and methods for obtaining other basic functional and technological properties of antifriction coatings are described. The antifriction and technological properties of coatings, such as the coefficient of friction, adhesion, wear resistance, conditional hardness, the time and temperature of polymerization of the coating are determined.

Sign in / Sign up

Export Citation Format

Share Document