NEW RESEARCH DEVELOPMENT, INDUSTRIAL APPLICATION AND SOME THINKING OF SEMI-SOLID METAL FORMING

2003 ◽  
Vol 39 (11) ◽  
pp. 52 ◽  
Author(s):  
Shoujing Luo
Keyword(s):  
Industrial Application ◽  
Metal Forming ◽  
Solid Metal ◽  
Research Development ◽  
Semi Solid ◽  
New Research

scholarly journals Thermal stability of laser treated die material for semi-solid metal forming

2009 ◽  
Vol 2 (S1) ◽  
pp. 761-764 ◽  
Author(s):  
S. N. Aqida ◽  
M. Maurel ◽  
D. Brabazon ◽  
S. Naher ◽  
M. Rosso
Keyword(s):  
Thermal Stability ◽  
Metal Forming ◽  
Solid Metal ◽  
Die Material ◽  
Semi Solid ◽  
Thermal Stability Of

Semi-Solid Metal Processing – A Process Looking for a Market

2008 ◽  
Vol 141-143 ◽  
pp. 1-8 ◽  
Author(s):  
Plato Kapranos
Keyword(s):  
Metal Forming ◽  
Solid Metal ◽  
Typical Case ◽  
Managerial Decisions ◽  
Human Scale ◽  
Patent Rights ◽  
Innovative Idea ◽  
Metal Processing ◽  
Semi Solid ◽  
The One

The birth of Semi-Solid Metal Forming (SSM) or as it has now come to be widely known, Thixoforming, is a typical case of development of a technological innovation. Serendipity, stroke of luck, call it what you may, the beginning of SSM is based on an almost accidental discovery by a student carrying out a series of meticulous experiments. On the one hand, some technological failures have contributed to the lack of success across the board for SSM technologies. On the other hand, the ‘long childhood’ of the resulting technology or the process of moving from ‘Innovative Idea to Market' has been largely the result of difficult and in hindsight sometimes wrong managerial decisions, occasional personality clashes, patent rights and at times unavoidable all out business 'warfare'. Of course, hindsight is beautiful but unfortunately it always comes after the event. However, if one looks carefully at some of the notable successes of SSM forming one can discern that the problems were more on the human scale; people failures rather than technology failures. This paper aims to bring out some of these points by outlining the historical development of Thixoforming.

scholarly journals R-HPDC in South Africa

2012 ◽  
Vol 192-193 ◽  
pp. 3-15 ◽  
Author(s):  
Ulyate Andries Curle ◽  
Heinrich Möller ◽  
Gonasagren Govender
Keyword(s):  
South Africa ◽  
Metal Forming ◽  
Solid Metal ◽  
Matrix Composites ◽  
Purity Aluminium ◽  
Binary Eutectic ◽  
History Of ◽  
High Purity Aluminium ◽  
Semi Solid ◽  
Pressure Die Casting

The history of semi-solid metal forming and in particular rheo-high pressure die casting at the Council for Scientific and Industrial Research in South Africa is discussed. Processing flexibility is demonstrated on the Al-Si-Mg, Al-Mg-Si, Al-Cu-Mg and Al-Zn-Mg-Cu casting and wrought alloy systems as well as on high purity aluminium, unmodified Al-Si binary eutectic, metal matrix composites and magnesium alloys. Material properties are highlighted.

Industrial Applications of Rheoforming Technology in China

2012 ◽  
Vol 192-193 ◽  
pp. 36-46
Author(s):  
W.C. Keung ◽  
Xiang Jie Yang ◽  
Wei Wei Shan
Keyword(s):  
Metal Forming ◽  
Academic Research ◽  
Industrial Applications ◽  
Solid Metal ◽  
Current Status ◽  
Forming Process ◽  
Metal Forming Process ◽  
Semi Solid ◽  
China Mainland ◽  
Rheological Forming

Rheological forming, a semi-solid metal forming process, is one of the manufacturing technologies for near net shape forming. The technology has attracted global academic research interests in recent years. This paper presents the current status of industrial applications of the semi-solid rheological forming technology in the China mainland. A variety of semi-solid slurry preparation techniques have been adopted including electromagnetic stirring and low superheat pouring. Dedicated semi-solid rheological forming equipment developed by the local manufacturers have been highlighted. This paper also makes an attempt to review the crucial factors for successful industrial application of the semi-solid metal forming process.

Alumina PVD Tool Coatings for the Use in Semi Solid Metal Forming of Steel

2006 ◽  
Vol 116-117 ◽  
pp. 704-707 ◽  
Author(s):  
Kirsten Bobzin ◽  
Erich Lugscheider ◽  
Michel Maes ◽  
Philipp Immich
Keyword(s):  
Thin Film ◽  
Metal Forming ◽  
Physical Vapor Deposition ◽  
Field Tests ◽  
High Strength ◽  
Solid Metal ◽  
Tool Coatings ◽  
Semi Solid ◽  
Steel Substrates ◽  
Very High

The process of semi solid metal forming with permanent moulds combines the advantages of the process technologies casting and forging. Semi solid metal forming of steel is a challenge with respect to very high thermal, mechanical and tribological stresses of tools. Alumina based ceramics show a very high potential for tool protection. Alumina occurs in different known meta stable phases. First experiments show that the high temperature γ-phase exhibits high strength and toughness. Various methods and technologies have examined γ-phase stabilisation by using different thin film process technologies. By using Physical Vapor Deposition (PVD) it was possible to deposit γ-Alumina in a temperature range, where hot working steel can be utilized. The properties of the by pulsed reactive magnetron sputtering deposited films were analyzed by common thin film techniques revealing hardness, Young´s modulus and coating adhesion. By using the reactive pulsed PVD-process it was possible to stabilize γ-Al2O3 on steel substrates for semi-solid melt protection. The γ-Al2O3 coatings showed an extra ordinary stability for thixoforging of X210CrW12 and 100Cr6 in field tests. The durability of the permanent moulds was increased by using PVD thin film coatings as a tool protection.

Analysis on Microstructure of AlSi7Cu5 Alloy by Slope Near-Liquidus Method

2009 ◽  
Vol 419-420 ◽  
pp. 517-520 ◽  
Author(s):  
Shi Kun Xie ◽  
Xiao Qiu Zheng ◽  
Rong Xi Yi ◽  
Xiao Liang Pan ◽  
Xiu Yan Guo
Keyword(s):  
Thermal Conductivity ◽  
Metal Forming ◽  
Solid Metal ◽  
Casting Method ◽  
Alloy Casting ◽  
Novel Technology ◽  
Cooling Method ◽  
Average Grain Size ◽  
Near Net Shape ◽  
Semi Solid

SSM(Semi-solid metal) forming has been developed to become a novel technology in the 21st century for the formation of near net shape components, competing with conventional casting and forging technologies. In this paper, the casting microstructure and its change during remelting of AlSi7Cu5 alloy casting by slope near-liquidus method were researched. Experiments show that it has a significant impact on microstructure by cooling method, the thermal conductivity of the casting mold and casting method. The microstructure of AlSi7Cu5 alloy obtained by slope near-liquidus method at 600°C is uniform and small equiaxed Its average grain diameter is about 55.2um, and its average grain size roundness is about 2.13. The reheated microstructure which can be applied in thixo-forming preferable will be obtained by keeping constant temperature 25min at 580°C.

Mushy/Semi-Solid Metal Forming Technology – Present and Future

CIRP Annals ◽  
2002 ◽  
Vol 51 (2) ◽  
pp. 653-670 ◽  
Author(s):  
M. Kiuchi ◽  
R. Kopp
Keyword(s):  
Metal Forming ◽  
Solid Metal ◽  
Forming Technology ◽  
Semi Solid
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