Review and Recent Developments in Physical Modeling of Metal Forming

2005 ◽  
Vol 8 (4) ◽  
pp. 383-408
Author(s):  
Dirk Nolte ◽  
Rama Krishna Uyyuru
Keyword(s):  
Physical Modeling ◽  
Metal Forming ◽  
Recent Developments

Control of Uncertainties in Metal Forming by Applications of Higher Flexibility Dimensions

2011 ◽  
Vol 104 ◽  
pp. 83-93 ◽  
Author(s):  
Peter Groche ◽  
M. Kraft ◽  
S. Schmitt ◽  
S. Calmano ◽  
U. Lorenz ◽  
...  
Keyword(s):  
Metal Forming ◽  
Life Cycles ◽  
Flexible Forming ◽  
Product Life ◽  
Product Life Cycles ◽  
Servo Press ◽  
Recent Developments

It is widely accepted that fluctuations in market demands and product life cycles are often unpredictable. Based on these uncertainties, companies cannot calculate with constant demands. Manufacturers are also confronted with quality fluctuations in semi-finished parts that lead to various product qualities. This paper identifies the most relevant uncertainties for companies and gives answers how manufacturers can deal with these problems. It also shows recent developments in the field of flexible forming using servo press technology. Hereby the focus is set on 3D Servo Presses, providing various options for accomplishing uncertainties.

scholarly journals Towards Damage Controlled Hot Forming

2018 ◽  
Vol 885 ◽  
pp. 56-63
Author(s):  
Markus Bambach ◽  
Irina Sizova ◽  
Aliakbar Emdadi
Keyword(s):  
Metal Forming ◽  
High Performance ◽  
Titanium Aluminides ◽  
Turbine Blades ◽  
Process Time ◽  
Jet Engines ◽  
Internal Damage ◽  
Creep Properties ◽  
Recent Developments ◽  
Ram Speed

Metal forming processes may induce internal damage in the form of voids in the workpiece under unfavorable deformation conditions. Controlling the amount of damage induced by metal forming operations may increase service performance of the produced parts. Damage is crucial in high-performance components of limited workability such as jet engine turbine blades. Recent developments have introduced forged titanium aluminides into commercial jet engines. Titanium aluminides are lightweight intermetallic compounds with excellent creep properties but very limited ductility. Their low workability requires isothermal forging at slow strain rates, which is typically kept constant in the process. This work explores the possibility of increasing the ram speed during the process so that the process time is reduced while the amount of damage introduced into the workpiece is controlled. The results show that a 25% reduction in process time seems viable without increase in damage by solving an optimal control problem, in which the ram speed profile is determined off-line by minimization.

Recent developments in metal forming

1971 ◽  
Vol 50 (6) ◽  
pp. 239 ◽  
Author(s):  
W. Johnson ◽  
J.B. Hawkyard
Keyword(s):  
Metal Forming ◽  
Recent Developments

Linear drives in metal forming machines and peripherals–recent developments

2016 ◽  
Vol 22 ◽  
pp. 192-198 ◽  
Author(s):  
B.-A. Behrens ◽  
R. Krimm ◽  
D. Reich ◽  
S. Teichrib
Keyword(s):  
Metal Forming ◽  
Recent Developments

Milestone Developments in Welding and Joining Processes

1997 ◽  
Vol 119 (4B) ◽  
pp. 801-810 ◽  
Author(s):  
E. Kannatey-Asibu
Keyword(s):  
Metal Forming ◽  
Material Removal ◽  
Welding Process ◽  
Manufacturing Processes ◽  
The Past ◽  
Literature Reviews ◽  
Recent Developments ◽  
Ancient Times ◽  
The Subject ◽  
Page Limit

Welding, like other major manufacturing processes such as casting, metal forming, and material removal, has its roots in ancient times, though not necessarily in the various forms as we know them today. It therefore has a long history, with thousands of articles having been published on various aspects of the welding process over the years. However, there have been periodic reviews of the literature in the past, that summarize significant developments in the field. Thus, due to constraints on page limit, and to avoid unnecessary repetition of what is already well reviewed in the literature, this article will reference the key literature reviews on the subject, providing brief summaries where appropriate. The bulk of the article will then be devoted to more recent developments in the field. Due to the breadth of material to be covered, this review is designed to be more of a summary of key developments rather than a critique of a specific field.

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