Sheet metal forming behaviour and mechanical properties of TRIP steels

1999 ◽  
Vol 70 (11) ◽  
pp. 472-479 ◽  
Author(s):  
Wolfgang Bleck ◽  
Joachim Ohlert ◽  
Kostas Papamantellos
Keyword(s):  
Mechanical Properties ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Trip Steels ◽  
Forming Behaviour

Bending and Stamping Processes of FSWed Thin Sheets in AA1050 Alloy

2014 ◽  
Vol 622-623 ◽  
pp. 459-466 ◽  
Author(s):  
Michela Simoncini ◽  
Lorenzo Panaccio ◽  
Archimede Forcellese
Keyword(s):  
Mechanical Properties ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Preliminary Investigation ◽  
Thin Sheets ◽  
Microstructural Investigation ◽  
Bending Tests ◽  
Friction Stir ◽  
Hemispherical Punch

The present investigation aims at studying post-welding forming operations of friction stir welded AA1050 aluminium thin sheets. A preliminary investigation has allowed to define the rotational and welding speed values leading to friction stir welded joints with high mechanical properties. Then, formability and elastic springback were evaluated using the hemispherical punch and bending tests, respectively. A microstructural investigation has allowed to relate the mechanical properties of joints to microstructure. Finally, the friction stir welded assemblies were subjected to air bending and stamping experiments in order to evaluate their attitude to undergo to sheet metal forming operations.

Tribology in Sheet Metal Forming with Regard to Challenges in Lightweight Construction

2005 ◽  
Vol 6-8 ◽  
pp. 93-100 ◽  
Author(s):  
Peter Groche ◽  
T. Callies
Keyword(s):  
Mechanical Properties ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Tool Material ◽  
High Strength Steels ◽  
High Strength ◽  
Lightweight Construction ◽  
Metal Material ◽  
Tribological System

Today’s sheet metal forming is affected by several trends concerning sheet metal material. The sheet metal forming industry is thereby influenced by the reinforced demand of drawn components made of high strength steels, aluminum or magnesium because of economical and ecological reasons. Besides shifted mechanical properties, changing the sheet metal material influences the entire tribological system and therefore raises questions concerning the suitability of the tool material as well as the lubrication.

ИССЛЕДОВАНИЕ ТОЧНОСТИ ДЕТАЛЕЙ, ПОЛУЧАЕМЫХ ПРИ РАЗДЕЛИТЕЛЬНЫХ ОПЕРАЦИЯХ В ПЕРЕНАЛАЖИВАЕМЫХ ШТАМПАХ

2018 ◽  
pp. 52-63
Author(s):  
Е. А. Фролов ◽  
В. В. Агарков ◽  
С. И. Кравченко ◽  
С. Г. Ясько
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Balance Method ◽  
Experiment Planning ◽  
Practical Recommendations

To determine the accuracy of the readjustable punches for separating operations (perforation + punching out) of sheet-metal forming, the accuracy parameters were analyzed using the random balance method using the method of experiment planning. Analytical dependencies are obtained to determine the values of deviation of the outer and inner contour dimensions of perforated and punched out sheet parts. From the dependencies obtained, it is possible to estimate and predict the value of deviation in the dimensions of the resulting part at any time during the operation of the punch. Practical recommendations on the calculation of the actuating dimensions of the working elements (stamping punch, matrix) of readjustable punches are offered.

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