What defines the drawability under different thermal conditions.
Warm forming of aluminium magnesium alloy sheet.
Journal of mechanical working technvlogy 2 1978 279 290 279 elsevier scientific publishing company amsterdam printed in the netherlands warm forming of aluminium magnesium alloy sheet f.
Drawing tests are performed on.
Results indicate that the formability of this material at cold and warm temperatures is better than at.
A paper by takuda et al.
This process is called warm forming.
The warm press forming of aluminium alloy sheets promoted a great interest and has been studied for several decades.
F shehata m j painter and r pearce 1978 warm forming of alimnium magnesium alloy sheet j mech.
The research in this domain was accelerated since 1980s 5 12.
Carsley et al aluminum forming technologies.
Status and research opportunities new developments in sheet metal forming international conference.
A study is carried out on the feasibility of using warm forming at temperatures from 100 to 250 c in order to improve the makeability of aluminium sheet components.
5 asm international 2012.
Working technology 2 p 279 crossref google scholar 2.
Evaluation of tensile behaviour of 5754 aluminium magnesium alloy at cold and warm temperatures.
Introduction sheet metal aluminum alloys are prime candidates for use in the automotive industry because of their good strength and stiffness to weight ratios.
Aluminum sheet alloys only typically posses moderate formability at room temperature limiting their design applications.
In the 1970 s an interest in warm forming emerged and it was discovered that an aluminium 6 magnesium alloy could give a total elongation of about 300 at about 250 c at the appropriate strain rate.
Contains the first references relating to this subject see also 2 4.
Warm and hotforming processes are characterized by an equilibrium of formability of the sheet material at certain temperatures and the strength needed to transmit the drawing forces in the sheet.
Now let us have a look at the considered drawing process.
Mj painter and r pearce 1980 the elevated temperature behaviour of some aluminium magnesium alloys a paper presented at the 11th iddrg biennial congress metz france june 1980 google scholar.
Warm forming of these alloys can significantly improve their formability and this is the main.
This was a non heat treatable strain hardening alloy but inevitably was of reduced cold ductility because of the alloying addition.
In this study uniaxial tensile deformation behaviour of 5754 aluminium magnesium alloy sheet was extensively studied at cold 60 to 0 c and warm room to 250 c forming temperatures and a strain rate range of 0 0016 0 042 s 1.
An exemplary aluminum alloy.
