Sheet Metal Formability Tester

8/13/2019 Sheet Metal Formability Tester

1/21

Sheet metal Formability tester-Ductility tester-Cupping tester-Drawing cup

tester

This is a short introduction to our range of equipment, for assessing and measuring

ductility, and formability of sheet metals. Whether the requirement is for quality control

or research & development in industry, science, or education, testing equipment for every

type of sheet metal forming.

International Standards

Erichsen Cupping Test

ISO 8!"

#$ %'8

#$ %()

*I$ '" %"%

*I$ '" %"+

S -8''%!(' $/ 0 "-("+

$/ 0 "-('+

0ST1 # (-8

IS %)'(%!(%

2IS 3++)

2IS 3))+!

4$I -"-)

4$# )"8"

5OST %" '%"

I6O$T#6 +%

SIS %% +(-'

S0S "%-+%!)

7$(8 """

1S3 ')"()

6S$ + "(

Erichsen Deep Drawing Cup Test

ISO %% '-%

*I$ '" %''

*I$ #$ %((!

1S3 ')-%(8

4$I (%+()

2IS 3++! $/ 0 '"-"%

0 great number of further sheet metal forming tests can be carried out using

our 4niversal Sheet 1etal Testing 1achines, equipped 9ith the suitable testtools

Olsen or 7erso: cupping test

Square cup test

ore e;panding test

*eep dra9ing cup test acc. to S9ift

/u?ui test

#ngelhardt test @* test

*etermination of the forming limit curves

Tests applying dra9ing speeds up to -" mAmin

6upping Tests at temperatures up to ''" degrees 6

ulge test


2/21

and many more...

Sheet Metal Testing Machines

Sheet 1etal Testing 1achine 1odel %""

Sheet 1etal Testing 1achine 1odel %"+

Sheet 1etal #aring Testing 1achine 1odel %"(

Sheet 1etal Testing 1achine 1odel %%%

#ar 1easuring Instrument 1odel %+(

#ar 1easuring Instrument 1odel %+(6

Sheet 1etal Testing 1achine 1odel %-

Weld Seam Testing 1achine 1odel %-8

Sheet 1etal Testing 1achine 1odel %+

/ully Integrated Sheet and Strip 1etal Testing 0uto grid System 1odel %++"

Sheet 1etal Testing 1achine 1odel %'

Sheet 1etal Testing 1achine 1odel %(

Sheet 1etal Testing 1achine 1odel %(%6alibration Set 1odel %)"

Sheet 1etal 1ar?ing *evice 1odel %!" 0uto 5rid B 0utomatic Strain 1easurement &

/@6 0nalysis System

Explaination of some machines such as:
http://www.worldoftest.com/sheet100.htmhttp://www.worldoftest.com/sheet102.htmhttp://www.worldoftest.com/sheet106.htmhttp://www.worldoftest.com/erichsen111.htmhttp://www.worldoftest.com/sheet126.htmhttp://www.worldoftest.com/sheet126c.htmhttp://www.worldoftest.com/sheet134.htmhttp://www.worldoftest.com/sheet138.htmhttp://www.worldoftest.com/sheet142.htmhttp://www.worldoftest.com/autogrid142system.htmhttp://www.worldoftest.com/sheet145.htmhttp://www.worldoftest.com/sheet146.htmhttp://www.worldoftest.com/sheet161.htmhttp://www.worldoftest.com/sheet170.htmhttp://www.worldoftest.com/sheet190.htmhttp://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/sheet100.htmhttp://www.worldoftest.com/sheet102.htmhttp://www.worldoftest.com/sheet106.htmhttp://www.worldoftest.com/erichsen111.htmhttp://www.worldoftest.com/sheet126.htmhttp://www.worldoftest.com/sheet126c.htmhttp://www.worldoftest.com/sheet134.htmhttp://www.worldoftest.com/sheet138.htmhttp://www.worldoftest.com/sheet142.htmhttp://www.worldoftest.com/autogrid142system.htmhttp://www.worldoftest.com/sheet145.htmhttp://www.worldoftest.com/sheet146.htmhttp://www.worldoftest.com/sheet161.htmhttp://www.worldoftest.com/sheet170.htmhttp://www.worldoftest.com/sheet190.htmhttp://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/autogrid.htm


3/21

Erichsen Model !! Sheet Metal Cupping Tester

#richsen 1odel %"" Sheet 1etal 6upping Tester

Simple" Manually #perated Sheet Metal Testing Machine

Model !! Sheet Metal Cupping Tester

1odel %"" Sheet 1etal Testing 1achine for manual operation provides a ma;imum

dra9ing force of -" ?$ and a blan? holder force according to the standard, of %" ?$.

1odel %"", is a bench mounted unit 9ith a cast iron machine body and a cylindrical test

head. To conduct the cupping test the sheet metal specimen or foil is entered into an

opening through the test head. The scre9in blan?holder is set for the sheet thic?ness

using the scale provided. The test head is then tightened manually against a stop on the

locating sleeve. This clamps the blan? 9ith a force of %" ?$ as required by the cupping

test standards mentioned above. The clutch pin is pulled out9ards from the locating

sleeve, the test head is turned cloc?9ise and the cupping process commences.


4/21

$pplication

The manually operated Testing 1achine is intended for measuring the dra9ing qualities

of ferrous and nonferrous metal by means of the #CI6S#$ 6477I$5 T#ST in

accordance 9ith

ISO 8!"

#$ %'8

#$ %()

*I$ '" %"% A '" %"+

#tc

On sheet and strip from ".+ to %.' mm thic? and on

foil material in thic?nesses do9n to ".""' mm. ecause it is easy to operate the

machine, it is particularly suitable for use in factories only involved 9ith a limited

amount of sheet metal forming, and applications confined to thinner materials.

%or&ing principle

1odel %"" provides a means to measure the dra9ing quality of sheet metal 9ith

very little effort. y establishing the quality of material 9hich is still Eust

satisfactory for producing a particular dra9n 9or?piece the lo9est cost material

suitable for the part can be established. The standardised #CI6S#$ 6upping

Test is useful for the 7urchasing *epartment, as part of an order specification. The

surface grain si:e is sho9n up clearly on the tip of the bulge produced in the

6upping Test, and this can be interpretted as a numerical value 9ith the aid of the

#CI6S#$ grain scale. On this basis, the grain si:e of the sheet metal can also be

fi;ed at the outset. $o special s?ills are required to operate the machine.

Sheet Metal Testing Machine - Model !'


5/21

1odel %"+, 9ith electrohydraulic drive, ma;. dra9ing force of (" ?$ and automatic

s9itch off at specimen failure.

The machine consists of a sturdy sheet metal housing into 9hich the test aggregate and the test tools as 9ell as the hydraulic

system are integrated. The operatorFs controls are arranged conveniently on a control

panel. 0s an option, an electrohydraulic blan?ing press for the manufacture of blan?s for

the *eep *ra9ing 6up Test can be fitted into the machine housing.

When carrying out the *eep *ra9ing 6up Test, the round blan? manufactured by the

electrohydraulic blan?ing press, is placed into an infinitely variable centering device

located in the test cylinder. 0fter reselections of the sheet holder pressure the blan? is

dra9n by a dra9ing punch to a cylindrical hollo9 part, the

socalled cup. The inner diameter of the dra9ing die used, corresponds to the sheet

thic?ness to be tested. 0fter return of the dra9ing piston to the starting position, the cup

can be removed from the test head 9ithout any difficulty.

When carrying out the ore #;panding Test the initial bore


6/21


7/21

$pplication

This Sheet 1etal Testing 1achine is intended for testing materials in the medium

thic?ness range


8/21

Sheet Metal Testing Machine - Earing Test Machine - Model !,

Sheet and Strip 1etal Testing 1achine in special design, 9ith electrohydraulic drive, for

the manufacture of standard cups to establish earing 1odel %"(.

To operate the electrohydraulic sheet and strip metal testing machine is very simple. Thesheet metal strip 9hich has to be at least )" mm 9ide, is inserted into the %" mm 9ide

machine aperture. In a single operation the blan? is stamped out and the standard cup is

dra9n.

The blan?holder pressure necessary to prevent the formation of folds during deep

dra9ing of cups is provided hydraulically, and can be read off on a pressure gauge. This

pressure is infinitely adEustable in the range from " to %8 ?$ by means of a regulating

valve and remains constant until Eust before the end of the dra9. It then falls

automatically to :ero to prevent squashing of the ears, 9hich 9ould give a misleading

result.

Sheet 1etal Testing 1achine #aring Test 1achine 1odel %"(


9/21

$pplication

The operation of 1odel %"( is comparable to a blan?ing and dra9ing press. It is used to

ma?e quic?ly and 9here enquired in batches standard cups using any type of steel or

nonferrous metal, especially in accordance 9ith *I$ '" %'', 4$I (%+() and 1S3

')-% (8. On these standard cups the anisotropy, i.e. the preferred crystal alignment in

the various directions of the plane of the sheet metal can be established by e;amining the

position, number and form of the ears.

The #ar 1easuring Instrument, 1odel %+(, is employed to obtain a numerical

measurement for the average ear height in millimeters and percent, and the depth of the

cup.

With the available ma;imum blan?ing and dra9ing force of )) ?$, 1odel %"( can dra9

sheet metal ".% to %." mm thic? based on a tensile strength of "" $AmmD or ".% to +.8

mm thic? based on a tensile strength of %"" $AmmD.

The required 9idth of material is appro;. )" to %" mm. To test narro9er strips


10/21

The ey to Control Elements

%. 6ontrol lever %+. lan? holder regulator

+. Stripper ring %-. *ra9er

-. lan?ing rings

. Test cylinder

'. 6up eEector

(. 7lug scre9

). 7ilot valve

8. lan?holder

!. Strip entry

%". 6ontrol panel

%%. 1ain s9itch


11/21

$ccessories

#ar 1easuring Instrument, 1odel %"( for rapid measurement of ears formed on

cylindrical cups of diameters from %' to '" mm. The heights of the ears and the valleys

are measured as a percentage and in millimeters by simple placing of the cup on the

location of the instrument. The measuring result is displayed on a digital device 9hen a

button is operated.


12/21

Fully )ntegrated Sheet and Strip Metal Testing $utogrid System Model .'-'!

#lectrohydraulic sheet metal testing 9ith automatic strain analysis based on grid patterns

This Testing 1achine can be used not only to perform effortlessly, quic?ly and

accurately all important and ?no9n deep dra9ing tests for ferrous and nonferrous

metals, but it is also designed for a large number of additional technological

investigations. The Testing 1achine is driven electrohydraulically. The test sequence

can be controlled automatically or manually, as desired.

0 programme logic control is used to control the functions of the machine. *ra9ing force

and blan?holder force as 9ell as the dra9ing punch stro?e are displayed digitally. The

tripleacting hydraulic system in conEunction 9ith the general design results in the

follo9ing cost saving simplifications. In this Sheet and Strip 1etal Testing 1achine the

sheet holder force control is realised in proportional valve technology 9ith differential

pressure measurement. The dra9ing speed is also regulated through proportional valve

technology. Therefore allo9ing a much finer and more stable adEustment of the

parameters. The Sheet and Strip 1etal Testing 1achine, 1odel %+, 9as developed not

only for testing as a means for continuous production control, using standardised and

other established methods, but also for research into all aspects of testing of sheet metal

for deep dra9ing, due to the precise data acquisiton of all parameters during testing.


13/21

$uto /rid0

We provide the 0uto5rid system solution for strain analysis in sheet metal industry.

ased upon the automatic evaluation of grid patterns that consist of printed or

electrochemically mar?ed orthogonal lines spaced at % to ' mm, the system is able to

determine a field of strain values on specimens or components very rapidly. Strains of

more than %"" J can be measured 9ith high accuracy and reliability


14/21

Technical Specifications for Fully )ntegrated Sheet and Strip Metal Testing

$uto grid - Model .'-'!

*ra9ing force +"" ?$

lan?ing force +(' ?$

lan? holder force up to %"" ?$

*ra9ing punch stro?e appro;. 8" mm

lan? holder stro?e appro;. -8 mm

*ra9ing punch dia. up to '" mm

*ra9ing punch dia. up to %"" mm

lan? dia. up to %+" mm

*ra9ing speed appro;. %.%"" mmAmin

*igital displays A resolution

*ra9ing punch stro?e ".% mm

*ra9ing force ".% ?$

lan? holder force ".% ?$

$utom

atic Strain Measurement and Determination of Forming 1imit Cur2e 3F1C4 2ia

$uto /rid

Model-, 5ulge6F1C Tester
http://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/autogrid.htmhttp://www.worldoftest.com/autogrid.htm


15/21

The ne9 Kualitest ulgeA/@6 Tester offers une;pected possibilities 9ithin the field of

modern material testing. Thus specimens up to a si:e of "";('" mm can be tested by

carrying out the hydraulic deep dra9ing test. In addition to the actual hydraulic forming

process the design also allo9s the use of ball punches up to a diameter of +"" mm. The

ma;imum dra9ing force is %.""" ?$. In order to guarantee an e;act reading of the

required dra9ing force even in case of lo9er forces these are divided into t9o measuring

ranges. 0t specimen failure the test can be stopped both manually or automatically. The

capture of the given dome geometry is carried out preferably by an optical measuring

device placed on top of the test head or by a

standard displacement measurement of the dome height, ma;. measuring path being %""

mm, 9ith digital indication.

The operation of the testing machine is most simple. 0fter the specimen has been placed

into the test head, the hydraulic system is started 9ith the help of a push button

9hereupon in the first instance the test panel is clamped tightly. Thereafter the dra9ing

piston moves up9ards and presses the quantity of oil that is located bet9een the piston

and the test panel, into the direction of the test panel so that the specimen is formed into a

spherical bulge. 0fter the machine has s9itched off automatically at specimen failure all

hydraulic pistons return to their ground position. inged protective panels made of

7le;iglass, prevent oil splashes from spouting.

Model-, 5ulge6F1C Tester


16/21

Characteri7ation of material

The reliable and defined characteri:ation of materials is a basic requirement that is

absolutely necessary for gaining input data for modern simulation calculations 9hich in

turn are used for the faster development of components and tools. In addition, ne9

methods are required for process monitoring and quality assurance supplying material

information in a quic? and easy manner. 0 car body is a good e;ample to ma?e clear ho9

many different materials are used for the various components . *ependend on

their material properties e.g. TCI7ATWI7 steels, qualified by their high stability, are used

for loadsupporting components such as columns. ased on the struggle of the automotive

industry for 9eight reduction, ne9 aluminium, magnesium and steel alloys have been

developed, 9hich guarantee e;celllent strength properties and a good forming behaviour

at the same time even in thic?ness ranges of % to + mm.


17/21

/or the characteri:ation of these materials as 9ell as for the quality assurance in

production, effective test methods are needed 9hich supply comprehensive information

on the forming behavior.

0utomatic Strain 1easurement /orming @imit 6urve via 0uto5rid vario


18/21

0utomatic Strain 1easurement /orming @imit 6urve via 0uto5rid

$uto/rid 2ario

that consist of electrochemicallymar?ed orthogonal lines spaced %' mm. The system is

able to determine a field of strain values in the range of ".' J to more than %"" J

9ithout any unambiguity. The 0uto5rid systems proved 9ell suited for a variety of

applications in deep dra9ing and hydroforming as 9ell as for different materials

including aluminium alloys, stainless steel and fibre reinforced composites.

The 0uto5rid vario is fitted 9ith an inprocess facility, i.e. an e;tension that allo9s the

recording of deformations and strains during a forming process. This type of operation

facilitates the measurement of forming limit curves if the precalibrated measuring

head is mounted on a sheet metal testing machine . 0ll four cameras

observing the specimen from different perspective vie9s are e;actly synchroni:ed and

the image sequences are recorded 9ith a rate of up to %' ; frames per second.

#lectronic shuttering is combined 9ith the progressive scanning mode of the cameras


19/21

9ith variable e;posure time to avoid any blur or disturbance due to the obEect motion.

#mploying latest digital camera technology 0uto5rid vario provides '.) million pi;el per

recording. In case of the standard testing velocity of %+ mmAs, a punch depth resolution

of less than ".% mm can be achieved. In many practical cases some lo9er frame rates can

be chosen. The length of the sequence recorded fulfils all practical requirement by

appropriate memory configuration of the noteboo? 76 used.

In addition, the inprocess facility supports the data acquisition of signals from the testing

machine. 1easuring data, e. g. of path and force pictures in the sequence and the

recording can be controlled automatically by corresponding thresholds.

0fter the test, the 9hole sequence of image ensembles is stored in memory and may be

inspected immediately or saved to dis? for further analyses if desired. The sequence can

be displayed step by step, :oomed and also connected to forceApath data in order to

identify the moment and the location 9here the critical nec?ing occured first.

Kualitest provides a fast and accurate tool for the determination of forming limit curves

of sheet metal materials. *irectly connected to the testing machine, the system

gives precise access to the ma;imum strain value Eust before nec?ing and subsequent

crac?ing occurs. 6omfortable soft9are allo9s to create /@6s from a set of specimens

very effectively. /urthermore, the customer have the option to create free editable /@*

reports for documentation. Of course, 0uto5rid vario can also be used e.g. for bulge or

tensile tests. The unsurpassed performance allo9s for materials testing and component

analysis 9ith one system, 9hich ma?es 0uto5rid vario the ideal solution for quality

assurance purposes in sheet metal industry.


20/21

Technical Specifications for $uto /rid 2ario

1easuring head

progressive scanning 66* cameras %-!+ ; %"" activepi;el 9ith fM8,%( +' mm high quality measuring lensesH 76

connection and po9er supply via a single m cable using the

fire9ire interfaceH convenient transport bo;, 9eight 8 ?g

6omputer

brand mar? first class laptop 76 9ith 9orld9ide service, incl.

laptop case

#nvironmenttemperature operating %" ... -'N 6, nonoperating " ... )"N 6humidity +"J...!-J noncondensing

Soft9are

1icrosoft Windo9s G7 7rofessional

full compatibility 9ith 1icrosoft Office applications and otherstandard soft9are

1easuring

volume

about '"" ; "" ; +"" mmP per image set /ield of data up to %+.""" measured points per single

measurementHcombined measurements 9ithout si:e limitation

6alibration

fi;ed optical setup maintaining long term calibrationH

automated, robust selfcalibration procedure usingcertified calibration gauge

1easuring time -' min for a complete analysis of one image set

Cecording ma;. %' frames per second

Cesults* shape coordinates ;,y,: QmmR at grid line crossing pointsHengineering strain QJR, true strain , v.1ises equivalent strain,

thinning QJR, thic?ness QmmR

5raphs

-* surface display using original obEect grid for direct resultmapping to obEect color encoded presentation of strain and

thic?ness as te;ture on the -* obEect +* data profiles along user

defined curves forming limit diagram 9ith various /@6Usand au;iliary lines interactive tool for the creation of /@6Us from

strain data sets free editable /@* reports

0ccuracy

field ofvie9 QmmPR

gridQmmR7oints perimage set

V;QmmR

VyQmmR

V:QmmR

V

'"" ; "" ;

+""+." X %+.""" "."% "."% "."+

".'

J

'"" ; "" ;

+"" -." X !.""" "."% "."% "."+

".-

J

'"" ; "" ;

+""'." X (.""" "."% "."% "."+

".%

J

#;portgraphs printer, clipboard, Y.bmp, Y.tif, Y.png, Y.Epg, Y.gif, Y.ps,Y.eps data 0S6II, 0uto/orm, 7amStamp, Y.stl, 0uto60*


21/21

Documents

Sheet Metal Formability Tester