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Machines for Powder Metallurgy Presses and Production Lines
400 4.000 350 750 800 750 x750 240 14 30500 5.000 350 750 800 750 x750 220 12 30630 6.300 350 750 850 800 x800 260 10 30800 8.000 350 750 1.000 900 x800 260 13 55
1.000 10.000 350 750 1.100 1.000 x800 300 12 55
200 2.000 350 750 750 700 x700 260 12 30250 2.500 350 750 750 700 x700 270 13 30315 3.150 350 750 800 750 x750 250 12 30
MPP and KP series
Technical specification
MPP series 250 400 630 1000
Press force [ kN ] 2.500 4.000 6.300 10.000
Filling height [ mm ] 165 165 165 180
Press force [ kN ] 2.500 4.000 6.300 6.300
Upper ram stroke [ mm ] 250 250 250 325
Stroke count [ 1/min ] 15 13 11 9
Platen 4
Stroke [ mm ] 50 50 50 70
Press force [ kN ] 1.000 2.000 2.500 3.150Platen 1 (die)
Stroke [ mm ] 165 165 165 180
Press force [ kN ] 2.500 4.000 6.300 8.000Platen 2
Stroke [ mm ] 165 165 165 180
Press force [ kN ] 2.500 4.000 6.300 8.000Platen 3
Stroke [ mm ] 165 165 165 180
Press force [ kN ] 1.750 1.500 2.300 2.500Core rod
Stroke [ mm ] 165 165 165 180
Press force [ kN ] 2.500 4.000 6.300 10.000
Stroke [ mm ] 40 40 40 50
Upper auxiliary piston
Ejection force [ kN ] 200 200 200 200
Servo-hydraulic CNC multi-platen metal powder press.
AB
C
D
E
KP Press force Ram stroke Max. distance Guide distance Area Ram speed Press speed Prime moverBottom platen/ram Bottom platen (ram)
Width x depth (empty - upstroke)[kN] [mm] [mm] [mm] [mm] x [mm] [mm/sec] [mm/sec] [kW]
KP hydraulic sizing press.
Further press models and sizes available on request
Economical solutions for powder metallurgy
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What we offer
Series MPP servo-hydraulic CNC multi-platen metal powderpresses
Powder forging presses and automated powder forging production lines
Series KP hydraulic sizing presses and automated sizinglines
LASCO has made availablesolutions for metal-forming tasksto users in industry and its relatedtrades since its beginnings in1863. In more than 140 yearscapability has grown to offerproduction technology speciallyadapted to the rugged workingenvironments of the metal-formingindustry. Today we can count over1000 companies in our list ofcustomers in 53 countries aroundthe globe in working fields of allkinds.
Because of innovative engineeringand efficiency, LASCO´s hydraulicand screw presses used worldwideare also favoured for powderforging. In addition, our Companyhas years of experience in themanufacture of equipment forprocesses related to metal powdercompaction, for example, in theproduction of industrial ceramicsand sand-lime bricks.
This is why LASCO's machines andtheir automation have been settingstandards for years, especially withregard to economy and preciselycontrolled double-action (double-sided) compaction of materials inpowder form.
This expertise and our provencompetence as a supplier oftechnology for cold and hotforming has given us the capability
to offer optimised machines andproduction equipment for themanufacture of metal powdercomponents:
Metal powder products are becoming indispensable in many fields of industry. Drive gears and rotor parts represent just a few of the manyproducts manufactured.
Hydraulische Pressen in der Massivumformung
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LASCO concepts ...
Layout of a press cylinder on a "LASCO"hydraulic press.
Comprehensively proven...
Regardless of whether they aremetal powder presses, powderforging presses or sizing presses –LASCO's hydraulic presses arerecognisable by their outstandingfeatures.
Press cylinderThe press cylinder is forged steelwith the bore honed. A pre-fillvalve between the top of the cylinder and the oil tank ensuresrapid filling and return of the oil.Split chevron packings with wiperrings provide a seal between cylinder and piston.
Press pistonThe press piston is also forged.The contact surfaces are hardened,ground, and polished. A bronzebush ensures optimum sliding characteristics in the upper sealingand guiding area.
RamThe ram may be either a steelcasting or welded construction,fully stress-relieved. The presspiston is accurately mated with thebore in the ram and clamped secu-rely.
Guiding systemThe guiding system is designedaccording to the specific application. For powder forgingpresses, a system maintaining con-stant clearance in spite of heatexpansion has become standard.For sizing presses, a guidingsystem with eight slideways is pre-ferred. The sliding surfaces arebronze running on nitrated steel.Tight clearances may be maintai-ned and are adjustable by shims.
Combined with the long ram guiding system and the high pressrigidity, production of high accuracy parts with excellent toollife is assured.
Press frame designThe choice of press frame design,either single piece or multiple ele-ment construction is determinedby table area, installation height,ram stroke and application.
Single piece welded con -struction, stress-relieving heattreated.
Multiple element press frames,consisting of press table,uprights and cross head, pre-stressed with four tie rods.
Multiple element press frameThe press frame offers a whole lotof advantages, compared with sin-gle piece frames. Different materi-als of special suitability may be considered for the individual parts.
Potential notch stress concentrationsat the connection between thetable and the uprights and between the cross-head and theuprights on single piece frames areeliminated.
Transport of multiple elementpress frames may be easier and atlower cost, as the press is able tobe disassembled into smallerunits.
Above all, the press frame consisting of several parts is considerably more rigid as a resultof the pre-stressing. For the sametensile stress, the elongation isonly 20% of the value induced ina single piece frame.
As well as ensuring longevity ofthe frame, and forming of moreaccurate parts, the overall size andweight of the press may be redu-ced.
Überzeugend wirtschaftlich...in demanding environments
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… in detail
Ram support deviceA pneumatically operated, electrically safe-guarded ram supportdevice provides operational safetyand prevents unintentional move-ments of the ram. The ram may belocked in its top position, whenwork is being carried out in thetool area. This safety feature isintegrated into the press controlsystem.
Sections of frames of LASCO presses - single piece (right top side) and pre-stressedmulti piece (left).
LASCO-Konzepte...
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LASCO concepts ...
The temperature of the hydraulicfluid is kept constant, even duringperiods of standstill, by a heatingelement integrated in the fluidtank. A separate cooling andfiltration system with its owncirculation pump prevents themaximum temperature from beingexceeded and continuously purifiesthe hydraulic fluid. The actualdegree of filter clogging is shownon the controller’s display.
Local process controllerThe “brain” of every modernmachine tool is its local processcontroller. The controller isconfigured in-house andprogrammed individually for themetal forming machine’s particulartask and the specific needs of theuser.
LASCO’s core competence insoftware programming, coupledwith the design and assembly ofelectronic, electrical andmechatronic components gives usthe flexibility needed to satisfy allfeasible engineering needs. Theprovision of interfaces forintegration in existing processes isjust as much a part of this well-practised philosophy as is the useof master controllers forinterlinked operations.
Hydraulic drive on the press crown - inblock assembly.
With direct drive, the working movementsof the hydraulic press are purely the resultof the drive’s pump capacity. This solutionis chosen when, for example, a specificpower is needed over a long period withonly short breaks occurring in the produc -tion cycle.
Hydraulic accumulator drive stores a part ofthe energy in the hydroaccumulator whichcan be tapped as required. This solution isespecially chosen when, for example, highpeak powers are needed over short periodsand there is sufficient time between peakrequirements to charge up the accumulatoragain.
Decisive power pack
Press drivesThe capacity and quality of a pressdrive is a vital deciding factor forthe efficiency and economy of themachine, a good reason for us notto outsource such a component.We carry out the complete design,development and production of ourhydraulic drives in-house – indivi -dually customised for each machine.
Direct drive,hydraulic accumulator drive, and combinationsDepending on the size andcharacteristics of the press, we usethree basic concepts for hydraulicdrives: direct drive, hydraulicaccumulator drive or acombination of both (pump andaccumulator drive). With thesevariants we can generate pressforces from 1000 kN to 50000 kN.
Preferably, we mount the pressdrive as a block on the presscrown. This has importantadvantages such as access to allthe hydraulic elements andshortest possible length ofhydraulic piping between pump,accumulator and cylinder. Ifrequired, we can supply alternativedesigns when, for example, thereare height problems. In suchcases, the drive can be locatednext to the press.
...im Detail
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… in detail
Customised configuration
LASCO can design controller menu layoutsand display masks to individual customerrequirements.
LASCO UK 500 upstroking compact press for the manufacture of carrier plates.
LASCO’s process and machinecontrollers can offer all thefeatures required by a modernproduction organisation, such as:
Central, product-related settingand evaluation of all machineparameters
Product data administration,optionally with data base link
Production data acquisition
Product tracing
Integration in PPS
Integrated maintenance program
Integrated data logger
We also satisfy specific needs ofusers with the design of humaninterfaces and offer optional,individually customised displaymasks and graphics with menulayouts (in several languages).
Graphic colour displays in thelocal language are used foroperator guidance. Theacquisition, evaluation andrecording of data can take placesimultaneously during machineoperation and interfaced to thecompany network.
Links to customer-specific softwaremodules are possible. Whenneeded, we can integrate phone orInternet-supported remotemaintenance systems.
Efficient interfaces ensure real-time communication withautomation systems, includingthose on an industrial robot basis.A data logger is always integrated,providing archiving of internal andexternal analog and binary signals.
Our controller concepts are localsystems based on bus systems. Asplatforms, we only use hardwarethat satisfies internationalindustrial standards. This providesour customers not only with thepossibility of carrying outadjustments and maintenancethemselves, but also cost-effectivereprogramming and expansionwhen needs change. This is also acontribution to high investmentsecurity.
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MPP series
Servo-hydraulic CNC multi-platen metal powder presses
Adjustable mechanical press stops.Upper ram and die drives.
MPP series multi-platen powder pressunder assembly.
LASCO metal powder presses canoffer the flexibility of hydraulicpresses with the same robustnessand performance known frommechanical presses.
Decades of experience in theconstruction of hydraulic forgingand sizing presses are a guaranteeof press and adapter design thatcan meet all applications:
Generously sized press framesand central dissipation of pressforce ensures maximum rigidityand minimum deformation.
System pressure is kept delibe -rately low at 250 bar to ensureminimum wear of the robustservo-hydraulics during operation.
The LASCO pressing processLASCO metal powder presses areservo-hydraulic multi-plate pressesworking in the range above 2500 KN.
In the basic version they are fittedwith four movable platens, anauxiliary piston in the upper ramand a core rod with press stop. Ifparts of higher complexity andwith up to nine part levels are tobe pressed then the basic versionis extended by one platen each inthe upper and lower adaptersections.
LASCO offers presses with the toolframe integrated in the press (MPP … IR series) and presses
with exchangeable adapters (MPP ... DS series).
Adjustable mechanical press stops– optionally servomotor-driven –ensure precise, reproducible presspositions.
The press allows high variability intool layout because almost all thelower levels can absorb the fullpress force.
The filling shoe is driven via aservo cylinder. The profile ofmotion is freely programmable,over-/under- and contour-filling ispossible.
Electrical controllersA Bosch-Rexroth multiple-axiscontroller and a Simatic S7 PLCworking in parallel control themetal powder presses in the MPPseries. Both controllers and thevisualisation PC are interfaced viaa Profibus DP for fast signalexchange
The axis controller allowssynchronous control of allhydraulic axes including fillingshoe drive with a reproducibleaccuracy of ± 0.01 mm -measuring accuracy ± 0.001 mm.In the basic version, up to 32 axescan be controlled in parallel. Axiscontrol, linear interpolation andoscilloscope functions forvisualisation of setpoint and actualvalues are among the standardfunctions available.
Upper ram
Platen 1 (die)
Platen 2
Platen 3
Press stops
Core rod
Upper auxiliary piston
Platen 4
Schematic of the basic construction of aLASCO multi-platen metal powder press.
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LASCO-Konzepte...MPP series
Basic configuration of the MPP seriesmulti-platen metal powder press.
Operator-guided data entry using the opera-tor panel.
Call-up of status diagrams with the soft key.
ProgrammingProgramming for individual pressroutines is in the form of a clearlydesigned menu technique.Warning limits can be set to avoidunintended settings outsideprocess parameter values.Password protection or a keyswitch protects safety values.
Programming of the press cycle iseffected by entry of data for the
Process reliability and flexibility
part to be pressed. After entry ofdie level sizes and thecompaction ratio the controlsequence is generated by thecontrol system automaticallyand the operator can enterfine settings for anysubsequent optimisationneeded. All input data areshown both numerically andgraphically in the form of asequence diagram.
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these decades of experience, tooffer its customers completepowder forging production linesfrom a single source.
The hydraulic metal powder pressesin the MPP series are best suitedfor the production of the preform.The die and adapter technology isdetermined by the complexity ofthe component and the degree ofcloseness to the geometry of thefinished part.
The heart of the powder forgingline is the forging press. Dependingon the technology and the requiredoutput, the forging machine iseither a hydraulic press from theKPS series or a screw press fromthe SPR/SPP series. Both modelspossess typical features that suitthem to the tough forgingenvironment.
The forging presses are comple -men ted by adapter systems and, ifneeded, they are fitted with quick-change devices and die coolingand lubricating apparatus.
Powder forging lines
The term powder forging describesa forming process that combinesprocess sequences in sinteringtechnology with subsequent hotforming. This process has beensteadily gaining in importance forseveral years now. Near netshapecomponent parts, with the samemechanical strength as pyrometal -lurgically produced components,are possible.
A preform produced powder-metallurgically by pressing andsintering shows to a large degreethe contours of the final product.Subsequent hot-axial compactionis carried out on a forging press ata temperature of ca. 1100 °C. Thepowder-forged part is produceddirectly from the heat of sinteringor by previous inductive heating ina closed die. In this “forgingprocess”, densities of 96% to99% of theoretical density areachieved.
LASCO counts among the pioneersof powder forging technology andis in the position, on account of
Maximum efficiency...
Examples of powder-forged sintered parts.
Powder forging of synchroniser rings.
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LASCO-Konzepte...Powder forging lines
LASCO’s automation and controltechnology combines metal powderpresses, sinter furnaces andforging presses into a fullyautomated powder forgingproduction line.
The automation technology isdivided into automation betweenmetal powder presses andsintering furnace and automationbetween the sintering furnaceoutput and forging press, includingpress unloading. Specially adaptedindustrial robots are used formanipulation or, as in the case ofsintering furnace discharge needsa special servomotor-driven linearaxis with a water-cooled gripper isused.
...in series production
Automation technology used forpowder forging:
Press-loading and -unloadingrobots with special grippers
Palettising robots for loading thesintering furnace
Weighing and control systems
Image processing systems forpart recognition and orientation
Sintering-furnace unloadingsystems with special water -cooled grippers
All machine parts are linked forcontrol purposes by a mastercontroller that communicates withthe individual machinecomponents via a fast bus system.
Layout of a fully automated powder forgingline.
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KP series
Hydraulic sizing presses
With the aid of sinteringtechniques, precision parts can beproduced with optimal use ofmaterial. Subsequent sizing afterthe sintering process often allowsthe production of near netshapeparts.
Because of their flexible mode ofoperation, hydraulic presses areeminently suited to such a sizingprocess. In contrast to mechanicalpresses with their fixed operationalsequence, they have the advantagethat all operational sequences canbe freely programmed.
Depending on press size and taskdefinition, LASCO’s sizing pressesare designed with single piecepress frames in stress-relievedwelded or in multipiece pre-stressed construction. The highguideway precision required isachieved with a long ram inconjunction with compoundbronze/steel guideway pairs withadjustable clearance.
The design of the hydraulic driveand the control system isdependent on the complexity of
the parts to be sized and theadapter technology used.
The upper and lower rams havehigh-resolution measuring systems.Optionally, the hydraulic axes canbe freely positioned by a positio -ning control system to an accuracyof ± 0.01 mm.
In addition to upper and lower rams,supplementary hydraulic axes canbe integrated in the bottom plateand/or in the press slide.Additional hydrau lic lines cancontrol auxi liary functions in thesizing adapter.
Quick-change systems for fastadapter exchange are available.Adapter clamping in the press andinsertion or removal from the pressare hydraulically assisted usingrollers.
In connection with the LASCOautomation and control techniquethe calibrating presses of the KPseries turn to automatic sizing lines.
For this purpose, the parts to besized are – in a first step - fed to
Sizing press KP
LoadingSprayingSizingDischarge
Unloading device
Image recognition Rotary plate
Transfer manipulator
an orientating station eithermanually or e. g. via pallet storageautomatically. Orientation of theparts is carried out with a rotarytable or an x-y-table, supported byan image recognition system. Afreely programmable transfermanipulator charges the pressincrementally.
Besides the sizing station itselflubricating and/or chamferingstations can be integrated.
The LASCO automation technique forsizing presses comprises:
Press loading and unloadingsystems
Part orientating stations
Lubricating systems
Chamfering stations
Master control for the press line
Palletising and storage systems
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LASCO-Konzepte...
Sintered parts of highest accuracy
KP series
Umfassender ServiceLASCO’s added value
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Comprehensive service
Our experienced experts design allthe components of a productionline that have a decisive effect onproduct quality in-house. Becauseof the flexibility and fast decision-making capabilities of a medium-sized company it is possible toreact comprehensively tocustomers´ needs and to offer
LASCO’s workforce, working together ininterdisciplinary teams, will find the opti-mal solution to your forming requirements.
Experts in sales, design, production, assem-bly and service make it possible for LASCOto react flexibly and comprehensively to theneeds of its customers.
perfectly harmonised solutionsfrom a single source.
Complemented by our personalpresence around the globe, LASCOcan offer its customers servicesthat have set standards in theworld market.
Perfectly harmonized solutions from a single source
www.lasco.com
Head office:LASCO Umformtechnik GmbHHahnweg 13996450 COBURGDEUTSCHLANDPhone +49 9561 642-0Fax +49 9561 642-333E-Mail [email protected] www.lasco.com
LASCO FRANCEMonsieur Thierry Lebailly1, allée des Cèdres78860 SAINT NOM LA BRETÈCHEFRANCEPhone +33 1 3080-0528 Fax +33 1 3080-0584 E-Mail [email protected]
LASCO USALASCO Engineering Services L.L.C.1111 Bellevue AvenueDETROIT, MI 48207USAPhone +1 313 579 1100Fax +1 313 579 2674E-Mail [email protected] www.lascoUSA.com
LASCO CHINABeijing Office5 Xisanhuan Beilu100089 BEIJINGP.R. CHINAPhone +86 10 6873 1775Fax +86 10 6873 1052E-Mail [email protected]
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