Wire Eroding System PA20 Technology to fascinate you:

Technology to fascinate you:
Wire Eroding System
PA20

Exceeding your expectations – precisely
Mitsubishi Electric has once again taken a decisive step pushing forward the boundaries of
eroding technology. With a guaranteed precision of ± 2 µm Mitsubishi's PA20 sets new
standards of performance to give you technical advantage over your competition.
In conjunction with the newly developed digital fine smoothing generator, for the finest
surface finish, the PA20 also offers premium manufacturing quality.
The flexible design of this high precision eroding system enables you to process a wide range
of workpieces at a very high erosion rate. Furthermore, it can significantly increase your
productivity and machining efficiency.
Precision as a standard
Material: 1.2379
Cutting height: 50 mm
Wire electrode: 0.25 mm brass
Precision: ± 0.002 mm
Surface quality: Ra 0.13 mm
Processing time: 1 hour 24 minutes
Production precision
Material: 1.4310
Cutting height: 1.0 mm x 10 (pack)
Wire electrode: 0.10 mm brass
Precision: ± 0.003 mm
Surface quality: Ra 0.18 mm
Processing time: 1 hour 26 minutes
Ultimate precision
Material: Carbide G30
Cutting height: 40 mm
Wire electrode: 0.15 mm brass
Precision: ± 0.002 mm
Surface quality: Ra 0.10 µm
Processing time: 2 hours 12 minutes
Perfect precision
Material: 1.2379
Cutting height: 50 mm and 20 mm
Wire electrode: 0.20 mm brass
Precision: ± 0.002 mm
Surface quality: Ra 0.15 µm
Processing time: 1 hour 34 minutes (stamp),
52 minutes (die)
Manufacturer:
Marquardt GmbH
www.marquardt.de
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Highest precision Productivity Flexibility Efficiency Guaranteed future
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An intelligent, well thought-out concept
All elements of the machine design have been manufactured from high quality materials
and tested extensively for strength and durability.
The machine structure, which is completely temperature stabilised by means of an
integrated cooling system, guarantees the highest precision over long periods.
This is further supported by direct AC drives, re-circulating ball screw and nut resolution of
0.05 µm. In addition the spindle is positioned exactly in the centre of the load in order to ensure
"soft" axis movement. A central oil lubrication system, working tank and sealing system made
of stainless steel and a patented self-cleaning system are only a few of the maintenance
reducing features of the machine.
Thermal encapsulation
A thermally tight encapsulation in conjunction with
active cooling systems, avoids a loss of precision
caused by thermal fluctuation.
Cooler
Filter unit
Cast steel machine design
This classic concept guarantees a long service life
and the solid machine construction easily handles
heavy workpieces.
Direct drive and generously dimensioned spindles
Non-slip clutches, double distance closed loop
measuring systems and intelligent distribution of
dynamic loads ensure long-lasting precision.
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Air conditioned encapsulation Direct shaft drives Easy maintenance High reliability
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AT system for fastest wire
Everything is easier with good ergonomics
The way the PA20 reduces manual machine activities to a minimum will astound you. The ergonomic
design concept not only facilitates daily work, it also contributes to economic operation.
An example of this is the extraordinary accessibility to the working table provided by a generous
swinging hood in conjunction with the automatic vertical sliding door. In addition, the automatic
wire threading system (AT), as well as the maintenance-friendly design of the tank sealing system
also contribute to efficient operation.
Further highlights are the optional features for remote control, maintenance and diagnosis
by means of Telecontact and Telecontrol. Last but not least, the PA20 is “Ready for Automation”.
Threaded in 10 seconds: the AT System.
The combination of a new measuring sensor and
a fast retract function gives you the highest
reliability and ultimate speed, even for smallest
starting holes.
Telecontrol
Teleservice
Operator
Telecontact
Telecontact
Telecontact
Operator 2
Maintenance
Telecontrol: Remote control via PC.
Telecontrol provides remote monitoring and
remote control of the machine from any site.
System optimisation for running processes is also
possible with this service.
Operator 1
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threading Freely accessible working table User-friendliness Telecontrol Telecontact
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64-BIT CNC control
The intelligent control system
The Mitsubishi 64 BIT CNC control system leaves nothing to be desired. In spite of its
complex function, it can be operated quickly and intuitively thanks to its clear menus and
graphic images. The “Graphic Check” function allows you to perform a simulation of your
program in 2D or 3D mode, before or during the processing.
The expert system E.S.P.E.R. automatically determines the correct generator setting from
your data. The “Machining Monitor” shows the current processing status for monitoring
purposes. Furthermore, various evaluation and optimisation programs interactively support
you during the determination of the optimal and most economic machine settings.
This means: you can work with a workshop oriented control system.
3D graphic function
Reliable graphic program check using the improved
graphic and surface display. The speed of the graphic
program check is faster than conventional systems.
Programming
The Graphic User Interface (GUI) makes the PA20
easy to operate, even for beginners. The operating
and programming screens correspond to PC standards.
Expert system E.S.P.E.R.
The “Easy Simple to Program by Expert” system, combined
with the 64-BIT CNC control system, complete the automatic
adaptation and generator setting according to your
process-specific data.
Hybrid Pack Software
This program helps you to achieve optimal machine
settings for individual processes.
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system 3D graphic function Expert system Real time monitoring Optimisation tools
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Machining results to re-define the concept of quality
The latest generator technology combined with precise mechanical engineering ensures
ultimate workpiece quality. This opens up processing capabilities to support developments
in micro technology, e. g. in the optical and medical industries.
The newly developed fine smoothing generator allows the complete monitoring of the process
in the spark gap as well as the optimisation of the generator settings in shortest cycles. This
results in the finest and most homogenous surface structures.
Furthermore, Orbit-Master, SL-Control, and many more process-optimising control functions
ensure the highest amount of reproducible precision.
Digital FS Generator: The newly developed fine smoothing
generator allows a surface finish of up to 0.1 µm Ra.
It can also be used when applied to automation systems.
Material: 1.2379
Cutting height: 30 mm
Wire electrode: 0.25 mm brass
Precision: ± 0.003 mm
Surface quality: Ra 0.12 µm
Processing time: 3 hours 28 minutes
Workpiece height and surface quality
[µmRa] 0,25
0,20
Surface quality
0,15
0,10
0 50 100
Workpiece height in mm
Orbit-Master continuously controls the conditions
in the spark gap and allows geometrical reliability
of the workpiece independent from corner geometries.
Material: ASP23
Cutting height: 25 mm
Wire electrode: 0.07 mm brass
Precision: ± 0.002 mm
Surface quality: Ra 0.10 µm
Processing time: 1 hour 36 minutes
Orbit-Master has been developed to obtain a uniform gap for the electric discharge, independent from
the corner shape. This function decreases the amount of faults of the radial shape and allows for an
improvement in the overall accuracy of the workpieces.
Sample processing
Wire electrode ø 0.2 mm MS
Workpiece 1.2379, 60 mm
Processing time 1 hour 47 minutes 0 0
A:5mm
B:4mm
–1
0
SL-Control ensures the best geometry of the eroding
surface even when machining stepped workpieces.
7µm
3µm
Material: SKD11
Cutting height: 5-20-40-60 mm
Wire electrode: 0.20 mm brass
Precision: ± 0.002 mm
Surface quality: Ra 0.26 µm
Processing time: 57 minutes
Conventionally:
Contour deviation at the step: -3 µm to +7 µm
2µm
1µm
7,0 µm
SL-Control:
Contour deviation at the step: +2 µm or less
-7,0 µm
The HL and LC circuits guarantee the achievement
of true-shape surfaces. This helps to even make dovetail
geometries fit perfectly.
Material: 1.2379
Cutting height: 100 mm
Wire electrode: 0.20 mm brass
Precision: ± 0.003 mm
Surface quality: Ra 0.16 µm
Processing time: 1 hour 47 minutes per workpiece
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Process optimisation Surface qualities of up to Ra 0.1 µm Geometric fidelity of up to 2 µm
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295
A system to perform
Even finer structures, even better surfaces – the PA20 high precision eroding system
helps you to achieve these important market requirements. You can rely on the
proven, long-life quality of Mitsubishi as it satisfies the highest demands with a robust
machine design paired with high-tech components. Machine innovations include the
digital drive system, the intelligent 64 BIT CNC control system as well as the newly
developed temperature stabilisation system and the liquid level monitoring system.
This is why the PA20 is ready to help you gain greater productivity.
Travel paths and workpiece dimensions in mm
y=350
800
z = 300
x=500
1050
Overall dimensions of the machine in mm
2170
2775
2860
Possible wire diameters
from ø 0,3 mm
to ø 0,05 mm
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Ultimate machine accuracy Best surface qualities Universal and flexible
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Machine
Model
PA20
Machine
Filter
unit
Travel path (X/Y/Z) mm 500 x 350 x 300
Travel path (U/V) mm ± 21 x ±21
Conic angle (for workpiece height) ° 10 (100 mm)
Max. workpiece dimensions (W x D X H) mm 1050 x 800 x 295
Max. workpiece weight kg 1500
Table dimensions (W x D) mm 780 x 630
Possible wire diameters mm 0,05 – 0,3
Wire reel reception kg 10
Automatic water jet threading
Max. advance (X/Y) mm/min 1300
Overall dimensions (W x D x H) mm 2210 x 2873 x 2150
Weight of the machine kg 3500
Tank capacity l 750
Filter fineness µm 2
Filter elements 2
Temperature control
Dielectric cooler
Overall dimensions (W x D x H) mm 880 x 2070 x 1565
Weight unfilled kg 400
Generator / control
Model
PA20
Generator
Control
Power unit
of transistor-controlled pulse generator
Generator cabinet
completely tight
Cooling method
Indirect air cooling
Max. working current A 50
Dimensions 550 x 600 x 1650
Weight kg 240
Input interfaces
Keyboard, floppy disk 3,5", RS232C, Ethernet
Colour monitor
10,4" TFT LCD type
Control system
CNC, closed loop
Min. instruction step µm X, Y, Z, U, V ..1/0.1 µm
Min. axis resolution µm 0,05
Max. instruction value mm ± 99999,999
Equipment
Model
PA20
Equipment
Wire station 20 kg
Thin wire device (0,05 mm)
Fine smoothing unit Digital FS
B axis
Automation Robot
Automation Handling
Ethernet interface
Teleservice
Telecontrol
Telecontact
= standard
= retrofittable options
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Technical data
Layout plans
PA20
20 kg
Wire station
1090
2170
2775
230
2630
Lateral view
Front view
Footprint
Working table
Wire collector box
50 50
580
40 10 x 50 =500
50
40
50
50
56-M8
Generator
50
2775
20 kg
Wire
supply
unit
Machine
Filter unit
and
cooler
50
15
430
8 x 50 = 400 50
15
50
Travel path 500
Travel path 350
130 370
130
630
230
2630
Control
(Screen)
50
130 520
130
780
All indications in mm
The dimensions may vary according to equipment.
Model
PA20
Overall power consumption [KVA] 13,5
Overall weight of the installation kg 4200
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Mitsubishi Electric is an Official Supplier
of the BMW Sauber F1 Team
Official technology and application partner of Mitsubishi Electric
Official co-operation partner of Mitsubishi Electric
DIN EN ISO 9001:2000
Zertifikat: 09 100 4371
MITSUBISHI ELECTRIC EUROPE B.V. • German Branch • FA-Mechatronics EDM
Gothaer Str. 8 • 40880 Ratingen • Phone +49 - (0)2102 - 486 - 6120 • Fax: +49 - (0)2102 - 486 - 7090
edm.sales@meg.mee.com • www.mitsubishi-edm.de
Specifications subject to change without notice. E 03.08 - 189 048