LaserStar T plus - Bego USA

BEGO is an offi cial co-partner
of the German Olympic teams for
Torino 2006 and Beijing 2008
LaserStar T plus
LaserStar T plus – The new power desktop laser by BEGO
Following, a summary of the highlights:
Well designed appealing equipment concept in proven housing for ergonomic
fatigue-free work
Welding depth and welding spot diameter can be determined
individually with the help of the variable spot diameter
(0.3 – 2.3 mm)
The maximum pulse energy is 50 Joule thus placing the
unit in the power range of some other ”big” standard
devices. A very high impulse frequency is reached with
the nominal power of 40 Watts
The welding chamber is equipped with one flexible
and one fixed inert gas nozzle to prevent oxygen in
the welding area as well as with a cooling air nozzle
which is quite useful for demanding applications
A welding parameter table with the key specifications
for material and indication specific welding
is stored – together with voltage, pulse length, pulse
frequency and focus diameter – in the electronic
memory of the LaserStar T plus. All parameter sets
can also be overwritten individually
Using 3 easy to operate joysticks in the welding chamber,
the welding parameters can be quickly adapted to changing
indications
4 proven pulse shapes can be invoked for demanding joint
qualities and material specific standardization
Additional input of operating and service functions can be entered via an
external touchpad keyboard following the BEGO standard layout.
A display provides information on the parameters set
Internal water cooling with indication of the water level. The filling of the cooling
water is done from the outside eliminating the need for opening the unit

LaserStar T plus
Even more power in
the desktop format –
the new LaserStar T plus
The success story of the LaserStar T
basically offered itself to be continued.
In doing so, we did not merely improve
some small details but clearly enhanced
the convenience and performance features.
The ‘plus’ of this successor model
stands for more power and more options
to set individual welding parameters.
The proven housing of the unit with the
already typical BEGO design has been
retained just as the intuitive user interface.
This allows the dental technician
to work fatigue-free even for prolonged
periods.
Details of the innovations and
further developments
With 50 Joule, the pulse energy lies in
a power range already claimed by ”big
floor units” with higher price tags. The
high energy output referred to provides
more than sufficient reserves for all welding
jobs occurring in the dental practice.
The nominal power of 40 Watts allows
for a high impulse frequency eliminating
extended idle times when welding longer
welds.
The variable spot diameter can be varied
in the range between 0.3 and 2.3 mm.
The preset welding parameters – consisting
of focus diameter, charge voltage,
impulse time and, last not least, the
material to be worked on – determine the
welding spot diameter on the workpiece.
To minimize workpiece tensions – as
they necessarily occur during welding – it
may be advisable to introduce the preset
energy amount incrementally into the
workpiece and to take material specific
conditions into account. For this purpose,
4 predefined pulse shapes are available
in the LaserStart T plus which can be
selected in addition to the preset welding
parameter set.
10 parameter sets can be stored in the
data memory of the LaserStar T plus;
they can be invoked either through the
external touchpad keyboard or in the interior
of the welding chamber using the joysticks.
All parameter sets predefined by
BEGO and stored in the data memory can
be individually overwritten and stored.
How much power does a laser
require
The energy demand for laser welding
tasks depends on the reflection behavior
and the thermal conductivity of an
alloy. The geometry of the workpieces
to be welded also plays a role in determining
the welding parameters to be
set. Because of the very low degree of
reflection and the low thermal conductivity,
titanium, for instance, requires very
little energy. By contrast, Au-based or
Ag-based alloys require significantly
more energy. For the individually defined
welding technology – such as deep penetration
welding or welding with welding
filler materials of the same kind – the
LaserStar T plus meets all requirements,
including alloys with a very high energy
demand.
The welding energy can be regulated in
the interior or through the external
touchpad keyboard in regard to impulse
duration, charge voltage, welding spot
diameter and the pulse shape of the laser.
All functions at a glance: Changes in parameters
are possible even in the welding chamber
To reach a perfect joint, the prevention of
oxide formation in the weld is imperative.
This is achieved by covering the welding
point with a high-quality argon inert
gas with a purity of 4.6 or greater. The
fixed inert gas nozzle provides the coverage
of the welding area centrally above
the welding spot; in addition, the flexible
adjustable inert gas nozzle can protect
a welding spot in a difficult location or it
may provide protection below the object
when welding through with an open weld.
To prevent unpleasant workpiece overheating
in case of longer welds, the
articulated air jet can provide cooling
during the joining process.
The ergonomic overall concept
enables fatigue-free concentrated work
Hand rests, vertically adjustable

Simple to operate, easy to
be installed and particularly
service-friendly
Connecting the LaserStar T plus in the
laboratory is not at all complicated.
A 230 V connection with regular fuse protection
is sufficient; the dimensions
of the laser with a depth of 60 cm match
the standards of laboratory tables.
The LaserStar T plus can thus be hooked
up directly at the workplace; to remove
emissions caused by the welding process,
the exhaust system BEGO Ventus – developed
especially for this purpose – can be
connected to the fitting routed out of the
welding chamber.
An integrated heat exchanger always
ensures the proper operating temperature
even during demanding applications. The
cooling water level can be read at any
time at the external level indicator without
requiring elaborate service activities. At
this point, the initial cooling water is filled
in prior to the start-up thereby avoiding
interference with the device.
Modern joint technology
Joint technology by welding has had such
an impact over a period of only the past
few years because welded connections
provide a maximum degree of strength
and biocompatibility. Due to the fusion
of the workpiece areas to be joined
– instead of the flat diffusion of solder
with conventional soldering – a strength
is achieved that reaches, in part, that
of the basic material. If a welding filler
material is necessary for a connection,
materials of the same kind can be used
during welding with the laser welding
unit thereby preventing a negative impact
caused by a variety of different metals in
the oral cavity.
Soldering technology cannot meet this
requirements.
LaserStar T plus –
Design with award potential
The LaserStar T plus has an unmistakable
design based on ergonomic considerations
and allows fatigue-free work even
over extended periods.
The external touchpad keyboard and a
clearly laid out display serve the input of
user and service functions.
Sample applications for welding
with the LaserStar T plus
Non-precious alloy
Example: Wironit ® LA
Deep penetration welding without welding
filler material The break in the tensile test
occurs in the unwelded area of the tension
bar. The strength of the weld thereby
corresponds to that of the basic material.
Break
Precious metal alloy
Example: Bio PontoStar ®
Deep penetration welding without welding
filler materials on the high-gold content
precious metal alloy Bio PontoStar ® .
The tensile strengths achieved here (R m )
– 350 MPa – result in a joint quality
that is beyond any doubt.
Break
Non-precious metal alloys
(Wirobond ® , Wironit ® )
Gold based alloys
(Bio PontoStar ® XL, PlatinLloyd ® )
Palladium based alloys
(BegoPal ® 300)
Standard pulse shapes
incl. titanium
LaserStar T plus – Stored pulse shapes
Joysticks in the welding chamber

Technical data:
LaserStar T plus
Type of laser
Wavelength
Pulse energy
Pulse length
Nominal power
Peak pulse power
Spot size
Memories for welding parameters
Pulse shapes
Microscope magnification
Aiming device
Welding parameters
Inert gas nozzles for argon
Lighting in welding chamber
Welding smoke extraction
Cooling
Rated voltage
Weight
Height
Width
Depth
Depth table rest
Additional materials for laser welding
Nd: YAG
1064 nm
50 Joule
0.5 – 20 ms
40 W
max. 4 KW
0.3 mm bis 2.3 mm
10 – can be overwritten
4 permanently set
15-fold (visible magnification)
Reticle in microscope
with 3 joysticks internally as well as outside
of the welding chamber, adjustable
1 fixed + 1 flexible
2 cold light reflectors, adjustable
Fitting for external extraction,
e.g., BEGO Ventus, integrated
integrated
208 - 240 V, 50/60 Hz
approx. 85 kg
465 mm
640 mm
882 mm
600 mm
The construction, delivery scope and composition are subject to change. Procedural statements and
recommendations are based on our experience and tests and must be considered as approximate values.
Version: 22.02.05.
Availability and accessories: Unit Order-No.
Scope of delivery:
LaserStar T plus 26210
Accessories:
Hand rests, height-adjustable 2 pieces/1 set 15650
Pressure reducer for argon inert gas 1 piece 13380
Cutting table 1 piece 15649
Ventus Filter system for LaserStar T plus 1 piece 26205
Ventus – Suction extraction for LaserStar T plus
Ventus is a filter unit for suction extraction and filtering of welding smoke from
Laserstar T plus. The device is equipped with a preliminary coarse filter and a
main fine filter. The preliminary filter separates the coarse particles, then the
welding smoke is fed through the fine filter, where the last fine particles of
dust and smoke are separated. After filtration the clean air is returned to the
workroom via a blow-out screen at the rear. The filter unit conforms with DIN EN
1822-1 and meets the requirements of filter class H 13.
Ventus is equipped with a high-performance high-pressure turbine that can be
set to the flow rate needed for laser welding via continuously variable control.
An automatic filter monitoring system shows the operator when a filter change
is necessary. The change is carried out in an environmentally friendly manner via
the Ventus cover, which is secured with toggle-type fasteners.
Scope of delivery: Ventus 230 V 50/60Hz
1 suction extraction hose NW 32, nominal
diameter 32 mm, 2.5 m with pipe union
1 set of spare filters, consisting of
prelimnary filter and main fine filter
1 set of carbon brushes for high-pressure
turbine
Data:
Rated voltage: 230 V 50/60 Hz
Current consumption:
5.2 A
Flow rate:
0 - 120 m³/h
Noise level:
approx. 65 dB(A)
Dimensions: (H/W/D) 360, 276, 390 mm
Availability: Composition % by mass Thickness/mm Quantity Order No.
Wiroweld (CoCrMo, C-free) Co 63.5, Cr 29, Mo 5.5, Si 1, Mn 1 0.35 2 m 50003
Wiroweld (CoCrMo, C-free) Co 63.5, Cr 29, Mo 5.5, Si 1, Mn 1 0.5 1.5 m 50005
Wiroweld NC (NiCrMo, C-free) Ni 63.8, Cr 22.1, Mo 9.1, Nb 3, Si 1, Fe 1 0.35 approx. 5.5 m 50006
Titan-wire, Grade 2 Ti 100 0.35 approx. 5 m 50008
AuroLloyd ® KF-wire Au 55, Ag 29.2, Pd 10, In 3.5, Zn 1.2, Sn 1, Ru 0.35 approx. 5 g 61153
BegoCer ® G-wire Au 51.5, Pd 38.4, In 8.7, Ga 1.3, Ru 0.35 approx. 5 g 61164
BegoLloyd ® LFC-wire Au 62.8, Ag 25, Pd 5.7, Pt 3, Zn 2.2, In 1.2, Ru 0.35 approx. 5 g 61168
BegoLloyd ® PF-wire Au 62.5, Ag 22, Cu 9.1, Pt 4.3, Zn 1.9, Ir 0.35 approx. 5 g 61156
BegoPal ® 300-wire Pd 75.4, In 6.3, Ag 6.2, Ga 6, Ru 0.35 approx. 5 g 61165
Bio PlatinLloyd ® -wire Au 75.1, Ag 14.8, Pt 7.8, Zn 1.8, Rh, Mn, Mg 0.35 approx. 5 g 61161
Bio PontoStar ® -wire Au 87, Pt 10.6, Zn 1.5, In, Rh, Mn, Ta 0.35 approx. 5 g 61157
Bio PontoStar ® XL-wire Au 86, Pt 11.5, Zn 1.6, Fe, Rh, In 0.35 approx. 5 g 61167
Bio Semador ® H-wire Au 87, Pt 10.6, Zn 1.5, In, Rh, Mn, Ta 0.35 approx. 5 g 61159
InLloyd ® 100-wire Au 78.1, Ag 15.5, Pt 3.9, Zn 2.4, Ir 0.35 approx. 5 g 61163
PlatinLloyd ® 100-wire Au 72, Ag 13.7, Cu 9.8, Pt 3.5, Zn, Ir 0.35 approx. 5 g 61152
PlatinLloyd ® KF-wire Au 72.8, Ag 16.1, Pd 5.7, Zn 3, Pt 2, Mn, Rh 0.35 approx. 5 g 61158
PlatinLloyd ® M-wire Au 70, Ag 11.7, Cu 10, Pt 5, Zn 1.9, Pd 1, In, Re 0.35 approx. 5 g 61155
PontoLloyd ® G-wire Au 84.1, Pt 8.3, Pd 4.8, In 2.7, Ta 0.35 approx. 5 g 61166
PontoLloyd ® P-wire Au 77.5, Pt 9.9, Pd 8.9, In 1.4, Ag 1, Sn, Fe, Cu, Ir 0.35 approx. 5 g 61154
PontoRex ® G-wire Au 70, Ag 13.2, Pt 9.4, Cu 3, Zn 2, In 1.9, Rh, Ir 0.35 approx. 5 g 61151
PontoStar ® G-wire Au 85.6, Pt 11.4, In 2.3, Fe, Rh 0.35 approx. 5 g 61150
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Telefon (+49 - 421) 20 28-0 · Telefax (+49 - 421) 20 28-100 · Internet: http://www.bego.com · E-mail: info@bego.com
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Best.-Nr. 82740 · 1,5m SB 8376/Al · © 2005 by BEGO · March ‘05