Laser Marking 2011 and Beyond

Transcription

Laser Marking 2011 and Beyond
What is a Laser
How does a Laser Work
What Products are being Marked
Why Laser marking is so Popular
© Copyright Datalogic 2011
3 Key Laser components
1. A laser source,- generates the laser beam.
2. A scan head,- deflects the laser beam via
Glavo Controlled mirrors thru the Lens
3. The marking software,- Translates easy
layout capabilities to laser pulses.
How a laser marker works
−
Laser marking is
obtained by
delivering and
focusing a laser
beam on the target
surface by mean of
motorized mirrors
controlled by a
dedicated software.
Software
1. Laser source options
− Laser sources used today for marking span from 3 to 80 Watt of optical power
while the most of the market belongs within the 10 to 30 Watt range.
− Laser technologies may from one producer to others, anyhow the main
established ones are:
Different Wavelengths react with Different Materials
− CO2 - 10,600nm
− DPSS 1,064nm (diode pumped solid state)
− Fiber
1,070nm
− Green
532nm
− UV
355nm
Laser marker
In addition to a laser source of suitable wave length, a marking laser requires three other
mechano-optical components which are: the beam expander, the scanner head , and the
flat-field focusing lens.
Scanner Head
Resonator
Marking Control
Unit/PC
BeamExpander
Laser Control Unit
Lens
LASER SOURCE
A complete solution must include not only suitable laser emission controls, but also beam
shot generation, and trajectory plotting control software.
Scanning Head: Beam deflection
Galvo-motor Y
θ
Galvomotor X
Working
Distance
f
Lens
F-Theta LENS
x= f*θ
Working Field
YX-
X+
Y+
Scanning Head: F-Theta Lenses
Spot diameter
Marking Area
Laser source: Q-switching effect
−
Q-switching enables DPSS
and Fiber lasers to reach
very high peak power
pulses, while CO2 lasers
emits a continuous wave
(CW).
OFF
ON
OFF
10W
100KW
peak
10W
average
Laser source: Wavelengths
−
Laser radiation is generated at different wavelength, depending on the laser source technology, from 180nm up to 10.6um. The
most of the industrial applications belongs to the IR range.
LASER radiation emission window
180nm
10600nm
IR
UV
Visible radiation window
400 nm
FIR
700nm
CO2 10600
Nd:YAG 1064
Nd:YAG Doubled 532
Argon 450-515
Nd:YAG Tripled 355
Excimer 180 -380
Fiber (Yb) 1070
GaAs Diode 808-980
Visible Diode 670
He:Ne 632,8
Marking Software: User interface
− The software is used by the operator to define the marking layout
by mean of a graphical user interface.
− Real-time control of the laser source and galvo head is then
performed by the embedded software running on board the
marking hardware.
−
The software converts the
graphics into vectors
(parallel lines and paths) to
be traced by moving the
mirrors and switching the
laser beam on and off
accordingly.
Marking software: Optical correction
−
The scanning head draws distorted shapes over the target surface because of barrel
distortion effect, so, the software applies a correction algorithm in order to perfectly
compensate.
DISTORTED IMAGE
SOFTWARE CORRECTION
MARKING RESULT
How laser process works
−
The marking is realized by the
portion of the laser radiation
absorbed by the material. Nothing
is added on the material surface,
the laser changes how the
material reflects the light.
v
PROCESS
INCOMING
LASER ENERGY
Ec
Er
REFLECTED
Ea
ABSORBED
Et
TRANSMITTED
Marking technique: Engraving
−
The surface incision is made by rapid fusion and vaporization of the material
with subsequent re-solidification of the edges of the groove. This effect is
achieved by a combination of vaporization, melting and burning processes.
Marking technique: Ablation
− Anodic film, coatings or paint on metals and/or plastic can be easily
vaporized without the need for high heat input, so, without affecting the
underlying material.
Marking technique: Surface modification
− The material surface is altered by the inclusion of gas bubbles
(foaming) or impurities. This effect is achieved by means of a controlled
burning or melting process.
Marking technique: Color change
−
Surface color change due to the oxidization on the metals (annealing), or
photochemical reactions of the molecules of plastics (bleaching), and those of
special color additives mixed into the plastics themselves.
Laser Integration and Safety
− Laser marking equipment is classified as a Class 4
device, according to the IEC 60825 international
standard.
− Laser integrators should implement all the relevant
safety features in order to provide a Class 1 system to
the end user.
− Safety Considerations
− Line Of Sight
Eye protection
− Direct Touch
Protection of digits
− Burn Off
Protection of Lungs/Nose
Off the Shelf Integration
Stand Alone Workstation.
Assembly Line Integration
Laser integration: Automated line
−
Laser marking equipment is also installed onto fully
automated lines where it is requested to mark part
while moving.
−
Together with safety features, the integrator should
implement the automated handling using the
appropriate encoder to deal with moving belt.
Why does the Laser Market continue its fast Growth?
− Salability – marking part numbers and logos on parts
− Liability – Limit liability from recall
− Traceability – Mark and Trace through production process
− FDA – New traceability regulations
− UID – Universal ID Datacode Marking for Military
− GREEN TECHNOLOGY-No toxic inks, additives or waste
Mark & Read Solutions & DPM Project
Support DPM project:
Screening and identification of typical key marking applications in target
industries:
Selection of samples to be provided to DPM project leader
Starting with:
Automotive
Electonics & Solar
Surgical tools
Next: food & pharma
Packaging applications
Tracing applications
Create Package Solution to target Vertical Markets integrating
reading and vision products (e.g.: Medical Tools)
Mark & Read Solutions Examples
Automotive DPM:
Automotive: glass marking
Solar: silicon wafer marking
Healthcare: surgical tools tracing
Surgical tools surface marking
for traceability purposes
Customer Request…
Hospitals and medical environments in general, in addition to demanding accuracy in non-disposable tools
cleaning, look for traceability methods to manage huge amounts of tools. Datamatrix codes can solve this issue, but
marking must not involve any modifications of the metal surface. Also, the marking system must fit strict space
requirements, looking for small footprint in hospital technical departments.
…DLA’s Solution
DLA’s Ulyxe 6W infrared laser marker can easily fit into small marking equipment, and its 1064 nm wavelength
achieves high-contrast 2D marking on tools surface, making them easily readable despite metal reflection. The tools
have subsequently passed through over 1000 sterilization cycles without any significant fading or signs of rusting.
Ulyxe 6W @ 1064 nm
F-theta = 160 mm
2D resolution: 12 mils, 7 mils, 4 mils
MEDICAL
Identification marking on
general-purpose metal keys
Customer Request…
The customer request was to mark short texts and identification logos on the heads of general-purpose keys.
Given the extremely high production rate (5000 pieces/day), the marking time for a single element shouldn’t be
more than 4 seconds.
…DLA’s Solution
To mark short text strings, Ulyxe 6 W @ 1064 nm compact laser marker - with a standard f=160mm lens - is the
perfect solution for both plastic and metal heads in 2 – 3 seconds per piece.
After a later customer request of a fast way to mark complex logos and symbols, we proposed V-Lase 20 W infrared
laser marker as a good-quality marking solution on all materials. Depending on the complexity of the logo, the
marking time varies between 0.5 s and 1 s.
Ulyxe 6 W @1064 nm
F-theta = 160 mm
Marking time = 2 − 3 s
V-Lase 20 W @ 1064 nm
F-theta = 160 mm
Marking time = 0.5 – 1 s
GENERAL IND.
Direct laser marking on silicone cattle tags
GENERAL IND.
Customer Request…
The request was to provide a compact laser solution to mark animal tags in order to serve decentralized service providers
for local laser re-tagging of animals.
The challenge was reducing the marking time down to 10 seconds for the overall animal tag pair (the tag and the round
button) .
…DLA’s Solution
Selecting the appropriate laser and filling parameters enables the Ulyxe 6W compact laser to perform a fast marking with
dark gray contrast on both yellow and orange colored tags. The required marking time is 8 seconds.
With the use of a higher power IR laser source such as V3+ 27W, the cycle time can be pushed down to about 3 seconds
per piece, without any significant loss of marking quality.
Ulyxe 6W @ 1064 nm
V3+ 27 W @ 1064 nm
F-theta =254 mm
F-theta = 254 mm
Marking time: 8 s
Marking time: 3 s
Fast marking on plastic
automotive components
Customer Request…
The customer needed a very fast marking solution on the plastic shell of mechanical actuators for the automotive
industry. Simultaneous marking of several pieces arranged in a planar layout was required. The marking consisted
of alphanumeric strings for traceability purpose.
…DLA’s Solution
DLA’s V-Lase 20 W laser marker can provide excellent contrast by changing the color of the black surface of the
samples. F-theta lens with 420 mm focal length provides a marking area whose size complies with the customer
requirements. The marking time per piece is less than 0.4 seconds.
V-Lase 20W @ 1064 nm
F-theta: 420 mm
Marking time < 0.4 s
AUTOMOTIVE
Engraving on black rubber
automotive valves
Customer Request…
The request was to engrave the product code, a bacth code and the company logo on black rubber valves used in the
automotive industry.
The huge production rate required a very short marking time of 0,2-0,3 seconds.
…DLA’s Solution
Thanks to the “wobble” function, able to mark thick paths in a single passage, a V-Lase 20W equipped with a
standard f=160mm lens perfectly matches the customer requirements.
V-LASE 20W @ 1064nm
F-theta = 160mm
Wobble = 0.15 mm @ 2000 mm/s
Marking time = 0,2s
AUTOMOTIVE
Marking on electrical equipment
to replace inkjet technique
Customer Request…
The customer was looking for an automated solution to replace inkjet marking on the surface of metal covers
for electrical equipment. The total marking area is about 160 x 30 mm. Both text strings and numbers should be
marked, as well as small geometric figures and logos. The cycle time shouldn’t exceed 1 minute.
…DLA’s Solution
DLA’s V-Lase 10 W laser marker can achieve superb grey-on-white contrast and excellent readability of even
the smallest features. Due to the size of the marking area, f-theta lens with 254 mm focal length is equipped. The
time required to mark the complete pattern is approximately 1 minute.
V-Lase 10W @ 1064 nm
F-theta: 254 mm
Marking time: 1 min
ELECTRONICS
Marking of identification
labels on DIN modules
Customer Request…
The request of the customer was to mark identification and traceability labels on the surface of plastic (ABS-PC
blend) covers for electrical equipment. The maximum required pattern size was 60 x 35 mm and the marking
time shouldn’t exceed 10 seconds.
…DLA’s Solution
ZEUX 6 W @ 1064 nm compact laser marker, together with a standard f=160mm lens, perfectly matches the
customer requirements. The cycle times are 1 second and 7 seconds for the front and lateral sides, respectively.
ZEUX 6 W @ 1064nm
F-theta = 160mm
Marking time = 1 – 7 s
ELECTRONICS
Permanent marking on metal
carbide tool inserts
Customer Request…
The customer needed to mark short text strings on small carbide tool machine inserts. The marking had to be
permanent and easy to read, and the required cycle time was 0.5 s or less.
…DLA’s Solution
Both V-Lase 20W and Violino 3+ 27W infrared laser markers are suitable for this kind of application. The higher laser
power delivered to the sample by Violino 3+ allows faster marking. The cycle time needed to mark on the side of each
sample is 400 ms for V-Lase 20W and 150 ms for Violino 3+, respectively.
V-Lase 20W
F-theta = 160 mm
Marking time = 400 ms
Violino 3+ 27W
F-theta = 160 mm
Marking time = 150 ms
METAL WORK
Identifying brass and nickel
plated hydraulic joints
Customer Request…
The customer request was to mark alphanumeric strings on nickel, brass or stainless steel pieces used in
hydraulics. The marked pattern had to be clearly visible and resistant to corrosion.
…DLA’s Solution
DLA’s Violino 3+ 27 W laser marker equipped with a standard f=160mm lens matches the customer requirements.
The cycle time per piece is approximately 5 seconds.
Violino 3+ 27 W @ 1064nm
F-theta = 160mm
Marking time = 5 s
METAL WORK
Identification of stainless steel
machinery tools
Customer Request…
The request of the customer was marking the company logo and a set of symbols and text strings onto
cylindrical steel tools. The samples had to be mounted on a rotating device in order to write quickly on a large
portion of the surface. The marking time (40 seconds maximum) was of great interest for this application.
…DLA’s Solution
Violino 3+ 27 W @ 1064 nm laser marker, equipped with an f=254 mm lens, meets the customer requirements.
The amount of time needed to mark the whole pattern is 35 seconds for the steel samples and 3 seconds for the
black-colored nickel-plated tools.
Violino 3+ 27 W
F-theta = 254 mm
Marking time 3 − 35 s
METAL WORK
Marking on cylindrical plastic
valves using a ring divider
Customer Request…
The request was to mark alphanumeric strings and small logos on the outer surface of cylindrical plastic (PBT/GF35)
valves. During the productive process, the pieces were mounted on a rotating device.
…DLA’s Solution
DLA’s Violino 3+ 27 W @ 1064 nm equipped with a standard f=160 mm lens perfectly meets the customer
requirements. A ring divider is used in order to mark on the cylindrical surface, whose diameter measures 32 mm.
The amount of time required to achieve good contrast is about 3.2 seconds.
Violino 3+ @ 1064nm
F-theta = 160mm
Marking time = 3.2 s
AUTOMOTIVE
Deep engraving of numeric codes on car engine parts
AUTOMOTIVE
Customer Request…
The customer wanted to replace a pin marking system with a direct part marking technique. A numeric string and
an omega symbol had to be engraved "as deep as possible” on an aluminium car engine part.
…DLA’s Solution
Saving 15% of the allowed max cycle time, DLA's Sagitta 60W @ 1064 nm − equipped with an f=100 mm lens − is
able to grant good-quality, clean and deep engraving.
The reduced maintenance requirements (broken pins to change, lubrication of moving parts, etc...) and the possibility
to change layouts just by typing on a PC keyboard or receiving data from a server, are some of the pluses offered by a
laser system, when compared to a pin marking system.
Sagitta 60W @ 1064 nm
F-theta=100mm
Marking time ~ 8.5 s
34
Annealing on stainless steel
immersion pump body
Customer Request…
The customer − a manufacturer of immersion pumps − requested to mark the information plate directly on the pump
body.
The expected production rate required a marking time within approximately 30 seconds.
…DLA’s Solution
DLA’s Sagitta 60 W, together with an f=254 lens, is suitable to match the customer requirements. The marking process only
changes the color of the surface without affecting its resistance to corrosion.
Sagitta 60 W @ 1064 nm
F-theta = 254 mm
Marking time: ~ 20 s
GENERAL IND.
Datamatrix marking on silicon
wafers for PV industry
Customer Request…
Manufacturers of photovoltaic solar cells deal with polycrystalline silicon, which is highly sensitive to mechanical
stress. Traceability data must be hidden in corners and involve as little surface as possible. Laser direct marking is the
solution to increase productivity and throughput. It’s possible to mark 1x1 mm 14x14 dots 2D codes.
…DLA’s Solution
DLA’s Green-Lase 10W @ 532 nm laser marker grants both high speed and good quality. The 160 mm f-theta lens
covers up to 100 x 100 mm marking area.
Green-Lase 10W @ 532 nm
f-theta = 160 mm
© Copyright
© Copyright
Datalogic
Datalogic
2007-2009
2011
SOLAR
Traceability of black nylon
automotive components
Customer Request…
Direct laser marking technique to replace inkjet printers.
2D code and alphanumeric text traceability on black thermoplastic polyamide (Nylon Zytel 0G/33) used as electric
component’s body in the automotive industry.
…DLA’s Solution
Quite good brown-on-black contrast on Nylon Zytel 0G/33 can be obtained with Green-Lase @ 532 nm laser marker. All
the 2D codes are easily readable with DLA’s Matrix200 code reader.
Depending on the font size and the graphic complexity, traceability marking requires less than 2 seconds:
- 2D code 5x5 mm;
- 17 alphanumeric characters, 1.6 mm high.
Green-Lase @ 532 nm
f-theta = 160 mm
Marking time < 2 s
AUTOMOTIVE
Traceability marking on “hard
to mark” medical plastic
Customer Request…
UHMWPE (ultra-high molecular weight polyethylene) is a very important material in medical applications, like joint
replacement. Serial and lot numbers are required in production: infrared lasers aren’t effective because the surface of the
material reacts irregularly. The marking has to be readable, permanent and non-dangerous for the human health.
…DLA’s Solution
DLA’s Green-Lase 10W @ 532 nm laser can effectively mark UHMWPE in human readable applications. Small bursts are
produced by the laser spot, resulting in a nice visual effect. It is demonstrated that the marking process doesn’t affect the
mechanical properties (namely, the resistance to tensile stress) of the samples.
A 160 mm f-theta lens covers up to 100 x 100 mm marking area.
GreenLase 10W @ 532 nm
F-theta = 160 mm
Marking time: n. a.
MEDICAL
Car window traceability using
datamatrix codes
Customer Request…
The customer requested a laser marking solution able to grant effective traceability of car window glasses (floating glass)
by using datamatrix codes. Perfect readability of the code through the entire production process (including temper),
together with unaffected mechanical properties of the glass, are fundamental requirements. The customer asked us to
find the best solution choosing among a CO2 laser, a green laser and an UV laser. The maximum amount of marking time
was 5 seconds.
…DLA’s Solution
DLA’s UV-Lase was found to be the best marking solution to meet the customer requirements. Unlike infrared and green
light, UV light marks the datamatrix inside the glass, thus making it permanent through all the following treatments.
Moreover, the glass does not lose its mechanical characteristics (e.g. resistance to tensile stress).
UV-Lase 3 W @ 355 nm
F-theta = 100 mm
marking time < 5 s
AUTOMOTIVE
Glass Substrate Traceability
on Solar Cells
Customer Request…
Traceability through datamatrix codes, alphanumerical codes, or both, is highly recommended in solar cells glass
substrate production. But laser marking on one side of the panel might affect also its opposite side, where a very thin TIN
coating is applied. Thus accurate and selective laser marking is required.
…DLA’s Solution
When DLA’s UV-Lase laser marker is adjusted to focus on the uncoated side, there is no effect on the opposite side of the
thin glass substrate.
Since traceability marking requires small sizes, a marking speed between 50 mm/s and 150 mm/s provides high
throughput, depending on fonts and graphics.
UV-Lase 3 W @ 355 nm
F-theta 100 mm
SOLAR
Color change traceability code on painted aircraft parts
AERONAUTICS
Customer Request…
Replacing the inkjet technology with a laser marking solution to mark a visible logo and alphanumeric codes on
aircraft components.
It is a critical application because the laser beam has to interact only with the paint (a special protective ceramic-based
paint), without damaging the sample surface: therefore, only a change of color is required. This condition must be
fulfilled; indeed damaging or removing the protective paint is dangerous for these kind of aeronautic components.
The customer needed a 100 x 100 mm marking field.
…DLA’s Solution
We obtain good results with our Violino U.V. @ 355 nm laser marker .
This kind of radiation allows to change the color of the protective paint without removing it.
A power of 300 mW is enough to reach these amazing results:
- Permanent and untouchable marking
- Cold process marking (no heat generated by laser beam)
- 100x100mm marking field (focal f=160mm)
- All advantages replacing the inkjet technology
- High-speed marking (90 s for 0.01 mm-filled pattern)
- Excellent contrast (barcodes or 2D-Codes easy to read)
Marking on fly on adhesive labels
for pharmaceutical industry
Customer Request…
The customer was seeking a way to obtain thermal marking on adhesive labels stuck to plastic test tubes (Ø 12
mm). The required pattern was an alphanumeric string (patient name and identification number) and a bar code, to
allow quick traceability. Additionally, marking on fly technique (30 mm/s) had to be used, so the ideal time to mark
the complete pattern was 1 second.
…DLA’s Solution
EOX @ 10.6 μm CO2 laser marker, equipped with an f=100mm lens, is able to mark the desired pattern with
excellent black-on-white contrast. The labels are extremely sensitive to laser light, thus allowing very fast
thermal marking. All the barcodes can be read with conventional code readers.
EOX @ 10.6 μm
F-theta = 100 mm
Marking time ~ 0.8 s
PACKAGING
Marking of expiration date on
cardboard package
Customer Request…
The customer wanted to mark the expiration date and the batch code onto cardboard used in food packaging. The
date string had to be 5 mm high, while the code 2.5 mm high. Additionally, the customer requested that the marking be
performed at a linear speed between 40 m/min and 80 m/min, which gives a maximum marking time between 185
ms and 100 ms, respectively.
…DLA’s Solution
EOX 30 W @ 10.6 μm CO2 laser marker, equipped with an f=100mm lens, is capable of marking the desired
information in single-line font, resulting in excellent readability on differently colored cardboard. The amount of time to
mark the whole text is 100 ms, thus allowing a line speed of about 80 m/min.
EOX 30 W @ 10.6 μm
F-theta = 100 mm
Marking time: < 100 ms
PACKAGING
Traceability marking on
aluminum car pistons
Customer Request…
The request was to mark a single 5x5mm (16x16 modules) datamatrix code for WIP traceability on piston side, then to
mark a 10x10mm (18x18 modules) datamatrix code on piston head together with a logo, human readable code and the
company logo within 3.5 seconds.
…DLA’s Solution
Despite the challenging request of marking such a huge amount of information in a very short time, the request is perfectly
matched by a 27 W air cooled Violino 3+ laser, equipped with a 254mm f-theta lens.
Violino 3+ 27W @ 1064nm
F-theta = 254 mm
AUTOMOTIVE
Traceability on automotive steel components
AUTOMOTIVE
Customer Request…
Direct laser marking on steel for car industry metal parts. Surface marking should be performed within 10 seconds:
- 2D code: 31 characters, 10x10mm
- alphanumeric string: 10 characters, 2.5 mm high
The marking has to resists to a wet polishing process removing the oily protection film.
…DLA’s Solution
The customer request was exactly matched with a configuration composed of a Violino 3+ and a 160mm f-theta lens,
achieving a dark contrast. The datamatrix is easily readable with a Matrix 400 code reader.
F-theta = 160 mm
Marking time = 10 s
© Copyright
© Copyright
Datalogic
Datalogic
2007-2009
2011
Identify black PA66 car
devices
Customer Request…
Marking black PA66GF30 car devices is a quite common request.
In this case the request was to grant a quite high production rate with a marking time within 0,4s to compete against
Keyence 30W fiber laser (MD-F3000W).
…DLA’s Solution
Thanks to the excellent beam quality provided by all the V-LASE laser models expressively tied to the marking
applications a V-LASE 20W equipped with a quite long F=420mm f-theta lens perfectly matched the requested marking
time providing a bright white contrast.
V-LASE 20W @ 1064nm
F-theta = 420 mm
Marking time = 0,4 s
AUTOMOTIVE
Traceability on automotive
plastic components
Customer Request…
Direct laser marking to replace of inkjet printers:
2DCode and alphanumeric test traceability on Black Thermoplastic Polyamide (Nylon Zytel FE54/22) used as electric
component’s body in Car Industry.
…DLA’s Solution
Very good contrasted white marking:
2dcode easy readable by Datalogic matrix2000.
Traceability marking, according to fonts and graphics, requires less than 2sec marking time:
-2Dcode 18x18 5x5mm
-17 alphanumeric characters, 1.6mm highs.
Green-Lase , 532 nm
F-theta 160 mm
Marking time: n.a.
AUTOMOTIVE
Matrix and Bar Codes on
Polypropylene car devices
AUTOMOTIVE
Customer Request…
The Customer needs to write different codes (barcode, datamatrix code, alphanumeric code and manufacturer Logo) on a
black polypropylene material (PP GF30) obtaining good read rate.
These parts are assembled on an automatic line therefore the marking time have to be as short as possible (max.6 sec. each
piece).
…DLA’s Solution
This kind of material reacts with a very good contrast (white color) at low frequency (8000 Hz-10000Hz) and with a low
laser power. For this reason why the best laser source to this application is V-Lase 10W marker (IR@1064 nm) with a
160mm lens.
In this application the laser marker replaced the old inkjet technology with a lot of advantages:
1.Permanent marking
2.Reduced maintenance costs
3.Cleaner environment
4.No paint-disposal costs
Barcode marking on PV
panels aluminium frame
Customer Request…
Solar panels are manufactured on a fully automatic line. Data have been laser-marked on the aluminum frame profile,
black and silver aluminum alloy anodized. After lasering the laser marking have been verified by a barcode reader in
order to check the result.
…DLA’s Solution
DLA’s Zeux laser marker, 1064 nm wavelength, achieves both speed and quality. 160 mm F-theta lens cover up to
100 mm marking area.
Zeux @ 1064 nm
F-theta 160 mm
Marking time: ~ 20 s
SOLAR
Coding of Heating Elements for
Major Domestic Appliances GENERAL IND.
Customer Request…
A leading company in Major Domestic Appliances and Industrial Applications requested to mark on a metal frame of the
heating element a readable code together with several functional information.A key request was the longevity of the marks –
meaning that the marking must resist for a long time to the corrosion and still be readable.
Marking time for all the task should be less then 4 seconds each piece in order to grant the expected productivity.
…DLA’s Solution
The expected results are achieved by using a V-Lase 20W completed by the standard focal lens of 160mm length.
The brown contrast text strings are clearly visible while marked in less then 3.6 seconds.
The markings resisted to corrosion tests performed by the customer simulate the complete life cycle of the product.
V-Lase 20 @ 1064nm
F-theta = 160(S) mm
Marking time < 3.6 s
Metal engraving on security
door keys
Customer Request…
The request was to identify the metal door keys by engraving a human readable code and optionally a
barcode on the key body.
The engraving depth should be enough to grant marking permanency after further polishing processes the
keys was undergoing while the marking time must not exceed 3 seconds.
…DLA’s Solution
Several runs was executed to meet the customer requirements that finally was meet by using a 27W
Violino 3+ equipped with a 63mm shorter f-theta lens.
F-theta = 63 mm
Engraving time = 3 s
GENERAL IND.
Color change on plastic
immersion pump body
Customer Request…
The customer manufacturing immersion pump was requesting to mark the information plate directly on the pump
plastic body.
The expected production rate required a marking time within approximately 30 seconds.
…DLA’s Solution
The orange colored PA66GF30 immediately appeared to be very “hard to mark” by using standard infra red laser
sources while Violino UV running at 355nm easily performed better then expected marking with a suitable contrast.
Violino UV 3.5 W @ 355 nm
F-theta = 160 mm
Marking time less than 15 s
GENERAL IND.
Plastic floating ball pen refill
laser personalization
GENERAL IND.
Customer Request…
The request was to provide a marking solution for ball point pen refills in order to permanently print on it several information (such
as the company logo, the product code, etc) helping anti-counterfeiting.
Marking time was a challenging constraint, to provide the expected productivity rate, to be kept under 0.5 seconds each.
…DLA’s Solution
The Violino 3+ laser equipped with an f-theta lens of 254mm was selected to perform a fast marking with perfectly readable gray
contrast within the expected cycle time.
F-theta = 254(S)mm
Marking time less then 0.4s
Color Change on Medical
Equipments
Customer Request…
Internal use plastic medical equipments marking must be permanent and smooth. No material leakage or friction is
allowed inside the human body. Moreover, small size is an important requirement too.
Urinary catheters represent such a case. Customer’s request is to mark a readable scale, made of ticks and numbers, on
these 3 mm diameter pellethane™ tubes. Material color is white, so dark contrast is what we’re looking for, without any
surface foaming or burning.
…DLA’s Solution
DLA’s UV-Lase laser marker, with its 355 nm wavelength, is able to change the surface color from white to grey.
Scanhead and 160 mm. F-theta lens covers up to 110 mm marking areas.
UV-Lase 3W @ 355 nm
F-theta 160 mm
Marking time: n.a.
MEDICAL
Logo and text marking on
metal medical implants
Customer Request…
CoCrMo and AISI 630 alloies are largely used in medical implants. When customization or traceabilty marking is needed,
after the laser process, the part must undergo special treatments and the surface must be not engraved. Nevertheless, the
marking must remain visible.
…DLA’s Solution
DLA’s VLase 10W laser marker, 1064 nm wavelength, can achieve readable and treatment resistant marking, without
exposing the surface to oxydization. Here’s a knee part implant case and a generical part case.
160 mm F-theta lens cover up to 100 mm marking area.
VLase 10W @ 1064 nm
F-theta 160 mm
Marking time: n. a.
MEDICAL
Marking on single-use plastic baby bottles using additives
PACKAGING
Customer Request…
Our partner's customer, a main packaging company, is planning to change ink-jet marking on the bottles with laser.
Our goal is to obtain the best (human-)readable marking on the bottle in the max cycle time of 1"60.
…DLA’s Solution
Earning roughly the 10% on the max cycle time, the solution proposed is the following:
Sagitta 60W + f-theta 330mm
This configuration seems to be the best to join both the low cycle time and the well visible marking. Another important issue
is the very light burning on the bottles' surface.
Laser soldering of power
electronics contacts
Customer Request…
A new soldering process to replace manual positioning and oven-welding.
Copper Top-pin or Pack-pin covered with a silver-tin alloy must be soldered on a DBC substrates (Direct Bond Copper),
composed of a ceramic insulator, Al2O3 onto which pure copper metal is attached by a high temperature eutectic melting
process and thus tightly and firmly joined to the ceramic.
DBC High thermal conductivity prevents any contact based soldering techniques.
…DLA’s Solution
DLA’s KUBO 100 laser welding system can quickly and easily solder the pins because the high peck power overcomes
the thermal conductivity effects.
KUBO 100 , 100W @ 1064 nm
Fiber delivery
Finding Laser Marking Opportunities
Questions to ask your prospective customer?
-Do you Permanently Mark Parts or Assemblies that you manufacture?
-Are you using other marking techniques like PinStamp, InkJet, Label?
-Have you bought Laser Marking machines in the past?
-What is the more important criteria, Capital Cost or Total Cost of Ownership?
-Have you reviewed Laser Markers in the Past? If so, why did you not
purchase?
Competition
Keyence, Sunx, Trumpf and Rofin
-Good products, very expensiveLaser Marking Integrators
- Usually Very small companies, making
“Clone Lasers” out of many dissimilar parts.
Laser Integration Options
-Customer Integration
-Customer Recommends Integrator
-Datalogic Recommends Integrator
Marking Opportunity Sale Process
Identify Opportunity
Gather Samples to be Marked
Fill out Application Checklist
Test Product to be Marked in-house or in Cincinnati
at Datalogic Office
Present results and proposal to Customer
The END
Thank you for your time and attention.
Michael Indiano
Datalogic Automation
Laser Marking Business Development Manager N/A
513-444-8946

Laser Marking 2011 and Beyond

Transcription

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