Laser coding

1
???????? ??????????Laser coding

• Sascha Benke
• Kiev, April 25th 2007

2
??? ??? ?????????How does it work?
3
??? ??? ????????? How does it work?

• ?????? ?????????? ???????? ?????, ?????????? ??
  ???????? ??????? ????the marking information is
  generated by moving the laser beam over the
  product like a pen
• ??? ???????????? ?????????????????
  ?????????moving is accomplished by turnable
  (galvo) mirrors
• ????????? ?????? ?, ?????????????, ???????????
  ?????????? ????????? ????????? ??????????the
  galvo mirror turning and therefore the complete
  marking information is generated and controlled
  by the laser system controller
• ???????? ??? ????? ?????????? ????????????
  ??????? ??????? ??????the laser beam can cover
  a certain area, the marking-field
• ??????????? ????? ??? ??????????, ??? ?
  ??????????? ????????marks moving and stationary
  products

??????? ?????? galvo motors
??????? ?????????? ???? ?? ??? X galvo mirror
x-axis
??????? ?????????? ???? ?? ??? Y galvo mirro
y-axis
?????scan lens
??????? product
??????? ??????marking-field
4
??? ??? ????????? How does it work?

• ??? ???????? ?????? ? ????????Have a look at
  these picture, here are examples of a galvo drive
  with a mirror

5
????? ?????????? ????? ??????????? What marking
content can I code?

• ????????? ????, ??? ???????? ??? ???????????
  ????????? ??????, ????? ?????????? ?????
  ????????? ???? ??????????? ??????????, ???????
  ?????????? ? ??????? ??????. ???? ?????????
  ????????? ???????? ??????????Since the laser
  beam is controlled by moving the mirrors, we can
  literally code any text or graphics that we can
  display in the marking-field. Here are a few
  examples

6
??? ?? ????? ??????????? ???????? Can I code
everything with lasers?

• ????? ??? ??????? ?? ????????? ????????,
  ?????????? ???? ?????? ? ??????????? ??????????
  ??????. ???? ???????? ???? ????????? ????????
  ??????????, ?? ??????? ???????? ????????
  ??????????
• The clear answer is it dependson the product
  material, the selected laser type and the
  application requirements. Here is a small list
  that shows an excerpt of possible materials
• ???????
• ??????
• ??????
• ???????? ?????? (????????????? ????????,
  ????????? ??????)
• ??????
• ????????
• ???????
• ????????? ????????????
• ??????

7
?????? ?????? ???????? ???????????Why laser
marking?
8
?????? ?????? ???????? ??????????? Why laser
marking?

• ??????? ???????? ? ???????????????? ?????????
  ???????? ???????? ?????? ????? ?????????
  ?????????????????? ? ?????????? ??????????.high
  marking quality reproducibility due to the
  contour sharpness of the process lasers generate
  a high quality and by that aesthetic code on the
  product.

?????? ?????????? ?? ???????? ???????? Example
coding of paper label
9
?????? ?????? ???????? ??????????? Why laser
marking?

• ????????? ??? ??? ????? ???????????? ?? ???
  ???????? (????????, ?????? ????????), ??????????
  ?? ????? ???? ??????? ??? ???????? ???????????
  ????????. ?????????? ??????? ? ????????,
  ???????????, ??????????? ???????????, ? ?????
  ??????????? ??????-?????????? ?????.permanence -
  Since the laser causes a material change, e.g. by
  vaporizing the material, the code cannot be
  removed without destroying the product surface.
  It is resistant against abrasion, temperature,
  chemical or (UV) light influence.

?????????? magnification
?????? ?????????? ???-??????? Example coding of
PET bottle
10
?????? ?????? ???????? ??????????? Why laser
marking?

• ?????????? ??? ?? ??????????, ??? ? ??
  ??????????? ????????? ????????? ?????????
  ?????????? ?????? ??????????? ??????? ????? ????
  ?????????, ???? ?????????? ? ???????????
  ????????? ?? ????? ??????????. ??? ???? ??????
  ???????? ??????? ????????????? - ??? ??????? ??
  ???????? ? ????? ????????? ???????????.marking
  of moving and non-moving products due to the
  vector-scanning technology the laser is able to
  code products that are moving or not moving while
  being coded. Any of our lasers is able to do
  that, depending on the settings and the way the
  laser is integrated into the production
  environment.

?????? ?????? ? ???????? ?? ???????? Example of a
moving product - coding of label
?????? ?????? ?? ??????????? ?????????????????
??????? Example of a non-moving product - coding
of identification plate
11
?????? ?????? ???????? ??????????? Why laser
marking?

• ?????????? ?? ????????, ???????????, ???????,
  ??????? ???????????? ?????????? ???????? ?
  ????? ????? ????????, ????????? ??? ?????????
  ???? ? ????????????? ?? ???????????? ??????????
  ?? ???????? ?????????? ???????.marking uneven,
  rough, soft, fragile, brittle, hard surfaces
  The laser can code any place on the product that
  the laser beam can reach and that has a certain
  distance relative to the laser head.

?????? ?????? ??????????? - ?????????? ??????????
??????? Example of a soft surface - coding of
rubber profile
?????? ??????? ??????????? ??????????
????????????? ?????? Example of a hard surface -
coding of metal lock
?????? ???????? ??????????? ??????????
???????????? ?????????? Example of an uneven
surface - coding of plastic knob
12
?????? ?????? ???????? ??????????? Why laser
marking?

• ??????? ??????????? ???????????, ?????-??????????
  ??????????, ? ??????? ???????? ??????????????
  ?????????? ??? ????? ????????? ?? 0,05 ?? 0,3
  ??, ? ??????????? ?? ?????? ? ??????.high-resolut
  ion, micro-marking the tool we are using to
  print is a laser spot with a diameter between
  0.05 and 0.3 mm, depending on laser and optics.

?????? ?????-?????????? ?????? ?? ???????????
???????? Example of micro-marking - coding of a
silicon wafer
???????????? ????? human hair
13
?????? ?????? ???????? ??????????? Why laser
marking?

• ?????????????? ??????????????
• Additional characteristics
• ??????? ??????, ?????????????, ???????, ?????? ?
  ?.?. ??????? ????????, ????????, ?????,
  ???????.no inks, no solvents, no stamps, no
  needles, etc. - no short-interval cleaning,
  refill, exchange, waste management
• ??? ????????????? ???????????, ???????? ???
  ??????? ?????, ??????????, ?????????, ???????????
  ????????, ??? ????????????? ?????? ???????????
  ??????????.no mechanical tool contact - no
  direct stress, deformation, scratching,
  contamination of products, no classical wear-out
  of the marking tool
• ?????????????? ???????? ????????? ????????????
  ?????????? ???????? ? ????????? ??????????. ???
  ???????????? ???????????? ? ?????????
  ??????????.extreme flexibility - complete
  computer control for system and process,
  avoidance of classical tools classical
  consumables

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? ??? ???????????? ??? ???????? What are the
benefits for the customer?

• ???????? ?????????? ????? ???? ??????????
  ?????????????????????? ??????????? ???????
  ???????????? ?, ? ?? ?? ?????, ??????????????
  ???????? ? ???????????????? ??????????. ?????
  ???????, ?????????? ????? ??? ??????????? ???
  ???????? Lasers have among all coding
  technologies the highest uptime combined with
  excellent code quality and reproducibility. By
  that there are a number of key benefits for the
  customer
• ??????????? ??????? ????? ????????????
  ???????? ?????? ??? ??????-???? ???????????? ??
  99.8 ???????. ??? ??????????? ??????? ?????? ?
  ???? ????? ???????????? ?????? ???????? ???? 3,5
  ???? ? ???.
• minimal downtime lasers easily achieve 99.8
  uptime, with 5 days a week and 1-shift operation
  that would only be 3.5 h in a whole year!
• ?????? ????????? ?????????? ??? ???
  ???????????? ????????? ????????? ???????????, ??
  ???????????? ??????? ???????? ??? ????????
  ???????? ????????? ??????????????, ????????????
  ????????.
• low operating cost since lasers have no
  classical consumables, the only cost generated
  for the customer is the electrical power the
  system is consuming.

15
? ??? ???????????? ??? ???????? What are the
benefits for the customer?

• ????? ???? ??? ???????????, ????????????? ?????
  ????????? ??????????There are a number of
  additional benefits that result from the laser
  process itself
• ?????? ?? ???????? ????????? ???????????? ? ????
  ?????????? ?????? ???????? ????? ? ???????????
  ????????. ??? ??? ????? ???????? ???? ???????????
  ????????, ?????????? ?????? ??????? ???
  ?????????.
• counterfeit prevention due to permanence and type
  of mark - protection of trade-marked articles and
  product liability. Since the laser changes the
  product surface, a laser marking is hard to
  remove or falsificate.
• ??????????? ????????? ?????????? ? ????????
  ?? ?????????????, ??? ???????????????? ????????
  ???????? ???????? ??????, ???????? ??????????
  ???????????? ????????????? ?????? ???????
  ?????????? ? ?????????, ??? ????? ??????????
  ???????.
• drastically reduced reject rates especially in
  industries where character recognition is a must
  the stability of the laser process leads to
  extremely low reject rates due to the coding
  process and by that increases the customers
  product yield.

16
????? ???????? ????????????Laser Product Overview
17
????? Overview
Videojet 3320 power class 30 W
Videojet 3120 power class 10 W
???????? ??????? ? ??????? ??2 ? ?????????
??????????? ?????? Sealed-off CO2 laser marking
systems Steered beam technology
??? ?????? ????????? ?? ????? ? ??? ??
???????????, ? ????? ????? ????? ???????????
???????????. ??????? ??????? ?????? ????????
???????? ???????? ?????? ?, ??? ?????????,
???????????? ??????? ??????? ???????????
??????. Both lasers share the same software /
hardware structure, main difference is in the
output power and resulting from that the
different marking unit dimensions.
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?????????? ??????? System components
????????? ???? Supply unit
?????????? ?????? - Marking unit ?????
?????????? ???????Laser Head Marking Head

????? ?????????? - Handheld Remote Control
Videojet 3120
19
???????????? / ????????? ??????????
Communication/ Interface Concept
Videojet 3320
Videojet 3120
????? ?????????? Handheld controller
????????? ??? ???????????? ? ???????? ??????? ?
???????? ????????????, ?????? ??? ?????????,
?????????? ? ?.?. Interfaces for online
communication withexternal devices host
computer, PLC, PC etc.
Smart Graph com ??????????? ????????? ActiveX,
??????????? ????????????? ????????? Smart Graph ?
????? ??????????? ????????? ???????Smart Graph
com ActiveX software interface that allows
integration of laser software Smart Graph into
customers operation software
???????????? ??????????? ??????????? Smart
GraphPC Smart Graph
20
Marking speeds line speeds
Application Examples Blue cardboard
21
???????? ??????, ???????? ????? Marking speeds
line speeds
?????? ?????????? ?????? ?? ???????? ???????? ?
???????????? ????????Application Examples
Beverage label paper
22
Marking speeds line speeds
Application Examples PET bottles
23
Marking speeds line speeds
Application Examples PET bottles
24
Marking speeds line speeds
Application Examples metallized label paper
25
Marking speeds line speeds
Application Examples IC (integrated circuit)
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2
3
4
26
????? Overview
Videojet LN100A power class 100 W
Videojet DN50A power class 50 W
????????? YAG-??????Steered beam NdYAG laser
marking systems
??? ?????? ????????? ?? ????? ? ??? ??
???????????, ? ????? ????? ????? ???????????
???????????. ??????? ??????? ?????? ????????
???????? ?, ??? ?????????, ???????????? ???????
??????? ??????????? ?????? ?????? ???????
????????? ????????? ???? (DN50A ???????
??????? LN100A ???????? ???????) ??????
??????? ?????????? (DN50A ??????????
?????????? LN100A ??????? ??????????).Both
lasers share the same software / hardware
structure, main differences are in the output
power and resulting from that the different
marking unit dimensions, in the way the laser
beam is generated (DN50Adiode pumped
LN100Alamp pumped) and in the cooling
(DN50Ainternal cooling LN100Aexternal cooling).
27
?????????? Technology
??????? ??????????????????High performance

• ??? ?????? YAGLaser type NdYAG laser
• ????? ???????? 50 ?? (DN50A), 100 ?? (LN100A)
  Power class 50 W (DN50A) 100 W (LN100A)
• ????? ??????? ? ????? ??????- ???????? ??????
  ?? 1300 ???????? /???. - ???????? ????? ?? 15
  ?/???. Fastest in their class - up to 1,300
  characters/s- line speed up to 15 m/s
• ???????????? ??????????????????, ???????, ??????
  ?????????? ????????? ????????????
  ???????????????? ??????????Provides
  high-quality, consistent, crisp marking through
  superior high-speed technology
• ???????? ?????? ?????????? ??? ???????
  ?????????????????????? ??????, ??????
  ???????-???????? ????? ? ??????? Marks more
  information at high speed multi-line text,
  machine-readable codes, graphics
• ?????? ?? ?????????? ???? ???????????
  ?????????Marks moving (on-the-fly) and
  non-moving products
• ?????????? ??? ??????????? ?? ??????? ? ?????????
  ??????????? ??????????? (????????, ?????????,
  ???????? ???????)Virtually no font, code and
  graphic restrictions,esp. Chinese and Japanese
  characters

? ??????????? ?? ?????????? Depends on the
application!
Videojet DN50A
Videojet LN100A
28
?????????? ??????? DN50A System components DN50A
?????????? ?????? - Marking unit?????
?????????? ???????Laser Head Marking Head
????????? ???????Touch screen
????????? ????Supply unit
???? ??????????? ?????????? Internal cooling

Videojet DN50A
29
?????????? ??????? LN100A System components
LN100A
????????? ???????Touch screen
????????? ????Supply unit
????????????? Heat exchanger

?????????? ??????? ????? Marking Head Laser
Head ?????????? ?????? - Marking unit
Videojet LN100A
30
???????????? / ????????? ??????????
Communication/ Interface Concept
????????? ??? ???????????? ? ???????? ??????? ?
???????? ????????????, ?????? ??? ?????????,
?????????? ? ?.?.on-line communicationhost
computer, PLC, PC/ Laptop etc.
????????? ???????Touch Screen
31
??????? ?????????? YAG-??????? Application
examples NdYAG