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Abtragen

English translation: ablation

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:Abtragen (laser context)
English translation:ablation
Entered by: Rowan Morrell

03:25 Sep 9, 2013
German to English translations [PRO]
Tech/Engineering - Materials (Plastics, Ceramics, etc.) / Laser Marking of Plastics
German term or phrase: Abtragen
"Die Beschriftung des Kunststoffteils mittels Laser kann durch das Aufschäumen, Karbonisieren oder Abtragen erfolgen (siehe Abb. 1).
Beim Aufschäumen wird eine helle Markierung auf einem dunklen Untergrund erzeugt. Typische Kunststoffe, die zum Aufschäumen neigen sind z.B. POM und PA.
Das Karbonisieren schafft eine dunkle Markierung auf einer hellen Oberfläche und wird häufig für PC, PS, PET, ABS und PBT eingesetzt. PE und PP haben eine Sonderstellung und können unter bestimmten Prozessbedingungen zum Aufschäumen, unter anderen Bedingungen auch zum Karbonisieren neigen (siehe Abb.2).
Beim Abtragen brennt der Laser den oberen Teil der Farbschicht heraus. Dadurch wird die darunterliegende Farbe sichtbar.
Dieses Verfahren wird auch »Tag-und-Nacht-Effekt« genannt (z.B. Tastatur mit Beleuchtung der einzelnen Ziffern und Buchstaben, Bedienknöpfe im Auto)."

From a text about laser marking of plastics. There are various translations for Abtragen, but I just nail down which one fits here. Some kind of erosion or etching, maybe? TIA for your help.
Rowan Morrell
New Zealand
Local time: 09:09
ablation
Explanation:
I found this - a description of the plastic laser process.
Selected response from:

Redletterbox
Germany
Local time: 23:09
Grading comment
It seems like "ablation" and "engraving" are almost used interchangeably in a laser context, but I went with ablation in the end. Tough decision though! Many thanks to everyone for your assistance - much appreciated.
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +3(laser) engraving
Kim Metzger
3 +2ablation
Redletterbox


  

Answers


1 hr   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +3
(laser) engraving


Explanation:
Laser marking: foaming, engraving, carbonization

Foaming. At low laser intensities, a destruction of molecular structures causes a color change and surface restructuring. This effect is similar to what can be achieved when bending nylon
many times–at the bend you will observe a lighter color.

Engraving. Localized increase in temperatures above the melting point of the material causes melting.
Once the material is resolidified, a modified surface structure occurs in the form of an etch. This effect is typically achieved with CO2 wavelengths in most thermoplastics.

Engraving with color change. At relatively highlaser intensities,, a local evaporation of surface material causes a trench with ridges. As a result of carbonization, a color change occurs.
Laser Marking on Plastic Materials - primross.com.mx
www.primross.com.mx/laser/marking/Laser_Marking_on_Plastics...‎

Recent technological in- novations in the laser indus- try and the formulation of plastic have led to advances that allow a marriage of the two technologies.

A laser engraver uses a highly concentrated beam of light to burn or cut into a variety of materials. Rowmark has developed a complete line of products specifically for the laser engraving process. Most laserable products are 2-ply laminates, the top layer (cap) of which can be burned away to reveal a contrasting substrate below, resulting in one-step signage.

http://www.rowmark.com/mark/laser_guide/pages/intro.asp



Kim Metzger
Mexico
Local time: 15:09
Meets criteria
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 308

Peer comments on this answer (and responses from the answerer)
agree  Coqueiro
1 hr
agree  Heather McCrae: great proficiency Kim, why are you not a Proz member/certified Pro?
3 hrs
  -> Because I'm a bad boy.
agree  Ramey Rieger (X)
4 hrs
Login to enter a peer comment (or grade)

6 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +2
ablation


Explanation:
I found this - a description of the plastic laser process.

Example sentence(s):
  • Laser Ablation is the process of removing material from a solid by irradiating a polymer with a high-intensity ultra-fast laser beam, thereby vaporizing the material and causing a direct conversion from solid to plasma.

    Reference: http://www.laserage.com/medical-components/plastic-ablation
Redletterbox
Germany
Local time: 23:09
Meets criteria
Native speaker of: English
PRO pts in category: 4
Grading comment
It seems like "ablation" and "engraving" are almost used interchangeably in a laser context, but I went with ablation in the end. Tough decision though! Many thanks to everyone for your assistance - much appreciated.

Peer comments on this answer (and responses from the answerer)
agree  Harald Moelzer (medical-translator): yes - "laser ablation"
8 mins
agree  Thayenga: :)
1 hr
Login to enter a peer comment (or grade)



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