Glossary entry (derived from question below)
German term or phrase:
Wälzfräser
English translation:
gear hobbing machines/gear hobbers/hobbing machines
German term
Australia
Sydney-based accredited translator
Native in: English 
Works in: Russian to English, German to English
Wälzfräser
From a job description for a polymechanic. He seems to make tools using coordinate jig boring machines
Apr 5, 2009 09:49: Steffen Walter changed "Term asked" from "Walzfräsern" to "Walzfräser"
Apr 7, 2009 10:53: Steffen Walter changed "Term asked" from "Walzfräser" to "Wälzfräser"
Proposed translations
gear hobbing machines/gear hobbers/hobbing machines
Das Programm der Wälzfräsmaschinen umfaßt eine lückenlose Baureihe bis zu 6.000 mm Werkstückdurchmesser. Im Seriensegment der Kraftfahrzeugindustrie wird für Wälzfräsmaschinen die neue Technologie der HSC - Trockenbearbeitung angeboten, wodurch die Produktivität um 30 % erhöht wird und gleichzeitig der ökologisch vorteilhafte Verzicht auf Kühlschmierstoffe realisiert werden kann.
Die Wälzfräsmaschinen dienen als universelle Plattform für Wälzstoßmaschinen, Profil- und Wälzschleiftechnik.
Das Programm der Wälzfräsmaschinen gliedert sich baukastenartig in vier Größensegmente (max. Werkstückdurchmesser);
http://www.liebherr.com/gt/products_gt.asp?menuID=106184!6-0...
Gear hobbing machines:
The gear hobbing machine program contains a full production series of up to 6,000 mm workpiece diameter. Within the automotive industry segment, the newest technology of HSC-dry cutting is offered which increases productivity by 30% and offers the ecological advantage that no more coolant is required.
The gear hobbing machines are a universal platform for shaping machines and for generating and profile grinding technology.
The gear hobbing machine program uses a modular concept separated into 4 different size segments;
http://www.liebherr.com/gt/en/products_gt.asp?menuID=106184!...
gear hobbing machine (technisch);
Wälzfräsmaschine (technisch) ;
http://www.woxikon.de/deutsch-englisch/gear hobbing machine....
A hobbing machine is a special form of milling machine that cuts gears. It is the major industrial process for cutting (as opposed to grinding) spur gears of involute form;
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Z.E. Ball
31 mins
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Thank you!
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Harald Moelzer (medical-translator)
12 hrs
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Thank you, Harald!
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Austria
more than thirty years of experience
Native in: German 
Works in: Greek to German, English to German, Greek to English, and 5 more.
plain milling cutter or cylindrical milling cutter (moulding cutter)
Germany
Top-Notch Service | Direct Clients Only
Native in: German (Variant: Germany)
Works in: English to German, German to English, French to German, and 1 more.
hob / hob cutter
Compare images at http://www.saacke-pforzheim.de/sde/tools_type_hob.php and http://pdf.directindustry.com/pdf/diametal/tools-for-cutting...
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Note added at 22 mins (2009-04-05 09:57:27 GMT)
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Ingrid might be right - perhaps the entire machine is meant, rather than the tool/insert.
Australia
Engineer and Accredited Translator
Native in: German , English
Works in: German to English, English to German
Slab mill
see reference
Reference comments
Germany
Combining technical expertise and style
Native in: German
Works in: English to German, German to English
The links below might be helpful ...
http://en.wikipedia.org/wiki/Milling_cutter
See "end mill" (your other question) and "hobbing cutter" in the second link.
Discussion