Fiindca e clar ca e vorba de unghiul de asezare in cazul unei scule aschietoare, mi-am permis gradul de certitudine 4 :-)

Dictionarul tehnic Englez-Roman (2004) spune asa:
"angle of clearance / clearance angle / relief angle".


Prefer clearance angle (sau angle of clearance) pentru ca:

http://www.answers.com/topic/clearance-angle
http://encyclopedia2.thefreedictionary.com/clearance angle

"(mechanical engineering) The angle between a plane containing the end surface of a cutting tool and a plane passing through the cutting edge in the direction of cutting motion."


http://www.allbusiness.com/furniture-related/office-furnitur...

"The importance of tooling clearance angles
... The clearance angle is also important, particularly in combination with low rake angles, because the workpiece springs back after separation from the chip. "


Si mai sunt si alte referinte, destul de multe, pe Google.

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Note added at 2 hrs (2011-04-26 09:13:23 GMT)
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scuze pentru eroarea din raspuns, este vorba de "angle of clearance", in mod evident.


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Note added at 5 days (2011-05-01 10:37:46 GMT) Post-grading
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thank you