Absolutely! Any "break" or corner in the surface of a part - weather from damage, poor finish, or engraving - will produces a stress riser. This does not necessarily mean that this is the point at which a part will fail, or even that it will fail at all, but a possible fracture is most likely to form at a stress riser.
Also, post-anodizing engraving removes the protective layer and leaves the aluminum below exposed to environmental contamination, pitting, and possibly subsequent failure at that point.
If Campagnolo moved the logo on the C-Record cranks, then they must have found that the original engraving was at a critical spot.
Aldo Ross Middletown, Ohio
----- Original Message Follows -----
From: "Tom Sanders" <firstname.lastname@example.org>
Subject: [CR]Stress risers and Pantographing
Date: Wed, 11 Jan 2006 09:40:45 -0500
> I have been told that on the prototype C Record cranks
> there was an engraved or Pantographed logo that left
> stress risers in the arm and crank failures resulted so
> the logo was subsequently moved and laser etching used
> instead. My question is...Does Pantographing of parts
> typically leave such risers and why or why not? I
> certainly have not heard of any great amount of failures
> among Pantographed parts. Tom Sanders
> Lansing, Mi