Struck Or Engraved...?

ViggoG · 11-20-2002, 05:52 PM

Pete,
I cannot be certain, "But", Close examination of the "Swiss Emblem" give me the feeling that it coulld have been done with "Acid Engraving", (a form of etching that uses an electrode and DC Power supply to enhance the etching action.
This also shows a similar charactistic of pitting or cratering that appears in some electrical discharge machining. Also I see no evidence of rotary tooling marks within the Emblem.
Also I see no evidence of the material having been displaced, compacted, or glazed which is charactistic of impact tooling.
Or perhaps my old eyes fool me even with binocular magnifiers.
ViggoG <img src="graemlins/yltype.gif" border="0" alt="[typing]" /> <img src="graemlins/xyxwave.gif" border="0" alt="[bigbye]" />

EDIT: [img]redface.gif[/img] They Did FOOL me !!!
After enlargement and enhancing it is obvious that Ron has correctly defined the method of impressing the emblem.
But I am even more puzzled by the cratering that appears in the impression. Could this be an effect of the Roll Die beginning to break down ?
[img]redface.gif[/img] [img]confused.gif[/img] [img]redface.gif[/img] <img src="graemlins/icon107.gif" border="0" alt="[icon107]" />
ViggoG

11-20-2002, 05:52 PM	#3
ViggoG RIP Join Date: Jun 2002 Location: South Side Virginia Posts: 534 Thanks: 0 Thanked 1 Time in 1 Post	Pete, I cannot be certain, "But", Close examination of the "Swiss Emblem" give me the feeling that it coulld have been done with "Acid Engraving", (a form of etching that uses an electrode and DC Power supply to enhance the etching action. This also shows a similar charactistic of pitting or cratering that appears in some electrical discharge machining. Also I see no evidence of rotary tooling marks within the Emblem. Also I see no evidence of the material having been displaced, compacted, or glazed which is charactistic of impact tooling. Or perhaps my old eyes fool me even with binocular magnifiers. ViggoG <img src="graemlins/yltype.gif" border="0" alt="[typing]" /> <img src="graemlins/xyxwave.gif" border="0" alt="[bigbye]" /> EDIT: [img]redface.gif[/img] They Did FOOL me !!! After enlargement and enhancing it is obvious that Ron has correctly defined the method of impressing the emblem. But I am even more puzzled by the cratering that appears in the impression. Could this be an effect of the Roll Die beginning to break down ? [img]redface.gif[/img] [img]confused.gif[/img] [img]redface.gif[/img] <img src="graemlins/icon107.gif" border="0" alt="[icon107]" /> ViggoG