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Unread 25-01-2002, 14:59
Chris Hibner's Avatar Unsung FIRST Hero
Chris Hibner Chris Hibner is offline
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Re: Definition of an Extrusion

Quote:
Originally posted by kmcclary
Be warned: Most people associate the term extrusion with "HOLLOW extrusion", so if you are thinking of for instance using a piece of 2"x3" SOLID aluminum stock, you'd better check with FRCtech2002 first about it. They may not consider that an extrusion. That is because although "bar stock" CAN be made as an extrusion, solid shapes are most often formed instead by rolling or squeezing it.
In past years, FIRST had defined "extrusion" as any part that was manufactured by extruding through a die. Therefore, solid bars counted as extrusions.

When someone would ask "does xyz count as an extrusion?", FIRST would respond: "find out from the manufacturer if it was made by extruding the material; if so, it counts as an extrusion; if not, it is not an extrusion."

Of course, just like this year, virtually every known part on earth was asked if it counted as an extrusion. It's very simple: if the material was extruded, it's an extrusion. If you're not sure how it was made, contact the manufacturer and ask.

-Chris
 


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