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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Taps in green coating
If I see a tap in green coating, would it be correct to assume that it
is a resharp? i |
#2
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Taps in green coating
On 2007-10-11, Grant Erwin wrote:
Ignoramus22384 wrote: If I see a tap in green coating, would it be correct to assume that it is a resharp? It could be, probably is. But it also could be someone was just using up some green hot dip. It could also be new. Sometimes plastic packages get cracked and tossed. Basically, I think all you can assume is that it's a tap in green coating. I have about 250 lbs of taps in my pickup, hence the question. They came from a plant that was surplising some of their stuff, I am sure that they have no time for cheap gimmicks -- and they did not get much $$ for the taps either, not worth the scamming effort. By the way, the visit to the plant today was very interesting, they had giant metalworking machines the size of a small house. i |
#3
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Taps in green coating
Ignoramus22384 wrote:
If I see a tap in green coating, would it be correct to assume that it is a resharp? It could be, probably is. But it also could be someone was just using up some green hot dip. It could also be new. Sometimes plastic packages get cracked and tossed. Basically, I think all you can assume is that it's a tap in green coating. :-) GWE |
#4
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Taps in green coating
Ignoramus22384 wrote:
On 2007-10-11, Grant Erwin wrote: Ignoramus22384 wrote: If I see a tap in green coating, would it be correct to assume that it is a resharp? It could be, probably is. But it also could be someone was just using up some green hot dip. It could also be new. Sometimes plastic packages get cracked and tossed. Basically, I think all you can assume is that it's a tap in green coating. I have about 250 lbs of taps in my pickup, hence the question. They came from a plant that was surplising some of their stuff, I am sure that they have no time for cheap gimmicks -- and they did not get much $$ for the taps either, not worth the scamming effort. By the way, the visit to the plant today was very interesting, they had giant metalworking machines the size of a small house. Resharpened taps aren't like resharpened end mills, right? Machinists depend on new end mills being a certain diameter and when they get sharpened (unless they just do the end) they get smaller. But taps are sharpened along the flutes and still do every bit as good a job as when they were new. GWE |
#5
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Taps in green coating
On Oct 11, 10:18 am, Ignoramus22384 ignoramus22...@NOSPAM.
22384.invalid wrote: If I see a tap in green coating, would it be correct to assume that it is a resharp? i no |
#6
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Taps in green coating
"Grant Erwin" wrote in message ... snip------ Resharpened taps aren't like resharpened end mills, right? Machinists depend on new end mills being a certain diameter and when they get sharpened (unless they just do the end) they get smaller. But taps are sharpened along the flutes and still do every bit as good a job as when they were new. That's not necessarily true. Taps are often sharpened only on the tapered portion that does the cutting, totally ignoring the flute. Weldon, in fact, made a tap sharpening fixture that did just that. One thing I can assure you is that a resharpened tap, unless handled extremely well in the resharpening process, won't come close to the performance of a new tap, and may not cut size. That was a tough lesson learned by management when I was working in the aero-space industry. The tool crib tossed dull taps and replaced them, which turned out to be much cheaper than the valued parts scrapped from oversized threads. Harold |
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