"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me...
Ok, who can tell me which coating works better for you (in steels of
various hardness) and your application and setup. (carbide tools)
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me...
...
My friend Bill who has worked as a machinist most of his life says
I'm a real machinist . His opinion is that if I do a machining job that
I get paid for , that makes me a real machinist . I make no claims ... ---------------------
On 9/17/2022 3:38 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me...
Ok, who can tell me which coating works better for you (in steels of
various hardness) and your application and setup. (carbide tools)
I'm not sure what defines a real machinist anymore. To me it's a tool or prototype maker who can solve problems with the jobs I bring him.
-----
My friend Bill who has worked as a machinist most of his life says
I'm a real machinist . His opinion is that if I do a machining job that
I get paid for , that makes me a real machinist . I make no claims ...
"Jim Wilkins" wrote in message news:tg6usl$gg69$1@dont-email.me...
https://www.practicalmachinist.com/forum/threads/ot-youre-not-a-real-machinist-until.249727/
"You can't imagine life without machine tools and the ability to make and tweak everything in your world. I mean, good God! How does ANYBODY make it though life with just the crap you can buy off the shelf at the store?"
"you keep a set of dial calipers on your desk at home"
Yep, plus 4" pocket sized ones in the car and truck.
"Bob La Londe" wrote in message news:tg7i5b$38r$1@gioia.aioe.org...
So about AlTiN vs TiAlN...
------------
https://www.tincoat.net/coatings-offered/altin-tialn/
"When tested head to head, AlTiN usually outperforms TiAlN."
https://ruko.de/en/blog/a-comparison-of-the-coatings
https://brycoat.com/surface-engineering/brycoat-pvd-coating-solutions/brycoat-aluminum-titanium-nitride-altin-or-tialn-coatings/
For AlTiN: "Performs best in high temperature applications. Requires
high temperatures to form the Al2O3 surface layer."
https://www.canadianmetalworking.com/canadianmetalworking/article/cuttingtools/a-guide-to-titanium-based-coatings
On 9/17/2022 9:10 PM, Snag wrote:
On 9/17/2022 3:38 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me...
Ok, who can tell me which coating works better for you (in steels of
various hardness) and your application and setup. (carbide tools)
I'm not sure what defines a real machinist anymore. To me it's a tool
or prototype maker who can solve problems with the jobs I bring him.
-----
My friend Bill who has worked as a machinist most of his life says
I'm a real machinist . His opinion is that if I do a machining job
that I get paid for , that makes me a real machinist . I make no
claims ...
Michael Yellowhair (Praxis Precision) second generation machinist from
what I understand says the same thing to me. Not as many words.
So about AlTiN vs TiAlN...
On 9/18/2022 11:48 AM, Bob La Londe wrote:
On 9/17/2022 9:10 PM, Snag wrote:
On 9/17/2022 3:38 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me...
Ok, who can tell me which coating works better for you (in steels of
various hardness) and your application and setup. (carbide tools)
I'm not sure what defines a real machinist anymore. To me it's a tool
or prototype maker who can solve problems with the jobs I bring him.
-----
My friend Bill who has worked as a machinist most of his life says
I'm a real machinist . His opinion is that if I do a machining job
that I get paid for , that makes me a real machinist . I make no
claims ...
Michael Yellowhair (Praxis Precision) second generation machinist from
what I understand says the same thing to me. Not as many words.
So about AlTiN vs TiAlN...
I can't help you there Bob . I'm still using mostly hand ground high speed steel on my lathe . I will be exploring the world of indexable
tooling as soon as I finish my quick change tool post ...
On 9/18/2022 11:31 AM, Snag wrote:
On 9/18/2022 11:48 AM, Bob La Londe wrote:
On 9/17/2022 9:10 PM, Snag wrote:
On 9/17/2022 3:38 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me... >>>>>
Ok, who can tell me which coating works better for you (in steels of >>>>> various hardness) and your application and setup. (carbide tools)
I'm not sure what defines a real machinist anymore. To me it's a
tool or prototype maker who can solve problems with the jobs I bring
him.
-----
My friend Bill who has worked as a machinist most of his life
says I'm a real machinist . His opinion is that if I do a machining
job that I get paid for , that makes me a real machinist . I make no
claims ...
Michael Yellowhair (Praxis Precision) second generation machinist
from what I understand says the same thing to me. Not as many words.
So about AlTiN vs TiAlN...
I can't help you there Bob . I'm still using mostly hand ground
high speed steel on my lathe . I will be exploring the world of
indexable tooling as soon as I finish my quick change tool post ...
I follow a few of the "hobbyist" channels on YouTube. Many of them seem
to think the smallest diamond shape inserts are the best compromise for
small lathes, and lathes with flexibility/backlash/power issues. I can
see the logic behind it. The smallest diamonds have the best chance of getting them into the chip breaker. Many of them still aren't breaking chips, but IMO that's a safety and cleanup issue more than a part finish issue.
Speaking of not safe... I recall a few years ago I made "bolt action" stainless steel pens for Christmas presents. Drilling the bodies was a nightmare until I gave up on the factory drill edge and ground my own.
Then my best results were hard and fast deep drilling in one continues
peck with giant knives of stainless shooting out of the hole. Not the safest to run or to cleanup around the machine but I drilled both halves
of a dozen pen bodies without resharpening the drill again.
On 9/18/2022 12:16 PM, Bob La Londe wrote:
On 9/18/2022 11:31 AM, Snag wrote:
On 9/18/2022 11:48 AM, Bob La Londe wrote:
On 9/17/2022 9:10 PM, Snag wrote:
On 9/17/2022 3:38 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me... >>>>>>
Ok, who can tell me which coating works better for you (in steels of >>>>>> various hardness) and your application and setup. (carbide tools) >>>>>>
I'm not sure what defines a real machinist anymore. To me it's a
tool or prototype maker who can solve problems with the jobs I
bring him.
-----
My friend Bill who has worked as a machinist most of his life
says I'm a real machinist . His opinion is that if I do a machining
job that I get paid for , that makes me a real machinist . I make
no claims ...
Michael Yellowhair (Praxis Precision) second generation machinist
from what I understand says the same thing to me. Not as many words. >>>>
So about AlTiN vs TiAlN...
I can't help you there Bob . I'm still using mostly hand ground
high speed steel on my lathe . I will be exploring the world of
indexable tooling as soon as I finish my quick change tool post ...
I follow a few of the "hobbyist" channels on YouTube. Many of them
seem to think the smallest diamond shape inserts are the best
compromise for small lathes, and lathes with
flexibility/backlash/power issues. I can see the logic behind it.
The smallest diamonds have the best chance of getting them into the
chip breaker. Many of them still aren't breaking chips, but IMO
that's a safety and cleanup issue more than a part finish issue.
Speaking of not safe... I recall a few years ago I made "bolt action"
stainless steel pens for Christmas presents. Drilling the bodies was
a nightmare until I gave up on the factory drill edge and ground my
own. Then my best results were hard and fast deep drilling in one
continues peck with giant knives of stainless shooting out of the
hole. Not the safest to run or to cleanup around the machine but I
drilled both halves of a dozen pen bodies without resharpening the
drill again.
Been thinking about making another batch. Recently somebody on Facebook
ran across one of my old posts about them and asked about buying one. I told them what I would have to charge, and they said "if you make
another batch please let me know." Actually I have been thinking about
a combination tool. Regular Space Pen (tm) cartridge on the bottom, and carbide scribe on the top. Just flip the pen and lock the bolt in the
other direction. I've got way to many broken 1/8 shank carbide stubs in
my recycle carbide bin. LOL.
On 9/18/2022 11:31 AM, Snag wrote:
On 9/18/2022 11:48 AM, Bob La Londe wrote:
On 9/17/2022 9:10 PM, Snag wrote:
On 9/17/2022 3:38 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me... >>>>>
Ok, who can tell me which coating works better for you (in steels of >>>>> various hardness) and your application and setup. (carbide tools)
I'm not sure what defines a real machinist anymore. To me it's a
tool or prototype maker who can solve problems with the jobs I bring
him.
-----
My friend Bill who has worked as a machinist most of his life
says I'm a real machinist . His opinion is that if I do a machining
job that I get paid for , that makes me a real machinist . I make no
claims ...
Michael Yellowhair (Praxis Precision) second generation machinist
from what I understand says the same thing to me. Not as many words.
So about AlTiN vs TiAlN...
I can't help you there Bob . I'm still using mostly hand ground
high speed steel on my lathe . I will be exploring the world of
indexable tooling as soon as I finish my quick change tool post ...
I follow a few of the "hobbyist" channels on YouTube. Many of them seem
to think the smallest diamond shape inserts are the best compromise for
small lathes, and lathes with flexibility/backlash/power issues. I can
see the logic behind it. The smallest diamonds have the best chance of getting them into the chip breaker. Many of them still aren't breaking chips, but IMO that's a safety and cleanup issue more than a part finish issue.
Speaking of not safe... I recall a few years ago I made "bolt action" stainless steel pens for Christmas presents. Drilling the bodies was a nightmare until I gave up on the factory drill edge and ground my own.
Then my best results were hard and fast deep drilling in one continues
peck with giant knives of stainless shooting out of the hole. Not the safest to run or to cleanup around the machine but I drilled both halves
of a dozen pen bodies without resharpening the drill again.
"Jim Wilkins" wrote in message news:tg6usl$gg69$1@dont-email.me...
https://www.practicalmachinist.com/forum/threads/ot-youre-not-a-real-machinist-until.249727/
"You can't imagine life without machine tools and the ability to make and tweak everything in your world. I mean, good God! How does ANYBODY make it though life with just the crap you can buy off the shelf at the store?"
"you keep a set of dial calipers on your desk at home"
Yep, plus 4" pocket sized ones in the car and truck.
On 9/18/2022 2:16 PM, Bob La Londe wrote:
On 9/18/2022 11:31 AM, Snag wrote:
On 9/18/2022 11:48 AM, Bob La Londe wrote:
On 9/17/2022 9:10 PM, Snag wrote:
On 9/17/2022 3:38 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tg4uho$7496$1@dont-email.me... >>>>>>
Ok, who can tell me which coating works better for you (in steels of >>>>>> various hardness) and your application and setup. (carbide tools) >>>>>>
I'm not sure what defines a real machinist anymore. To me it's a
tool or prototype maker who can solve problems with the jobs I
bring him.
-----
My friend Bill who has worked as a machinist most of his life
says I'm a real machinist . His opinion is that if I do a machining
job that I get paid for , that makes me a real machinist . I make
no claims ...
Michael Yellowhair (Praxis Precision) second generation machinist
from what I understand says the same thing to me. Not as many words. >>>>
So about AlTiN vs TiAlN...
I can't help you there Bob . I'm still using mostly hand ground
high speed steel on my lathe . I will be exploring the world of
indexable tooling as soon as I finish my quick change tool post ...
I follow a few of the "hobbyist" channels on YouTube. Many of them
seem to think the smallest diamond shape inserts are the best
compromise for small lathes, and lathes with
flexibility/backlash/power issues. I can see the logic behind it.
The smallest diamonds have the best chance of getting them into the
chip breaker. Many of them still aren't breaking chips, but IMO
that's a safety and cleanup issue more than a part finish issue.
Speaking of not safe... I recall a few years ago I made "bolt action"
stainless steel pens for Christmas presents. Drilling the bodies was
a nightmare until I gave up on the factory drill edge and ground my
own. Then my best results were hard and fast deep drilling in one
continues peck with giant knives of stainless shooting out of the
hole. Not the safest to run or to cleanup around the machine but I
drilled both halves of a dozen pen bodies without resharpening the
drill again.
I remember you making those and the problems you had . The tooling I bought is 5/16" shank indexable . They use a triangular insert #TCMT
090204 . Small insert , and only uses one side . I'm thinking this
system will speed up some of the steel machining I do . Some of my
mystery metal stock has a tendency to work harden and burn the cutter if
I try to turn at too high a speed .
"Snag" wrote in message news:tg7o6c$lk1a$1@dont-email.me...
I can't help you there Bob . I'm still using mostly hand ground high speed steel on my lathe . I will be exploring the world of indexable
tooling as soon as I finish my quick change tool post ...
--------------------------
Same here. I can keep HSS as sharp as I want and grind custom shapes,
like concave edge and screw head rounders and the angle of the grooves
in a serpentine belt pulley. Almost every job is different and one-off,
so I don't need cutters to hold size for long.
"Snag" wrote in message news:tg8ora$vp1m$1@dont-email.me...
...I've got some stuff that I can't cut with HSS , like heat
treated axle pieces . Bandsaw won't touch it , only things I can cut it
with currently is the plasma or OA torch .
---------------------
Abrasive chop saw?
Mine is good for hardened stock up to about 1" wide, and might do better
if I'd paid more than $3 per disk. It also cuts thin tubing that could
strip the teeth from a bandsaw, and can notch the case hardening of
scrap hydraulic cylinder rod so I can cut it short enough to anneal in
the wood stove.
Abrasive chop saw?
On 9/19/2022 6:05 AM, Jim Wilkins wrote:
"Snag" wrote in message news:tg8ora$vp1m$1@dont-email.me...I don't have one of those ... At one time I had a pretty nice circular
...I've got some stuff that I can't cut with HSS , like heat
treated axle pieces . Bandsaw won't touch it , only things I can cut it
with currently is the plasma or OA torch .
---------------------
Abrasive chop saw?
Mine is good for hardened stock up to about 1" wide, and might do
better if I'd paid more than $3 per disk. It also cuts thin tubing
that could strip the teeth from a bandsaw, and can notch the case
hardening of scrap hydraulic cylinder rod so I can cut it short enough
to anneal in the wood stove.
saw . I mounted an abrasive blade to cut some pieces of steel and pretty
soon I had a piece of junk that would just spark and growl . I do have a
few cutoff discs for the angle grinder , so when that's the only option
I'll use it .
"Bob La Londe" wrote in message news:tgae3r$17f2j$1@dont-email.me...
When cutting tube I always use the bigger horizontal, and set the
hydraulic down feed so it doesn't fall to fast. It works great. If I hadn't stripped the worm gear (replaced now) on the smaller horizontal I might have never found out how great the 7x12s are with the hydraulic
down feed control. I do have an abrasive chop saw, but it rarely gets
used anymore.
-------------------
I learned on DoALL horizontal and vertical bandsaws, so I knew how a
bandsaw was supposed to work and could tinker with a 4x6 until it did
so, close enough for hobby use. I don't think it or the 30" 3-in-1 sheet metal machine belong in a business, they need too much attention to get
and keep them right. Mine came second-hand from shops that had given up
on them.
On 9/19/2022 1:50 PM, Jim Wilkins wrote:
"Bob La Londe" wrote in message news:tgae3r$17f2j$1@dont-email.me...
When cutting tube I always use the bigger horizontal, and set the
hydraulic down feed so it doesn't fall to fast. It works great. If I
hadn't stripped the worm gear (replaced now) on the smaller horizontal I
might have never found out how great the 7x12s are with the hydraulic
down feed control. I do have an abrasive chop saw, but it rarely gets
used anymore.
-------------------
I learned on DoALL horizontal and vertical bandsaws, so I knew how a
bandsaw was supposed to work and could tinker with a 4x6 until it did
so, close enough for hobby use. I don't think it or the 30" 3-in-1
sheet metal machine belong in a business, they need too much
attention to get and keep them right. Mine came second-hand from
shops that had given up on them.
There are probably a lot more of those 4x6 saws in businesses than you
might think. I used mine everyday for five years, and that was after
I owned it for a few years just tinkering before that. I was a kid the
first time I saw one in a business. Probably more than 40 years ago.
My Harbor Freight 4x6 cuts a lot straighter than that old machine did.
LOL. The big key is an undamaged blade. I've noticed new blades
almost always cut straight. Even worn blades cut straight if the
pressure isn't to high, and the tooth set has not been messed up.
I probably wouldn't have bought the 7x12 except I could get it the
same day, and it would take an unknown time to get the gear for the
4x6. Took a week. The one from the Grizzly 4x6 was a drop in
replacement for the one on my Harbor Freight 4x6 bandsaw.
I'd like to find an affordable vertical band saw for use in my shop.
The one I have is a 3 phase with a built in VFD, but it has almost no
power at low surface speed. I might try swapping the pullies to get
more torque, but then the built in surface speed display (just reads
off the VFD) would be wrong. As it is I almost never use it. I often
choose to use the 7x12 for vertical work in the upright position instead.
"Bob La Londe" wrote in message news:tgap7e$18e93$1@dont-email.me...
I'd like to find an affordable vertical band saw for use in my shop.
The one I have is a 3 phase with a built in VFD, but it has almost no
power at low surface speed. I might try swapping the pullies to get
more torque, but then the built in surface speed display (just reads off
the VFD) would be wrong. As it is I almost never use it. I often choose
to use the 7x12 for vertical work in the upright position instead.
----------------------
Perhaps you could rig a magnet-sensor bicycle speedometer to a wheel and calibrate it to give you a useful indication of blade speed. On my motorcycle-wheel sawmill the speedometer reading is close enough to
1/100th of the feet per minute, 60 MPH = 5280 FPM, or 88 FPS. The 55 MPH
tick mark is approximately the blade maker's suggested 5000 FPM.
On 19/09/2022 23:07, Bob La Londe wrote:
On 9/19/2022 1:50 PM, Jim Wilkins wrote:Depending on your VFD you may be able to scale the display value to suit
"Bob La Londe" wrote in message news:tgae3r$17f2j$1@dont-email.me...
When cutting tube I always use the bigger horizontal, and set the
hydraulic down feed so it doesn't fall to fast. It works great. If I >>> hadn't stripped the worm gear (replaced now) on the smaller horizontal I >>> might have never found out how great the 7x12s are with the hydraulic
down feed control. I do have an abrasive chop saw, but it rarely gets
used anymore.
-------------------
I learned on DoALL horizontal and vertical bandsaws, so I knew how a
bandsaw was supposed to work and could tinker with a 4x6 until it did
so, close enough for hobby use. I don't think it or the 30" 3-in-1
sheet metal machine belong in a business, they need too much
attention to get and keep them right. Mine came second-hand from
shops that had given up on them.
There are probably a lot more of those 4x6 saws in businesses than you
might think. I used mine everyday for five years, and that was after
I owned it for a few years just tinkering before that. I was a kid the
first time I saw one in a business. Probably more than 40 years ago.
My Harbor Freight 4x6 cuts a lot straighter than that old machine did.
LOL. The big key is an undamaged blade. I've noticed new blades
almost always cut straight. Even worn blades cut straight if the
pressure isn't to high, and the tooth set has not been messed up.
I probably wouldn't have bought the 7x12 except I could get it the
same day, and it would take an unknown time to get the gear for the
4x6. Took a week. The one from the Grizzly 4x6 was a drop in
replacement for the one on my Harbor Freight 4x6 bandsaw.
I'd like to find an affordable vertical band saw for use in my shop.
The one I have is a 3 phase with a built in VFD, but it has almost no
power at low surface speed. I might try swapping the pullies to get
more torque, but then the built in surface speed display (just reads
off the VFD) would be wrong. As it is I almost never use it. I often
choose to use the 7x12 for vertical work in the upright position instead.
your pulley change. I've done it on a flat lap for glass where I
displayed the platter RPM rather than the motor RPM.
Ok, who can tell me which coating works better for you (in steels of
various hardness) and your application and setup. (carbide tools)
--
Bob La Londe
Proffessional Hack, Hobbyist, Wannabe, Shade Tree, Button Pushing, Not a
real machinis
On Sat, 17 Sep 2022 10:01:41 -0700, Bob La Londe <none@none.com99>
wrote:
Ok, who can tell me which coating works better for you (in steels of
various hardness) and your application and setup. (carbide tools)
--
Bob La Londe
Proffessional Hack, Hobbyist, Wannabe, Shade Tree, Button Pushing, Not a
real machinis
I buy what's avaible and reasonably priced. I do all short run stuff
and don't have any long runs where I could accually compare tools or coatings.
I prefer TiN it's generally cheaper and works on both steel and
aluminum. Getting harder to find everyone likes to sell the exotic
coatings. Most likely a higher markup on those.
| Sysop: | Keyop |
|---|---|
| Location: | Huddersfield, West Yorkshire, UK |
| Users: | 442 |
| Nodes: | 16 (2 / 14) |
| Uptime: | 44:46:14 |
| Calls: | 9,183 |
| Calls today: | 7 |
| Files: | 13,474 |
| Messages: | 6,050,384 |