Quick Question Thread
#31
(10-03-2019, 11:04 PM)Vinny Wrote: Willie: I found the box and in it was only one more of those 2" rounds, but it did come with the number of what it is.  It's 2050.  I remember having a hard time locating what it was last time I looked.

2050? Aluminum/copper? 17428

I'm with Stan and would probably use 4140 myself. It worked a treat for me when I made the new ratchet ring for my arbor press - although I used annealed round stock and hardened it myself after machining it. I did make something else from 4140 PH too (chuck keys maybe?) and was surprised at how well it machined even half hardened. Have to say I like the stuff. Smile
Willie
Reply
Thanks given by:
#32
(10-03-2019, 11:28 PM)Highpower Wrote:
(10-01-2019, 12:58 PM)arvidj Wrote: My quick question ... anyone have any experience with a Quorn sharpener they would like to pass on? Any thoughts would be appreciated.

Never laid eyes on one but apparently there are a couple of books available across the pond on them.
http://www.lathes.co.uk/quorn/

Looks like a nice bit of kit. Smiley-signs021

There are plans available for making your own.

Ed
Reply
Thanks given by:
#33
(10-03-2019, 11:46 PM)Highpower Wrote:
(10-03-2019, 11:04 PM)Vinny Wrote: Willie: I found the box and in it was only one more of those 2" rounds, but it did come with the number of what it is.  It's 2050.  I remember having a hard time locating what it was last time I looked.

2050? Aluminum/copper?  17428

I'm with Stan and would probably use 4140 myself. It worked a treat for me when I made the new ratchet ring for my arbor press - although I used annealed round stock and hardened it myself after machining it. I did make something else from 4140 PH too (chuck keys maybe?) and was surprised at how well it machined even half hardened. Have to say I like the stuff.  Smile

Not Aluminum/Copper, this is some form of tool steel. When I found the info before, it was as hard or harder than 4140. I have a bunch of 4140 1" (and thicker) plate. This stuff came out of a tool and die shop that went under. If I find the specs on it, I'll post them.
Logan 200, Clarke 7x12, Index 40H Mill, Boyer-Shultz 612 Surface Grinder, HF 4x6 Bandsaw, ...
Reply
Thanks given by:
#34
Twas a lot easier to find this time. 2050 is the product number of PCS, it's a tapped support pillar used in molds. The actual material is 1040. Here are the specs on 1040 and 4140:

1040: https://www.azom.com/article.aspx?ArticleID=6525
4140: https://www.azom.com/article.aspx?ArticleID=6769

The machinability of 1040 is 60, compared to 4140's 65. As to hardness, they are very close to each other.

It also has one other property that makes it better than 4140. I have 2": round 1040, I don't have 2" round 4140!!!
Logan 200, Clarke 7x12, Index 40H Mill, Boyer-Shultz 612 Surface Grinder, HF 4x6 Bandsaw, ...
Reply
Thanks given by:
#35
(10-04-2019, 12:21 AM)EdK Wrote:
(10-03-2019, 11:28 PM)Highpower Wrote:
(10-01-2019, 12:58 PM)arvidj Wrote: My quick question ... anyone have any experience with a Quorn sharpener they would like to pass on? Any thoughts would be appreciated.

Never laid eyes on one but apparently there are a couple of books available across the pond on them.
http://www.lathes.co.uk/quorn/

Looks like a nice bit of kit. Smiley-signs021

There are plans available for making your own.

Ed

The sad truth is that a lot of the projects I've already started and bought materials for will never get finished as it is.
No point in me starting any more. Blush
Willie
Reply
Thanks given by:
#36
(10-04-2019, 08:15 AM)Vinny Wrote: It also has one other property that makes it better than 4140.  I have 2": round 1040, I don't have 2" round 4140!!!

That is a good property to have! Smile

And it's close enough for government work... Big Grin
Willie
Reply
Thanks given by:
#37
(10-04-2019, 08:15 AM)Vinny Wrote: It also has one other property that makes it better than 4140.  I have 2": round 1040, I don't have 2" round 4140!!!

Let me guess, you're at least partly Scottish.  Only 1% will make one squeeze every possible cent out of a dollar bill. Big Grin

BTW, I'm of Scot, Irish, English and German decent.  Genuine 100% mutt.
Reply
Thanks given by:
#38
Polish and German - 50% each. Although my former business partner used to say something similar about me.
Logan 200, Clarke 7x12, Index 40H Mill, Boyer-Shultz 612 Surface Grinder, HF 4x6 Bandsaw, ...
Reply
Thanks given by:
#39
50/50 Hungarian/Lithuanian. I'll spend top dollar (if I have it) on something I really want. My younger brother on the other hand is tighter than two coats of paint. Still don't know how that worked out. Rotfl
Willie
Reply
Thanks given by:




Users browsing this thread: 1 Guest(s)