Northwest Blacksmith Association

acorn table dogs | Heat Treating | Forum

Avatar

Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
acorn table dogs
September 28, 2010
3:07 pm
Avatar
andy blakney
Member
Registered User


NWBA Member
Forum Posts: 16
Member Since:
August 16, 2010
sp_UserOfflineSmall Offline

I 've been told acorn table dogs are 4140 .Can anyone confirm ?

September 28, 2010
5:57 pm
Avatar
Grant
Member
Registered User
Forum Posts: 1420
Member Since:
March 18, 2010
sp_UserOfflineSmall Offline
20620sp_Permalink sp_Print

Depends on who they came from. I wouldn't bet on it. Junk yard steel rules apply. I've manufactured many similar commodity products and a lot depends on what I can get a good deal on or what I have laying around that would be suitable.

“There are painters who transform the sun into a yellow spot,
but then there are others who, with the help of their art and their intelligence,
transform a yellow spot into the sun.” ~ Pablo Picasso ~

September 29, 2010
3:19 pm
Avatar
Larry L
Member
Registered User
Forum Posts: 1566
Member Since:
March 22, 2010
sp_UserOfflineSmall Offline
20642sp_Permalink sp_Print

Well andy if you want to make some I have "lots" of 1 5/8" round 4140.... Just the right size for a 1 3/4" table

Actually I think I have 4 or 6 dogs that I am not using as well...

Whatever you are, be a good one.
Abraham Lincoln

October 3, 2010
5:27 pm
Avatar
andy blakney
Member
Registered User


NWBA Member
Forum Posts: 16
Member Since:
August 16, 2010
sp_UserOfflineSmall Offline
20734sp_Permalink sp_Print

Years back I bought a few acorn table dogs .I was told they were made of 4140.So during a dull moment back in the spring I forged myself a couple chunks that look like they could be alright hammers.I fit handles and used them a bit.Now I would like to harden them.I know I might be wasting my time but I am willing to learn from my mistakes.I got them up to a orange yellow then I bricked up gas forge and went home for the night.I understand next I should heat them up to 500 degrees and quench them in oil.I was hoping to use one of those temperture pens to indicate the 500 degrees.At this point in a perfect world I would have a hardend hammer head .Should I now temper ?......What I would like to figure out is a simple way to harden hammers with the tooling I have.{or can obtian cheaply]I do have some 4130 thats I plan to forge into hammers.So if these dont work out I still want a plan to heat treat my next victims.I got hammer smithing itch.....Thanks for your imput.

October 3, 2010
10:44 pm
Avatar
Larry L
Member
Registered User
Forum Posts: 1566
Member Since:
March 22, 2010
sp_UserOfflineSmall Offline
20742sp_Permalink sp_Print

Im not an expert Andy but 500 deg is not hot enough... I think 1500-1600 deg is the target range for 4140 When you draw it back I think 400-500 deg will give a good working hammer hardness..

If you want you can come down to the shop someday and we can do it.... I have a optical pyrometer that reads to 2500 deg and a quench oil tub set up ready to go

I have had good results with the hammers I have done out of 4340 but most of the time my 4140 tools I quench just the working end in water and then let the color run back almost to blue ( when the straw first starts to turn blue)

Whatever you are, be a good one.
Abraham Lincoln

November 19, 2010
5:30 am
Avatar
Stumptown Forge
Member
Registered User
Forum Posts: 78
Member Since:
May 30, 2010
sp_UserOfflineSmall Offline
21979sp_Permalink sp_Print

Andy,

This is just my opinion but having used several different dogs to hold down plate I have found that much like and anvil hold down it just doesn't matter. In fact, I would say that the less it was hardened the better. 4140 is pretty hard like RHC of 28 as forged. I would use it to make some great hammers and use mild steel for the dogs. Just my 2 cents.

November 20, 2010
1:48 am
Avatar
David Browne
Member
Registered User
Forum Posts: 81
Member Since:
May 14, 2010
sp_UserOfflineSmall Offline
22003sp_Permalink sp_Print

I gotta agree with Stumptown. I made a dozen or so dogs out of mild steel a few years ago and they grab just fine. In fact, I have a few of the expensive fancy kind with the lever vises on them and I prefer the plain ol' "two whacks with a hammer" dog.

Attached files

[Image Can Not Be Found]

Forum Timezone: America/Los_Angeles

Most Users Ever Online: 668

Currently Online:
9 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

Larry L: 1566

Grant: 1420

Bruce Macmillan: 625

Lee Cordochorea: 595

Lynn Gledhill: 572

JNewman: 520

Gene C: 504

J Wilson: 426

Eric Sprado: 383

Tom Allyn: 340

Member Stats:

Guest Posters: 22

Members: 8708

Moderators: 4

Admins: 1

Forum Stats:

Groups: 23

Forums: 97

Topics: 3532

Posts: 20280

Newest Members:

LawlessForge, Jim Cameron, hsmac02, Theresa Mae Oborn, Anthony Parker-Hoang, PJF, Adamphipps, Jackstakes, crazywolf53, Rickwaldron

Moderators: Steve McGrew: 77, N.W.B.A.: 72, webmaster: 0, bluehost: 0

Administrators: admin: 539