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#1
Old 03-31-2003, 10:31 AM
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What Are Ball-Peen Hammers Used For?

What do you use the spherical end of a ball-peen hammer for? I don't think I've ever seen that side of the hammer put to use.

Thanks.
#2
Old 03-31-2003, 10:35 AM
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Auto body guys pound out dents with them.
#3
Old 03-31-2003, 10:35 AM
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The ball is used in metalworking, usually to form curved surfaces. The peen is the flat face of any hammer.
#4
Old 03-31-2003, 11:32 AM
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Quote:
Originally posted by Big Jeff
The ball is used in metalworking, usually to form curved surfaces. The peen is the flat face of any hammer.
Surreal, if you ever get the chance to watch "Motorcycle Mania" on the Discovery Channel, tune in. Master bike builder Jesse James is shown fashioning a gas tank out of a flat sheet of metal. He uses a ball-peen hammer to form the tank's shape, then a kind of a twin-roller device to smooth out the surface.
#5
Old 03-31-2003, 11:43 AM
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You can hammer nails. But only if you have really good aim.

Brads if you have really, *REALLY* good aim.

[Grinny.]
#6
Old 03-31-2003, 11:46 AM
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Quote:
Originally posted by Big Jeff
The peen is the flat face of any hammer.
That's not right Big Jeff. Here's what Merriam-Webster has to say:

Main Entry: 2peen
Function: noun
Etymology: probably of Scandinavian origin; akin to Norwegian penn peen
Date: 1683
: a usually hemispherical or wedge-shaped end of the head of a hammer that is opposite the face and is used especially for bending, shaping, or cutting the material struck
#7
Old 03-31-2003, 12:14 PM
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I use ball peens regularly in armour working. Basically, the conical end is mostly used to peen rivets. A rivet looks a lot like a round headed nail, with no taper. Once it is put in place, the shaft of the rivet is mushroomed by tapping around its outer edge with the cone side of the hammer. Once it is sufficiently mushroomed, the flat side of the hammer is used to flatten the rivet.

The peen side can also, with a little modification, be used as a forming hammer, as it allows a large amount of force to be concentrated in a smaller, semi-spherical area, which shapes metal quite nicely into a curved or bowl like shape.
#8
Old 03-31-2003, 12:43 PM
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The correct answer, is of course, to make steel drums out of household objects...
#9
Old 03-31-2003, 12:43 PM
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Quote:
Originally posted by bordelond
Surreal, if you ever get the chance to watch "Motorcycle Mania" on the Discovery Channel, tune in. Master bike builder Jesse James is shown fashioning a gas tank out of a flat sheet of metal. He uses a ball-peen hammer to form the tank's shape, then a kind of a twin-roller device to smooth out the surface.
Sounds like you're talking about an English Wheel, a device also used in custom auto-body work. Here's an example.
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#10
Old 03-31-2003, 12:57 PM
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I, like all real macho guys, use a ball peen hammer in stead of a razor. I pound the whiskers in and bite them off on the inside.
#11
Old 03-31-2003, 01:01 PM
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The Sleeper has found the ball peen hammer to be a very useful tool of persuasion when applied liberally to the knee caps.
#12
Old 03-31-2003, 01:19 PM
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Just used my ball peen hammer yesterday to pound down a small finishing nail that was poking up out of my hardwood floor.

The nice round end hammered the nail back into place without leaving an unsightly dent in the floor.
#13
Old 03-31-2003, 02:23 PM
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Quote:
....Master bike builder Jesse James.... - bordelond
- - - Humph. "master" my foot: firstly, he uses aluminum not steel. Secondly, he doesn't even weld his tanks, he brazes them....

~
#14
Old 03-31-2003, 02:28 PM
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Quote:
Originally posted by DougC
- - - Humph. "master" my foot: firstly, he uses aluminum not steel. Secondly, he doesn't even weld his tanks, he brazes them....

~
How gauche!
#15
Old 03-31-2003, 02:47 PM
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The newbies are loving this thread aren't they? But...
Quote:
Originally posted by Woeg
I use ball peens regularly in armour working. Basically, the conical end is mostly used to peen rivets. A rivet looks a lot like a round headed nail, with no taper. Once it is put in place, the shaft of the rivet is mushroomed by tapping around its outer edge with the cone side of the hammer. Once it is sufficiently mushroomed, the flat side of the hammer is used to flatten the rivet.

The peen side can also, with a little modification, be used as a forming hammer, as it allows a large amount of force to be concentrated in a smaller, semi-spherical area, which shapes metal quite nicely into a curved or bowl like shape.
A ball peen hammer doesn't have a conical end. Your explanation mentions cone side and flat side, but the cone side is the peen (see definition earlier). Surely you're talking about two different hammers here?

Here's someone else talking about peening rivets.
#16
Old 03-31-2003, 02:53 PM
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Quote:
Originally posted by InTheField
Just used my ball peen hammer yesterday to pound down a small finishing nail that was poking up out of my hardwood floor.

The nice round end hammered the nail back into place without leaving an unsightly dent in the floor.
This is more of an example of making do with the tools available than using the ball-peen for what it's intended. The real tool for this job was the nail set -- much more accurate and less likely to leave gouges in your floor.
#17
Old 03-31-2003, 02:55 PM
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To peen your balls, what else?
#18
Old 03-31-2003, 03:01 PM
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What Are Ball-Peen Hammers Used For?

They also make really good murder weapons for those of us not blessed with too much upper-body strength.
#19
Old 03-31-2003, 03:33 PM
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* Mental note, don't annoy Eve when she is carrying a hammer*
#20
Old 03-31-2003, 04:10 PM
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Quote:
Originally posted by Finagle
This is more of an example of making do with the tools available than using the ball-peen for what it's intended. The real tool for this job was the nail set -- much more accurate and less likely to leave gouges in your floor.
You are 100% correct Finagle, however the OP asked, "What do you use the spherical end of a ball-peen hammer for?" not "What is the spherical end of a ball-peen hammer supposed to be used for?"

Not trying to be a smart-arse or anything - just my interpretation of the question!
#21
Old 03-31-2003, 05:34 PM
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Quote:
Originally posted by InTheField
You are 100% correct Finagle, however the OP asked, "What do you use the spherical end of a ball-peen hammer for?" not "What is the spherical end of a ball-peen hammer supposed to be used for?"

Not trying to be a smart-arse or anything - just my interpretation of the question!

Well, to split hairs (a task for which a ball peen hammer is utterly unsuited), "What do you use X for?" can be interpreted either as "What do you, creatively, use X for?" or as an informal way of saying "What is the intended purpose of X?". If this was IMHO, then the first reading might be preferred, but in GQ, I think you have to choose the second reading.


And now to get back to the OP, I seem to recall using a ballpeen hammer to get a decorative finish on metal back when I was taking metal shop lo these many years ago. Depending on the size of the ball, you can various kinds of stippled or antiquing effects. Although as I recall, it mostly made my metalworking look like it got caught in a hailstorm.
#22
Old 03-31-2003, 05:54 PM
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Well, one thing that I think everyone can agree on:

The location of the Original Poster = Gobbler's Knob.

This would be a marvelous name for a rock band.
#23
Old 03-31-2003, 05:56 PM
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Back in my auto class days...we used it to make our own gaskets. The roundness fit into the holes very well.
#24
Old 03-31-2003, 06:02 PM
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Back in my auto class days...we used it to make our own gaskets. The roundness fit into the holes very well.
#25
Old 04-01-2003, 06:12 PM
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Quote:
Originally posted by The Sleeper
The Sleeper has found the ball peen hammer to be a very useful tool of persuasion when applied liberally to the knee caps.
Do you have another shtick?
#26
Old 04-01-2003, 06:53 PM
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Here's a good thing to use ball-headed hammers for (I'm not sure what peen means in the first place, I'm not looking it up, and I don't believe any of you, so there) - gently tapping bent metal back into place. If you have a bronze-looking floor lamp and it gets dented, you can disassemble it and tap the dent back out using a small ball-headed hammer. I'm sure it's good for all sorts of thin metal shaping - the point is to not push it out further than you want it to go, and that would stretch the metal even more and leave you with a greater dimple on the other side. It's impossible to get it back to the way it was, without a rolling action or something (oo idea to finish that project and make it as good and round a cyulinder as before HA
#27
Old 04-01-2003, 08:22 PM
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My welding instructor talks of "peening" a weld, but I haven't gotten that far into welding as yet. So welders use them also.

Any journeyman welders out there?
#28
Old 04-01-2003, 10:30 PM
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I'm a newbie! 2 weeks lurking then bit the bullet on this thread. I carry a 12 OZ in my tool pouch. Use it for most of the legal reasons already posted. Have to agree with REEDER that the hemispherical end is great for making gaskets; especially those made from "garlock" or other paper derivitaves. Picture a pipe flange 2" I.D. bigger O.D. with 4 bolt holes. Lay the material on the face of the flange, tape the face of the hammer around the outside to cut the OD, then the hemispherical end around the inside and the bolt holes. Wah Lah! (can't speak or spell in French--yet)
#29
Old 04-02-2003, 12:02 AM
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Welcome to the SDMB, [b]MajorTom[b]! (And it's "voila")
#30
Old 04-02-2003, 12:12 AM
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Welcome Major Tom, FYI before your 100th post your supposed to mail the mods a stool sample,its mandatory..










I love that joke
#31
Old 04-02-2003, 12:33 AM
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Can I use a ball-peen to break a chunk off my stool to send in? If I don't have a stool can I send in a bit of my office chair?
#32
Old 04-02-2003, 01:02 AM
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Peening is also a method used to densify metals. Shot peening is a common process technique used in the cold working of sheet metal. It involves spraying a regulated stream of very small, harder metallic balls against a given sheet of metal to be worked. Whilst ball-peen hammers are most often used to create non-planar metal shapes, they can also be used to decoratively indent metal surfaces as well. I once owned a beautiful hand peened silver cigarette case that was a sight to behold. Its surface texture is more commonly referred to as the classic "hammertone finish," but peening is the key element. Peening also allows the concealment of a multitude of metalworking sins.

Below is an excerpt dealing with shot peening. Mind you that manual peening was the only method of achieving this effect prior to the "gun" methods now in use.

"Shot peening is a process in which small spherical media called shot, bombard the surface of a metal. This shot striking the surface cold works the material and induces residual stresses, both of which can significantly improve the fatigue behavior of the component. The size, mass and velocity of the shot are important parameter in the process, however, the current nondestructive methods for measuring the process effectiveness and relating it to the fatigue properties are insufficient, making it very difficult to control the process. Furthermore, better understanding of the micromechanics of the deformation mechanisms and the generation of residual stresses are needed to develop predictive models that can provide the fundamental basis for the process control. Improvement to the process will lead to better fatigue performance and provide a better shot peened product. Improved technology for nondestructive measurements of material properties and residual stress are paramount to quantifying the process and improving the product."
#33
Old 04-02-2003, 09:54 AM
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Quote:
Originally posted by Doc Nickel
Can I use a ball-peen to break a chunk off my stool to send in?
Wow, tough poop

Doctor, HEAL thy self!
#34
Old 04-02-2003, 10:29 AM
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Quote:
Originally posted by Doc Nickel
Can I use a ball-peen to break a chunk off my stool to send in?
Doh!

So many jokes, but this is GQ.....
#35
Old 04-02-2003, 12:10 PM
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peen- to draw, bend or flatten as if hammering with a peen.
In other words, to give it a good deforming whack.

For one more example, I was taught that one of the better ways to permanently secure a nut onto a bolt was to use a center punch to peen the nut close to the threads. This would push the threads against the bolt, locking it in place. Needless to say, this was in the pre-Loctite era.
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