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From tiny medical screws to the big bolts that hold bridges together, metal fasteners keep the world running. In our inaugural episode of Beyond the Burrs, Scott Potter, VP of Sales at Able Electropolishing, explains the critical role fasteners play in the automotive, industrial and construction industries — and why electropolishing is the ideal finishing solution for fasteners.

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00:00Welcome to Beyond the Burrs, the podcast where precision meets performance, brought to you by
00:09Able Electropolishing. In each episode, we explore the hidden challenges, innovations,
00:15and breakthroughs behind metal finishing, fasteners, and the critical components that
00:19keep the world running. Whether you're an engineer, manufacturer, or just fascinated
00:25by what makes modern industry tick, we'll take you beyond the burrs and into the science of a perfect
00:31finish. Welcome. I'm Pat Dunnigan, and I'm here with Scott Potter, the Vice President of Sales for Able
00:38Electropolishing. Able is a 71-year-old family-owned company in Chicago that pioneered the commercial
00:45application of a process known as electropolishing. And today, Able is the world's largest electropolishing
00:52specialist. Hi, Scott. Hi, good morning. Good morning. Why don't you begin by telling us what
00:59we need to know about electropolishing? What is electropolishing? Well, simply, it's a reverse
01:06plating process. Most people have dealt with plating in their finishing history, but electropolishing is
01:13the reverse polarity. We electrochemically remove the outer skin of metal. And what we do is we're
01:21improving micro-inch finish. We're deburring the parts, adding corrosion resistance, giving a decorative
01:27finish, all in one step. So today, we're focused on electropolishing for fasteners, bolts, screws, nuts,
01:36often a very tiny part, but a lot of big parts wouldn't work without them. Why are fasteners important,
01:42and what kind of fasteners does Able finish?
01:44Well, they're very important because they hold together intricate machinery, equipment, everything
01:53from semiconductor to, you know, bridges. And they serve a very important purpose, and they have to be
02:06able to endure longevity in environmental situations. So they are very important in many structures.
02:16What are some examples of the types of fasteners that Able finishes?
02:20I do all kinds of hex head cap screws, slotted screws. The designs of the heads over the years have
02:31gotten a lot more complex, but do a lot of hex head cap screws probably are number one.
02:39And what kind of equipment are they going into?
02:42They use them in bridges. They use them in construction. They use them in automotive applications.
02:49And from everything from automobiles to trucks to fire trucks, a lot of examples where they need
03:01multiple benefits from a process like ours.
03:04Have you seen a lot of changes in the way fasteners are made or the types of fasteners that you're seeing?
03:09What's different from what you saw, you know, 10 years ago?
03:13Yeah. Head design, a lot of custom design on the heads, threads. Sometimes you have a partial thread.
03:20You don't have a thread all the way up the shaft. One of the things that's changed, probably the biggest
03:26change we've seen is the tight tolerances. The tolerances have been tightened up as far as, and which,
03:33you know, leads to better quality and repeatability as far as the machining goes. But
03:39probably I would say that the number one thing is, is the tighter tolerances, especially in the
03:47automotive industry required. What other types of specifications do fastener manufacturers have
03:54to meet? Well, they've, one of the things that they, they like to meet is ASTM A967, which is a,
04:04which is a passivation specification. Most, most people are used to passivating
04:09fasteners. But, you know, to get the extra benefits, the electropolishing, it does include the
04:16requirements for passivation. One of the specs that we certified to a lot is ASTM B912,
04:23which is the use of electropolishing for purposes of passivation. So they, they require,
04:30a lot of these companies are requiring more than just the standard passivation, what they've seen in
04:35the past. When are some of the other challenges faced by the fastener industry?
04:41Well, the big thing is, is obviously overseas competition. Rockford, Illinois, you know,
04:48years ago used to be the fastener capital of the world. And as, as labor increased, you know,
04:57people started looking to save money. And so they started partnering up with people, uh, um, overseas
05:03and, um, a lot of companies, uh, you know, they, they, they built facilities over overseas because
05:11they, they have, you know, plenty of, uh, cheap labor, um, and also open up, uh, you know, capacity
05:19issues as well. Um, but, um, yeah, and also, uh, you know, we've had, uh, the, uh, situation with the
05:30tariffs. That's been a big, a big issue here because, um, you know, those, those companies
05:36who are importing the raw materials and still trying to be competitive here are having a tough
05:41time. Uh, and they're, they're being forced to, in many cases, import, uh, you know, foreign, uh,
05:48you know, foreign parts. So how does ABLE help? What, what problems does ABLE and electropolishing
05:56help solve for fastener manufacturers? Well, one of the things is, uh, we're, we, we have bulk
06:02electropolishing, which is, uh, is obviously a lot less costly than rack electropolishing. Um, and
06:11we also, we operate, uh, three shifts, five days a week here. So we can turn around, you know,
06:20high volume orders of, of parts. Uh, we've, uh, implemented a lot of automated equipment. We've
06:26spent millions of dollars implementing that. And so we can, we can handle not only the, um, the volume,
06:33but also we can have good repeatability with our bulk process. We've come up with, uh, uh,
06:39automation enhanced process, which helps for, uh, helps with uniformity. It's an automated
06:46agitation system that we have. Um, so those, those two big things, I mean, when you, when you're,
06:51when you're dealing with, with tight, tight margin, close margins, it's, uh, you know, they're,
06:56they're, they're looking to save, uh, you know, pennies, um, which, you know, with the volume,
07:01it definitely adds up.
07:02So is that automation enhanced bulk electro polishing a differentiator? Is that a process
07:10that Abel created?
07:12It is. It is something, it is a differentiator. Uh, there are people who do bulk electro polishing,
07:17but they don't do a very good job of it. We've taken it to the next step. Uh, in order for us to
07:22win business, we've had to have, uh, improved throughput and not with the throughput, we also
07:27have to have repeatability with our quality. So it's something that's, uh, homegrown here,
07:33something that we developed. Um, and it's something that, uh, our, our customers are very,
07:39uh, they're very proud of, uh, what we've done. Um, the big thing is, is that you have with,
07:46with the bulk process, you have a variation in the removal on the parts. You can have anywhere from,
07:51from two tenths to a thousandth traditionally. Uh, we've tightened that up. Um, so we, we have,
07:57you have less variation from part to part, um, not only in the size, but also in the,
08:02the aesthetics.
08:05What are the advantages of electro polishing for fasteners?
08:10Well, one of the big ones is, is it, uh, eliminates galling, uh, by removing burrs, micro burrs,
08:17uh, you eliminate, uh, potential of parts seizing up in the assembly line. Um, also, uh, the,
08:27uh, parts that we do for, um, automotive, uh, applications, uh, fire trucks, uh, semi trucks,
08:35uh, they're on the road all the time. They're concerned about, uh, corrosion from road salts.
08:39Uh, so corrosion is, is, is a, is a big one as well, or a lot of these, uh, these parts,
08:45they're specked out with salt spray test, um, requirements that they have to meet. Um,
08:52and then micro inch finish. And we, you know, we're able to improve the micro inch finish by up to 50%
08:57with the electro polishing, which, um, enables some of these, uh, these people to be able to mark,
09:03to make the parts per print, um, fatigue life, uh, improvement. We're, uh, removing the fissures
09:11and cracks in the material so that, uh, you don't have any situation with a premature failure.
09:16Are there other services that you provide to fastener manufacturers?
09:22We do, uh, we do, uh, in, in some cases, some people might want us to degrease the parts. We
09:28have, uh, vacuum vapor degreasing. Uh, we also, uh, offer nitric and citric passivation. Um, but,
09:37uh, mainly the most of the, most of the work that we do for in, uh, in, as far as fastener
09:44finishing is done with the, uh, bulk electro polishing. Okay. So what's the best way to learn
09:52more about the services that ABLE can provide for fastener manufacturers? Well, we have, uh,
09:58a lot of information on our website. We have, uh, uh, we have pages, uh, for the specific industries,
10:05but we also have information that's geared toward the fastener industry. So, uh, I would welcome you to,
10:11uh, to go on and use our new AI search, uh, which you'll search through hundreds of pages of,
10:18of content that we have. Uh, I think you'll find it, uh, very helpful. Um, and, um, if,
10:25if you're interested, we're, uh, always willing to run free samples. Uh, you'll see when you get onto
10:31our website, right on our homepage, you can see, um, the sample request button. You just, uh, you can
10:38fill out a transmittal form and send samples into us that we do free of charge and normally turn
10:44around in 24 to 48 hours. You can also go on there and you can also request a quote. We can upload a
10:50drawing and you can, uh, you can, we can get you a quote. So if you're like, ah, what, you know,
10:54before I get too far into this, I want to know a ballpark price, or you want to know how much it
10:59costs, we'd be happy to work up a quote for you as well. How does the free sample process work? Is
11:05there a minimum or number of parts that someone would have to send in or? There is, uh, with the
11:12bulk, we try to replicate production as much as we can. Uh, we, we like a minimum of 250, uh, samples,
11:19uh, as far as bulk. And then at the same time, we can actually run some parts, uh, with rack as well.
11:25So typically with rack, we only need like, you know, like a dozen parts. Uh, but a lot of people,
11:30they're not quite sure what process that they need. So we'll run bulk and rack samples at the
11:36same time. So, uh, but yeah, if you could, uh, you know, give us enough to, enough to experiment
11:42with, and this way we can give you something that's going to be, uh, representative of production.
11:47Okay. Well, that sounds like a good place to start and maybe a good place for us to finish.
11:51That was very informative and thank all of you for watching. For more information, you can visit the
11:57Able Electropolishing website, or you can reach out by phone to learn more about Able solutions for
12:02the fastener industry. Thank you. Thanks for listening.
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