Hello and welcome to this knowledge sharing session that we're going to run today. My name is Barry Cahoon, so I'm a Product Solution Specialist for Sandvik Coromant, specialising in indexable milling. And today I'm joined with James. I'm James Hanley, I'm Application Specialist in the Central Region for Sandvik Coromant UK. So today during this knowledge session, we're going to talk about a new product for Sandvik Coromant, the Coromill MS20. For us at Sandvik Coromant, the MS20 is now our new first choice shoulder milling concept. When we've designed this concept to meet customer needs in the dynamic market that we have. Primarily, it's for shoulder milling, that's where it's been designed around in ISO S and M materials, but in the future we will have other materials as well that we can able to manufacture. So, we've got this brand new product, which has been manufactured with this new process that we have now, this multi-axis pressing of an insert, which we'll talk about later on. Yes, it is a shoulder milling product, like I said, but it's many other things than just a shoulder milling product. It can do lots of other application areas from face milling, full slotting, helical ramping, you name it, the MS20 can do it. So, Brian, what's new and improved in the new Coromill MS20 concept? when it comes to the MS20, I think I touched on it a little bit earlier, we've got a new way of manufacturing the inserts, so like a multi-press of manufacturing the inserts. This then gives us more accuracy within the inserts, but it also gives us a more secure cutting edge, so a stronger, more predictable cutting edge. Which I don't believe any of our competitors have that in the market today. So, we're quite unique when it comes to the manufacturing of this particular insert. So, as a concept, it's a true 90 degree concept, so if we want to do repeated shoulder milling or repeat down a wall, we can do, because it's 90 degrees. We have a new insert design interface, so the insert sits a lot secure within the pocket. We have optimized geometries to suit all materials. We have better chip control. So, if you look at the pockets, the chip area of the pockets, especially in ISO S and M materials, where that can be a problem, we're able to get rid of the swarf, the chips, a lot easier, so we're not re-cutting. The material that we've manufactured, the cylindrical shank and EH coupling holders is made from a slightly different material than what we do normally make, but we can touch on that a little bit later. So, some of the benefits, of course, this is strong and robust. We have this interface, a good positive location interface that we've got, and I guess the biggest thing about this product is how robust it is. It's secure. You can drive it, you can, in many different tough applications, a good strong insert. We've got this dimensional accuracy, which we spoke about earlier on, which makes us have a really good surface finish, either on shoulders or bases, walls. So, we've got a lot of things with this product. Because the insert edge is a straight edge as well, we've got this progressive whir pattern that we can see. So, we're not having any shock whir patterns within the insert. It's progressive. We can monitor what's happening with the insert and maybe make a decision what to do, whether to increase cutting speed, decrease cutting speed, or increase FZ feet per tooth, maybe. So, a lot of things we've got positive that benefits MS-20. When it comes to the application areas for MS-20. So, like I said before, it is a 90 degree concept. So, a true 90 degree concept for shoulder milling is its number one. But it can do many applications. As you can see on the screen, we can do full slotting, we can do helical ramping, face milling, and also plunging. It's a very good plunging tool. So, if you want to remove metal quick, in a good way that's positive for your machine, because all the forces are going up the spindle, then maybe you can plunge with this concept as well. So, it is a roughing and finishing cutter. You're able to get really good surface finishes, like I've said before. The main industries that it's suitable for. Okay, we say aerospace and we say oil and gas. But really, where you're machining or the need for a 90 degree cutter or corner, then MS-20, regardless of what markets you're working in, it is a good concept to be working in within that area. Okay. We can see many different applications there, Barry. So, what's the sort of maximum depth of cut for this insert? So, the concept itself, so it's an IC-10 insert, so a size 10 insert. The maximum depth of cut we could use is 9mm. So, that's the maximum. When I would use 9mm depth of cut is when you've got a low AE, so a low width of cut, so around 15-20%. That's when I'd use the maximum depth of cut. If I was using the concept of 70-80% engagement, so nearly full slotting, let's say, but quite a wide width of cut, then you're probably looking at 4-5mm, depending on the machine, the setup and everything like that, if it's suitable. But the product itself will cut 9mm depth of cut. If you're doing a shallow width of cut, so small AE, so 15-20%, and we talk about the 4-5mm depth of cut with that, then what I would suggest is that you use a cutter with as many teeth as you can get in. So, whatever diameter cutter you've picked, get that concept with as many teeth as you can. That way, the cutter and the teeth are in contact with the material as long as possible, so you're not having that intermittent cutting that you do get. So, that's what I would do. Lower AE as many teeth as you can with the cutter. So, looking at the cutter body now, many different features and benefits, but like I said before, you've got this stable tip seat, so this good, strong location of the base of the insert, and as well as the two edges, the location faces of the insert. You've got a strong, robust screw now that we've got in there. We've got these optimized chip room, especially for those materials that are not very good to chip, like ink and L's and I some ISO S and M materials. We've got this new cutter body now, so new material, cutter body. So, anything that you see with the name Coromil next to it is made from hardened steel. That's why we get the accuracy of the cutter. Obviously, any cutter has a shelf life. It can only index the insert so many times before, unfortunately, you need to get a new one. But with MS-20, you're able to insert and index the inserts. You can also insert the insert as many times as many times as you can, and you should get longer tool life with this cutter body. Okay. Okay, so that's a really big thing for MS-20. You mentioned the screw being a bit more robust. Yes. How does this compare to other concepts? Well, the screw itself is probably 50% larger than, say, the Coromil 390, that is the closest concept we have on the market. So, it's a big, strong, robust screw. It's also a bigger key. So, I think we've gone from an IP-8 key screw to an IP-9. So, you've got that bigger drive. So, hopefully, you're not going to be damaging that area. What you've got as well with this is the actual screw head itself is located below the insert itself so that you're not damaging it with a swore. Okay. And also, swore evacuation is not being hindered because of that screw. It's clearing away. Another thing with, I guess, with the screw as well, but the insert in particular is because we've got a straight insert and some concepts of a helix, when we're looking at 4 to 5 mil depth of cut with other concepts, then that's the weakest part of the insert. But with this, it doesn't matter how deep you go. It's the same thickness all the way up the insert. So, it's a big, strong, reliable insert. So, we look at the cutter body itself. You can see here that we've got really good accuracy in the dimensional accuracy in the cutter body. So, plus and minus 0.02 in axial and radial runout. When we look at the dimension of the diameter of the cutter, we've made this concept a minus tolerance. So, minus 0.14. And that's because if we're working in any tight tolerances, high value components, we're not going to, hopefully, not going to be scrapping any components because we've got this minus tolerance. We have, for our cam programmers out there, who use, like, vertical force, we've got axial tilt and radial tilt angles of plus 10 and minus 13 degrees. So, the positive axial tilt gives us this vibration-free cutting. The negative radial tilt allows us to get the swarf and chips away from that cutter. So, we're not re-cutting and it makes it a stronger, robust tool. So, we're not re-cutting and it makes it a stronger, robust tool as well, but still with a really positive cutting action that we have with MS-20. So, when we look at the insert geometries that we have, we have three geometries. We've got E-L50, M-M20 and M-M30. E-L50, so that's a ground insert, so very sharp. So, if you're cutting titaniums, for example, then maybe you want to be using E-L50, M-M20 is a very, still a very sharp, accurate geometry, even though it's a direct pressed insert. And then you've got M-M30 at the end, which is more for duplexes and maybe in canals, but because it's a stronger geometry, so providing everything's perfect on your setup, the machine, you're able to drive it a bit harder in feed rate, with that geometry. What I would say is, in my experience of using this product, where traditionally, you need a ground insert for titanium, for example, with M-M20, because of this multi-way of pressing the insert now, you actually don't need, in many cases, the ground insert. You can use the pressed insert of M-M20. Okay. So, now, we'll do some demonstrations on the machine. So, we're going to machine some stainless steel, so 316L stainless steel. We're going to use a 25 diameter cutter with three teeth, using 2040 grade today, here on this part here. So, the first operation we're going to do today is a shoulder milling operation, 15%, around 15% engagement. So, here, we're going to go towards the top end, when it comes to depth of cut. So, we're running at 8mm depth of cut, with an AE of around 4mm. We're running at 180m a minute, surface speed, and 0.17 FZ, which is feed per tooth. So, the next operation we're going to do, is shoulder milling again, but this time, we're running at 70% engagement. So, if you remember, when I said about the 70% engagement, we have to reduce the depth of cut, maybe. So, now, we're at around 4.5mm depth of cut. Still running at 180m a minute. And an AE of around 90mm. What you'll see here, with this demonstration, is we're running dry. So, because we're running dry, and we are running dry, we can run around at 180m. If we were to put the coolant on, with stainless steel, this type of stainless steel, then we've probably had to reduce the cutting speed, because we're introducing coolant. And what happens when you introduce coolant, you get thermal cracking on the insert. So, that's why we're able to run at higher surface speed, without coolant. And I would always recommend, run without coolant, in this type of stainless steel. So, hopefully, from the demonstration, we're getting a very good finish, a very good surface finish, not only on the wall, with the repeated shoulder that we're doing, but on the base as well. And that's because, with this concept here, it's got a BS land, as we call it in the current world, a BS land. So, a land on the base of the insert, which generates, almost like a wiper, generates a good surface finish. So, the next operation we're going to do, is full slotting. So, full slotting is probably one of the worst, or if not the worst, operation that you can do, with any milling cutter. So, here, we've reduced the surface speed a little bit, to 160m, and also the feed per tooth. We're at 0.12fz mm a minute. Obviously, we're full slotting, so it's 25mm engagement. And we're going to do, some repeated, 4mm depth of cut. So, now we're going to do, some linear ramping. This product, this 25mm diameter product, has a ramping angle capability, of 3.3 degrees. So, we're full slotting. Because, because we're linear ramping. So, we've reduced the surface speed, down to, 100m a minute. And reduced the, the FZ, millimetres per minute, feed per tooth, to all five. And we've got a ramping angle, with this product, in this application, at the moment, we're going to go around 2.5 degrees, linear ramp. So, now, let's go. So the final operation that we're going to do on this component is helical ramping. So again, because we're fully engaging in the concept, we're at 100 meters a minute and 0.5 millimeters per minute in feed rate, so 0.5 FZ. And this time we've increased the ramping angle to around 3 degrees. Thank you. So now we're going to do some pocketing. What we're going to do first of all is helical ramp into the center of the pocket and then open it up to size by doing some dynamic milling. So MS-20 very good at this type of dynamic milling action if you are creating pockets, cavities etc. So that concludes this short knowledge session that we've run for you today. If you do need more information please reach out to us but if you want to look on our web pages we've got lots of information about our new products and MS-20 is definitely on there. It features quite heavily on our web so we have customer presentations, we have demo films, social media posts, a lot of information you can get your hands on when it comes to MS-20. So with that I'd like to thank you for your time and hopefully you've got some benefit from this short knowledge session. So thanks from me. Thanks from me.