Drilling
Solid Round Tools - session 10
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Hello and welcome to this Solid Round Tools Knowledge Session. During this series we will cover features, strategies and products relating to Solid Round Tools. As always we start with safety. Safety is our top priority at Sandvik Coromant. Please ensure you are watching this in a safe environment. Be aware of the safety procedures, exits and assembly points at the building that you are viewing. Hello my name is Ben Lodge and I'm the Solid Round Tools Product Specialist and today I'm joined with Dan Smythe. Hi I'm the Solid Round Tools Driver for the UK. So today we're going to be looking at automotive. So why don't you tell us a little bit about the components that we see within the industry. So within the automotive area you see three main groups. You've got engine, you've got transmission and you've got components. And today we're going to concentrate and look at some of the applications that are made, products made from steels and from cast irons. So we're going to be looking at cylinder blocks, we're going to look at engines, we're going to look at crankshafts and conrods. Them sort of components are what we're going to be looking at today. Okay. So as we look at our product range, as we can see here, the tools are all kind of specific for the applications that we see. You know, so we're not just going to be talking about Solid Round Tools products. You know, we can see within our portfolio we've also got our automotive milling cutters, as well as our cylinder boring tools that we see can be utilised in the ISOP and ISOK areas. And then, you know, the products that we are going to be talking about here, we see our drilling and tapping ranges of products specifically designed when it comes to P and K applications. So there we've got our 860 GM, our newest product within the drilling and portfolio, as well as our Corridrill 400 and 430 products. And then as we move across, we can see that we've got our tapping products. So here we've got our straight flutes, certainly when we're looking at ISOK areas, spiral point, spiral flute, and then our Corrid tap 400 when it comes to forming. So I'm right in thinking there's different aspects that we have to consider when it comes to cut tapping or roll tapping. Yeah, absolutely. I think when you come down to the materials that we're looking at today with P and K group materials or steels and cast irons, there can be a sort of limiting factor on whether you can cut that material or whether you can form it. So when you get down to cast irons, because of the actual grain structure of that material, it's not very ductile material. So it doesn't like to flow and move. So it can crack or it's quite brittle. So if you tried to form that with, say, the Corrid tap 400 or one of our forming taps, then you would have a problem doing that. So for that, something like a straight flute tap, with the nature of the material, how it chips, a straight flute tap lends itself really well to machining that. Okay. So now we're going to dig into the actual components themselves. So to start off with, we're looking at the crankshaft. So do you want to tell us a little bit about the crankshaft? So the crankshaft is essentially the heart of an engine. It's also quite a challenging component to machine, to the tolerance that's required, and also to the speed that's required for large volume manufacturers of these components now. So there's certain challenging aspects for some deep hole drilling that goes into them, which is quite challenging because one of the materials is not the softest of materials, but also for the entry and exit of some of these holes that are quite difficult because it's not a flat surface that it'll be exiting on or entering on. So the crankshaft is something that we have got tools that we tailor towards this to address some of those challenges and sort of take some of the pain out of the machine and the component. So before that, we're actually talking about the Corridor 865, which, you know, for oil holes on the crankshaft. So this is a material-specific product available through our tailor-made portfolio. So looking at ISOP and K applications, I'm right in thinking these are specific geometries for these kind of materials. That's right, yes. We have a drill within our family, the 861, which is already a long series drill that can work on a range of materials, but its geometry is designed to work across a versatile spectrum, where the 865's geometry is tailored specifically for materials that you're going to encounter in the automotive segment, like for crankshafts and for certain engines, cylinder blocks, that sort of work. So the geometry to it is ground and treated differently to what our standard products are. So this is going to help with the challenges within automotive, certainly for like cost per component or cost per whole, depending on how the customer's measuring it, but also for productivity as well. Yes, exactly. You can have elevated speeds and feeds because it's tailored for that application in mind. That's great. So now as we look on to another component, we're going to talk a little bit about the engine block. So the engine block is, again, a very key integral part of a vehicle. All vehicles have them right up from HGV, lorries down to the smallest car that you can buy. The engine blocks tend to be cast-iron, but depending on the spec or the size of the engine, they have different tolerances and different build classes. And what tools we would use would also vary depending on the sort of requirement of what the engine is going to be used for in its life. So now we're going to have a look at some examples of the tooling that we could use on a ISO-K or a cast-iron engine block. Yep. So to start off, we're going to look at the drilling and tapping of the oil pan fastening holes. So first up, we've got the Corridral 400. You know, this is a specific geometry within ISO-K. And we can see there we've got the stepping chamfer built in. So this is a tailor-made product for the customer's requirement. Then we're going to follow that up with our T100-KM. Material-specific geometry and grade. And we can see there we're running at quite high VC, 50 metres a minute. When it comes to drilling and reaming the oil pan location pinholes, again, we're using the 400KM. And we're following that up with our 835 PF Cororima. And now we're looking at the deep hole drilling features. So with our 861, which we spoke about, the first thing is to pilot drill. And we have a specific pilot drill when it comes to the 861 and also the 865, where we utilise a 150 degree point angle, which ensures that the longer drill engages at the chisel and not on the full cutting edge. And as we can see there, we follow up with our 861 drill within this feature. So now we're going to have a look at our final component, which is the connecting rod. Do you want to tell us a little bit about the connecting rod? So con rods or connecting rods, these are parts that connect the piston to the crankshaft. So it's a real key important part of an engine, has a lot of forces and stresses put across it. So it tends to be mainly made from steels or RP group material. And we have, again, a range of tools that are going to suit the challenges of machining this component. So we're going to have a look at the bolt hole features that we see there on this component. Yep. So first off, we're looking at the 860 GM. We've spoken about this a number of times, a fantastic drill when it comes to ISO-P machining. And, you know, we can see there we've got a wide range available within the standard products. And we're seeing, you know, really good results, both in productivity and in tool life with this product. So we'll have a look at some of the features now. So first, we've got this unique grade, the multi-layer coating. Helps give us improved productivity and a consistent tool life. The new flute form, this high core strength, improved chip evacuation. As well as reduced cutting forces and a better hole quality as well. We also see features like the corner reinforcement to give us increased corner strength. And also the new point geometry. So these are refined clearances, giving us better surface quality. And this flute edge reinforcement and the edge preparation. So this gives it an increased strength on the tool. So now we're going to have a look at the success cases that we see within this area. So first off, we've got the 860 GM. So as we look at this, we've seen an increase when it comes to the VC. So we've seen a higher productivity when it comes with this product. But we're also seeing a higher tool life as well. So with the 860 GM, what sort of hole quality or hole tolerance can you achieve with this drill? Is there still a requirement to ream? I mean, we're looking at H8, H9. So depending on the customer's requirements, you know, depends on whether we'll have to ream afterwards. If we're looking at a H7, certainly we'd look to ream these holes. But, you know, we are seeing a consistent around the H8 area, you know, and that's because of the design of the drill, the stability. You know, but that can also be coupled, you know, with things that we spoke about previously, like the Coralchuk 930. You know, ensuring we've got that really good setup because, you know, the drill is one thing. But, you know, if we haven't got the things behind it, you know, that's going to have a detrimental effect. So it's really important that we look at the hole setup rather than just the drill. Yeah. And in this example, you know, we saw a capacity increase to the customer of 30%, you know, and in the automotive industry, that's a really good result. And what our customers within this area are really wanting to see. So once we've drilled the hole, we're now going to look at tapping it. And in this case, we're looking at form tapping. We released a ISOP tap within this area. And we've got a short video just to show the tapping action. First off by tapping. So know that. So as we look at the customer case, within this area we can see here we've got two different types of connecting rod that we're doing so we've got two different materials there and we can see that the two different results so on an average we were seeing a 25% increase in tool life you know which is a really good result when it comes to a tapping application you know certainly for this area you know normally an automotive company will have been doing these components for a number of years so to give that added increase when it comes to tool life is a real advantage for that customer so Ben in the video that we were just watched you could see the the machining process was carried out with an emulsion oil but do we have products or solutions for people who are carrying out that process using MQL or minimum quantity of lubrication yeah we do I mean we have the interface for MQL on our drills available that's available through tailor-made for many of our products and we're also able to utilize MQL when it comes to our tapping range one thing that we have to kind of stress is the level of MQL that you have certainly when we're looking at thread forming in this area you know we're looking at emulsions we normally want to see a high lubricity certainly with the emulsions and having that higher oil content if that's not an option then we look at things like EP additives so extreme pressure additives certainly when it comes to emulsions now looking at MQL or minimum quality lube then we have to make sure that we're at the higher end again of that oil content within the air because if not you know we'll start to see some problems with a thread forming operation if you'd like more information on the topics that we've covered today then please follow the QR code or the website link on the screen thank you