HTS DRILLING at 900 rpm is UNREAL (you need to see this)
Published 2024-06-27
Considering the chucks weigh nearly 200kg each… and it's a dual chuck machine… I'm spinning about half a ton of steel at high speed.
But… heavy duty calls - and that hole ain't gonna drill itself.
Learned a bunch in this video, and looking forward to all the machinist with way more experience than me with this particular tool share their insights in the comments. A little bit of vibration and a slight squeal, but overall a very nice result and no loud bangs.
Thanks for tuning in!
#australianmachinist
#machinistlife
#drilling
#machineshoplife
#kennametal
All Comments (21)
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Most anyone that has ever done any machining realizes that setups usually take a lot longer than the actual job.
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i think they accidentally sold you a tunnel boring machine. unbelievable, liked and subscribed
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Its great to see Australian manufacturing and like the presentation.
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About 50 years ago I worked for a company making shock absorbers for the US space industry, we used an Oerlikon system that had 2 tubes, the coolant came up between the tubes and the swarf was carried down the central tube, we had a huge coolant tank linked to car radiators to keep the coolant cool, the finish in the bored tube was like it had been honed.
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I like your humble approach to what you show in your videos. Hopefully, this will keep the negative element that is common on social media to a minimum. The vibration you noticed with the Drill is fairly common especially with this amount of tool engagement. It's like you mentioned. It's a Roughing tool much like a U Drill. I wouldn't be too concerned about the vibration, just as long as you don't start picking up any chatter, which will start eating through Inserts almost as quickly as you went through this material 👍
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I imagine that tool was an investment, but it works.
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if vibration and squealing is present the normal rule is to slow the RPM down.This has worked for me using a 25mm WC series carbide-tipped U drill into 4140. Thanks for the video, impressive drill bit.
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That's pretty nuts. That thing is a monster
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Looks very good. There is a Youtube channel you might be interested in called David Wilks. He seemed to stop posting video's now but they are still there. He showed the most amazing trepanning operations I would have never believed possible in some very difficult materials using home made tools on old conventional lathes. If you haven't seen them it's worth viewing.
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Yes Sir that was truly Awsome !!!!
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Great video thanks for posting
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WOW! Super work.
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That's unbelievable Matt. Very impressive, thanks for sharing. Good job.👍👍
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Iam really impressed. I never used one of these. The surface is way better than i had expected.
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Always nice to see someone working outside of the box. I have some customers that could use this technique to help their process. Cheers!
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That is really impressive 👍👍
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Impressive! Thank you.
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Chatter is usually from a harmonic in the material. Try a 100-120 RPM change each direction to see which gives the better result. Some insert tooling hates to be run conservatively, others protest being run hard. Keep the feed rate the same for that test. If there is zero change, keep the RPM and slightly vary the feed rate +/- 5%. One of these will generally give a result leading to a good finish and less tool wear.
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That thing is one hungry beast!
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These HTS KENNAMETAL TOOL need‘s a REAL STRONG machine with a rock solid tool post. If it is not stabil, the drilling resistance increases enormously and you destroy the inserts. I remember , 25 years ago, the old ŠKODA W200 , SK 60 with a 180mm Walter HTS … nice to hear how the heavy chips are falling … but the remaining piece was really dangerous!!! A bit like a boomerang that never comes back…👍👍👍😎 Cheers from other side of the planet!
