VHM Fräser vs Hochvorschub Technologien (Zusammenfassung) CNC Fräsen
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- Опубликовано: 13 сен 2024
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Just a question... in the bigger picture....
Is tool wear anything to think of?
Of course the first to cross the line is probably done and need replacing after under 10 runs like that, but is the machine cost pr hour so high, that almost no matter the tool cost, its cheaper to just get it done fastest possible in the total price of the part?
What do the others say about that? I mean time is money 💰
@@CNCAkademy
Time is money. So focus on a powerfull tool which has a good performance. Dont save on high tool costs
Do a little cost analysis and see, because the margin on parts vary. Our shop is mold & die and tool costs account for roughly 8% of total manufacturing costs, so we typically don't worry too much about tool costs beyond... "what parameters do I use to get through this 45 minute (simulated) operation without a tool change". Or, perhaps it's more cost effective to use a sister tool to finish the cycle out. You can evaluate costs at $/cubic-unit and arrive at a higher profit solution.
One example... an operator in a company I use to work at, decided that he would slow the feedrate down to get another couple of parts before changing inserts. At the end of the production day it saved $50 in inserts and cost us 4 more completed parts per shift. I don't remember the exact numbers for the loss, but you can imagine...
Thanks for the answers guys. What tool manufacture gets solid value and performance? Checked out Seco and Kennametal. I only gotten retail prices, but its hard to justify the cost pr part with those tool prices
I think there are 2 things which you should look for:
1. most important is the process security.
2. Mill as fast as you can but as slow as you need.
So it depends on the material to find the most best mill strategy for tool and timesave.
For example when it's a very hard material, you more choose a slower strategy and gentler for tool and machine. Otherwise they will break. (The last 3 strategies would have fit for this)
When it's a soft material, then you don't have to worry a lot of wear for tool and machine, so just focus on time save. (The first strategies are better for this)
Great job friend!
Thank you, my friend. I'll also look at your videos :) Maybe we can support each other :)
@@CNCAkademy Your comparisons are great, I really like it
Hello. It seems to me that for the comparison to be correct, it is necessary to use the entire cutting part of the tool, which makes trochoidal processing. And the rest of the tools must be milled to the same depth.
The comparison is one of material removal rate(MRR). MRR = ap x ae x feedrate. Some of these tools are not designed to take high ap type cuts; hi-feed end mills for instance, but still yield good MRR.
@@zaknefain100 one-piece milling cutters should work to the full depth, and prefabricated milling cutters as far as possible.
"as far as possible" with a smaller hi-feed type cutter is typically around 1 mm. Again, our main concern is the MRR, not the depth of cut.
whats about cutting parameters ? and how can you explain that in previously video high feed milling won the trochoidal ? but in this video trochoidal is better !!!!
Slower cutting data from the high feed here in this video... Sorry First passageway
Good video, thanks for sharing it.
If I tried to sell someone a class of machine with 30 hp, vs exact same configuration of machine but with 20 hp for the same cost, they would look at me like I was crazy. And, rightfully so. Yet, many people are convinced that using less of their machine's capability is cost effective... all in the name of saving some tool life. I have to wonder what the margins on their parts are if that is their primary concern.
Thanks too for watching :)
What is the difference between the two on the left flute count and coating? Great video!
Yes :)
👌
that would be a nice video only if you had all the specs of each tool otherwise what's the point of comparing different strategies on totally different tools? I dont see an point here...
Ok
Guys, with the MB-RNVD 10mm Endmill, You can do both, sloting and torchodial. But in the end, torchodial milling as we call it HDC-Milling is way faster than his oldschool roughing full slot chipping method. But to compare tools, u need a workpiece and not only one cut. Seems like a new video..
I highly doubt it's faster. Calculate the MRR and see , but make sure you're not calculating MRR for troch at 100%. The longer the span, the less time engaged with the part. A slot is probably about as efficient as it gets for troich so it's a viable comparison. Either way, you can simulate and get some idea of cost/cubic-unit.
@@zaknefain100 i understand your point. As i compared the cutting data for the tool, they show a MRR of 136ccm/min for a full slot, and 201ccm/min with HDC. So this means for me in general its worth to buy the tool which has nearly double performance. Try it, of course the choice of the correct strategy is given from the workpiece.
@@Deluxxxe216 What cutting data are you referring to? What % of in-the-cut time are you adjusting the MRR with?
Fraisa tools are good to go.
Fräser in German... simply translates to "cutter" in English. All of these tools are Hoffman... just to get everyone on the same page here.
These aren't real applications of technology. Show me making actual parts. Not show case in perfect conditions.
Hey, I know what you mean. But the YT channel is supposed to show what is possible and what the whole thing looks like. You should be able to make your own decisions using the video and think better about what you need :)
Shops use these types of operations all the time...