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Thread: First try using HSM toolpath
11-27-2014, 07:19 PM #1
First try using HSM toolpath
So this week i was giving a try at Fusion 360 cam. We had a order of 64 piece to do so it was a good timing to try these HSM toolpath
here is a quick video of 1 of the roughing toolpath that i make
I know the video quality is not the best but i film this with a tablet so sorry about that.
here is the spec of the cut
Material: SS 361L
size 4.750 long 1.5 width 0.500 height
Endmill: Niagara STR440 Stabilizer HT
i know its not the most impressiv video out threre but i did this on a small tool room mill similar to a haas TM1 So here is the spec of the machine.
Mansford VM1000 Fagor 8055 I MC control
7.5 hp direct drive
454 IPM rapid travel
Carrousel tool changer 10 position
around 8000 pounds
Here is a picture of the finish part
Finish part is 4.439x 1.280
the part also have 2 other feature (slot and circular) that i did with HSM strategie. both were using a 1/4 endmill at 7100 RPM 58 IPM 0.400 DOC 0.025 WOC. Both endmill (3/8 and 1/4) were doing the roughing/finishing of the piece (thanks to my 10 position carrousel) they also both of them do the whole 64 piece batch and were withing 0.001 from the first to the last piece so they hold up well.
I know its not the best toolpath or optimize program out there so every usefull information is the welcomre to get better in the futur.
I would also like to say thanks to zero_divide for the help he gave me with the speed/feed and after using is HSMadvisor i suggest to everyone to give it a try its realy worth it.
11-27-2014, 07:44 PM #2
11-27-2014, 07:54 PM #3
Interesting. I thought use of coolant while using HSM parameters was taboo?
11-27-2014, 08:03 PM #4
Looks pretty good. Those Niagara Stabilizer endmills are really nice cutters.
11-27-2014, 08:04 PM #5
Needed 10 characters
11-27-2014, 08:08 PM #6
11-27-2014, 09:51 PM #7
Awesome. Just ran my first HSM job a couple of weeks ago but I was much more conservative than you were. Gotta admit, when I hit the button I was scared! Ran a 12pc order and when I was done the EM was still sharp, no noticable wear, 4140HT, SGS Z Carb.
11-28-2014, 04:54 AM #8
11-28-2014, 05:30 AM #9
But, if the material you have sucks, or you have as little as .060" to hold on to, you should get a few sets of these: Mitee-Bite Products Co. - TalonGrip<sup>™</sup>
There are other companies that make jaws that can hold onto a similar amount of stock, so shop around. These are the ones we use, and regularly hold onto .100" or less (.06" minimum)
11-28-2014, 05:52 AM #10
11-28-2014, 05:54 AM #11
11-28-2014, 07:56 AM #12
11-28-2014, 07:28 PM #13
I myself get scared sometimes. Especially when running > 2x depth for cut at high feedrates.
Using a lot of experience, trial and error and good observational skills it is possible to program efficient HSM toolpths, but I, for one, break tooling almost excursively when trying to guesstimate cutting parameters in my head, instead of just figuring what WILL work for sure in a couple of mouse clicks.
It is OK to run DRY with free-machining or hardened stainless steels/ But the softer, gummy ones tend to stick to cutting edge no matter what you do and coolant is pretty much the only option.
Also you have to make sure chips clear the work area, as they easily chip the cutting edge when being recut in HSM-type toolpath.
11-28-2014, 07:46 PM #14
11-28-2014, 07:52 PM #15
How did you go with the post for fusion? I have a few machines with anilam controllers and being less popular I don't want to be stuck trying to build my own posts.
11-28-2014, 07:56 PM #16
Well at first the generic post didnt work with my control. Ive watch over the forum and find 4 other different post and finally one on them work. I had to change a couple of thing by hand that took 2 min but im using it in free trial and when i buy it im going to work towards modifing those little things and everything will be fine i think.
11-29-2014, 09:08 AM #17
11-29-2014, 09:15 AM #18
11-29-2014, 10:03 AM #19
Big B liked this post
12-01-2014, 10:09 AM #20