High speed roughing help...

[Brando]

i've also been in the same boat with the scallops they leave giving me trouble with subsequent ops

what i have done for high feed mills was use an optical comparator or a cmm to get the points, then draw the shape as a custom tool, heck you could use a height gage and some radius gages to get you close to the shape

most manufacturers will give you a reference radius to use, i dont think that method works very well (not a very accurate method)

 

ive also been machining 6al4v, once you get an established process with it, can you let us know how well the hf mill works and how long the insert life is? ive been kicking around the ideas of engagement milling and high feed cutters to speed up our roughing process a little bit but as of now its very reliable , were using a 3" r290 sandvik, and its slower but very consistent insert life

[crazy^millman]

Man that sucks. Sorry to hear that I will keep my ears posted if someone comes by peddling stuff to my group of companies I work with.

[mkd]

ya that majorly sucks. thieves messing with your ability to make a living. scum.

 

on a positive note, that cutter seems like a really good method judging by the picture; wide area with a wide tool.

sfm looks good. Don't be afraid to bump up the feed up some. Only stepping .75 you are getting some radial chip thinning.

[brandon b]

Insert life is about 1:30 . Boss said rotate the inserts every hour. So far it's cutting really nicely . I just don't like how the tool is 2" diameter but I can only cut about .75-1." Wide due to the onward angle of the inserts

[Brando]

if you're really concerned about the stepover this seco tool r220.21-02.00-R160.4A has a 1.38dia flat section, .080 max doc, but the insert is only 3sided

and this one is similar to the kyocera with a 1.25 flat R220.21 -02.00-SC12.4A .085 max doc

[Brewster]

if you're really concerned about the stepover this seco tool r220.21-02.00-R160.4A has a 1.38dia flat section, .080 max doc, but the insert is only 3sided

and this one is similar to the kyocera with a 1.25 flat R220.21 -02.00-SC12.4A .085 max doc

We use several of these. It is a most excellent tool.

[djstedman]

I suggest when using a feedmill like that.. draw the cutter.. and use as a custom tool so you get what you want .. otherwise MC wont know where the tool is really at the corners.. also .. just don't use the microlift.. and keep your backfeed the same as forward feed... unless you have a high end machine it wont cost that much time.. and your cutter will simply mill through any remaining stock from previous passes.. I mean it may end up leaving a few bumps here and there but if its roughing then its prob not that big of a deal.. just my two cents..

[Cannon]

Im going to test Sandvik Coromill 419 high feed cutter, they have STP model of the cutter that I can download. Can I import this straight to new X7 tool manager?

[crazy^millman]

Can I import this straight to new X7 tool manager?

 

Nope will need to create a 2d Profile of the thing spun. Turn Profile will get you what you need to download the DXF and take out what you do not need to make the tool from.

 

HTH

 

BTW Happy New Year

[GoetzInd]

Cannon. Sandvik usually has a 2d dxf also. In that case just put all the insert geo on a level called Cut, and all the body on a level called nocut.

 

- Import Custom Geometry from Level - Choose to create the custom profile from a profile stored on a level in the active MCX file when working in Mastercam.

- Import Custom Geometry from File - Choose to create the custom profile from a file. Both MCX and DXF are valid file types when you are working in Mastercam. When you are working in the Tool Manager application, MCX files are not supported.

Note: DXF file types must be in ISO 13399 format.

- Reset Tool Profile - Choose to discard any custom profile that the tool may have, and reset the tool to a Parametric tool.

Note: This button becomes available only after either of the import buttons above are chosen. Once you select a custom file or custom level to import geometry from, Mastercam recognizes that the tool is custom and uses a custom profile, and the Reset Tool Profile button becomes active.

 

- Scalable - Select this checkbox to create a scaled version of the custom geometry. For scalable custom tools to achieve the correct behavior, the custom geometry must follow the Mastercam guidelines for custom profiles (1 unit radius).

[reidmachine]

Happy New year, How is the job going?

[brandon b]

I got one piece roughed. Had to borrow the highfeed holder for another job. So now it's on hold til next week

[Tyler Robertson]

Coromill 419 works great with these toolpaths

[Cannon]

Coromill 419 works great with these toolpaths

 

Tyler, Have you ran test parts with this tool?

I was going to test it against round insert cutters that we use alot for roughing 3d shapes.