model 3d aluminium test

[psycomantis]

Hello everyone
It is recently that in the company we introduced the aluminum processing on a 5assi working center and the catwalk.

the problem is that on the finish we never get a smooth surface.
the finish we make it only with xy passes of 0.2mm and z0.3 with semi-spherical tool advancement of 5000mm/min and rpm 10000

Where is it?

Now I wanted to test a small model you have a 3d test model? even some of the objects an important pen holder that has shaped surfaces where it is necessary to make semi-spherical finish.

Thank you very much

 

[mauride25]

Hello everyone
It is recently that in the company we introduced the aluminum processing on a 5assi working center and the catwalk.

the problem is that on the finish we never get a smooth surface.
the finish we make it only with xy passes of 0.2mm and z0.3 with semi-spherical tool advancement of 5000mm/min and rpm 10000

Where is it?

Now I wanted to test a small model you have a 3d test model? even some of the objects an important pen holder that has shaped surfaces where it is necessary to make semi-spherical finish.

thank you very much[/quot


0.2 is too much you do not have to exceed 0.1 and you have to increase cutting speed

 

[Lettore espatriato]

Good evening,
Apologize for the intromission. I'm not an expert on numerical control, so forgive me if I have to say anything. In these cases it could not be useful, even, to use a tool with a wider radius, in case it is possible, obvious. so the "cuspid" between a pass and the next should be more limited.
Or am I completely wrong?

 

[Alessio83]

per finiture f0,05

 

[gianni55]

for what I remember: important to use a nebulized refrigerant to prevent it from getting stuck, then call tool representatives to make you bring tools to try together with them... You should spend something extra.
also important the type of aluminum.

 

[gianni55]

perform grinding and pre-finishing operations so as to have as much as possible constant overmetal
decrease the tool diameter to avoid shooting as much as possible, which tend to mark the piece...
tilt (as much as you can the tool) so that you work on the side and not in the center
fresa in concordance

 

[psycomantis]

perform grinding and pre-finishing operations so as to have as much as possible constant overmetal
decrease the tool diameter to avoid shooting as much as possible, which tend to mark the piece...
tilt (as much as you can the tool) so that you work on the side and not in the center
fresa in concordance

Thank you.
Having a 5assi machine I can tilt the cutter on one side but in this case I do not induce a mistake on the 4th axle?

how much do I leave overmetal for finishing? What parameters can I set? on our working center we have the nebulized refrigerant

 

[gianni55]

the company I used to work in the past, had faced c.n. milling. 5 axes on complex models, passing from resins to castings, up to switch to aluminum and steel blocks, thus facing a search to optimize machining with a series of tests, to find the right working method for each situation (casting, aluminum in blocks, steel); I related the various bodies (machine tools, programming, workshop, purchases, design etc.), in which everyone performed its part, unfortunately it has been a long time and the variables are so many that I do not remember in detail the parameters.

with regard to the inclination of the head, the speech is complicated, as it depends on the worked figure and type of use of the c.n.:

- Do you work with five axes continuously? (and there he does all the p.u.)

- 3-axis cold using other axes as indexed, tilting the tool for subsquadri? (to advise the inclination from the programmer on the basis of the division of the paths, the analysis of the subsquadri etc.).

- use the 5 axes to guide the tool and make the caves, holes or seats that you want? (do everything to the programmer)

Hi.