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Help with programming and machining this part

tline

Plastic
Joined
Dec 26, 2017
4.0mm x 30 Hole die.jpg
I need help programming the angled face end of this part.

Any advice appreciated.
 

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  • Die machining line.pdf
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Mill? Lathe? What have you tried so far? What do you need help with specifically?

Way, way too open ended for anyone to be able to help you.

exactly what i was thinking! if it is on a lathe i would use a LH dnmg set up for facing but there are a lot of options on how to do it, flip a boring bar over, trepans, etc.
 
I need to make 20 all slightly different.
I thought turning would be quicker but I don't know what tooling to use.
The part is 316 stainless steel.
I have tried in HSM works but again it will not accept a boring bar.
 
I need to make 20 all slightly different.
I thought turning would be quicker but I don't know what tooling to use.
The part is 316 stainless steel.
I have tried in HSM works but again it will not accept a boring bar.

i had never heard of hsm works until today but i looked it up and it looks like the program is calling it a 55 deg diamond which i have a bad habit of calling a dnmg since that is pretty much all i use.
 
I need to make 20 all slightly different.
I thought turning would be quicker but I don't know what tooling to use.
The part is 316 stainless steel.
I have tried in HSM works but again it will not accept a boring bar.

Hello tline,
I would use a Boring Bar similar to that shown in the attached picture; all you need is an approach angle that will give clearance on the angled face. No need to flip it, just set it as a conventional B/Bar.

Boring Bar1.JPG

The example code is for a 0.8 TNR. DOC is conservative, as this insert shape and approach angle doesn't give a great cutting action with a DOC much over the TNR size when face cutting from small to large Dia.

Regards,

Bill

Code:
(55DEG. DIAMOND 0.8 TNR BORING BAR 100DEG APPROACH ANGLE)
N1 G00 X-0.400 Z3.000
G01 Z1.000 F1.00
G01 Z0.260 F0.20
G01 X30.246 Z-1.350 F0.25
G01 X139.700
G01 Z-1.050
G03 X142.100 Z0.150 I1.200 K0.000
G00 Z2.200
G00 X30.147
G01 Z-1.345
G01 X58.793 Z-2.850
G01 X139.700
G01 Z-1.350
G00 X58.693
G01 Z-2.845
G01 X87.340 Z-4.350
G01 X137.373
G01 X139.700 Z-3.186
G01 Z-2.850
G00 X87.240
G01 Z-4.345
G01 X111.700 Z-5.630
G01 X134.813
G01 X137.373 Z-4.350
G00 X137.373 Z2.200
(FINISH PASS STARTS HERE)
G00 X142.100 Z2.200
G01 Z0.000 F0.20
G02 X140.000 Z-1.050 I0.000 K-1.050
G01 Z-3.249
G01 X134.937 Z-5.780
G01 X111.684
G01 X-0.400 Z0.109
G00 Z2.200
 
Thank you Bill.
Much appreciated.
Mike

Hello Mike,
If you were to use a Face Roughing cycle, such as a G72 cycle for a Fanuc Control, you only need to program the profile path and you can then play around with the DOC using the parameters of the cycle without having to re-post process the program.

Regards,

Bill
 
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