User:Stever/boxford/speedsnfeeds: Difference between revisions
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All recipes from personal experience and tested |
All recipes from personal experience and tested on the [[Tools/boxford|Boxford 260VMC]], Categories of machining are Roughing, Finishing, Slotting, Engraving, Drilling |
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== Recommended surface speeds == |
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{| class="wikitable" style="margin: auto; text-align: center;" |
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|+Tool Speeds (m/min) |
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|- |
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! scope="col"| Material |
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! scope="col"| HSS |
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! scope="col"| Cobalt |
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! scope="col"| Carbide |
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|- |
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! scope="row"| Plastic |
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| 15 |
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| 15 |
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| Not recommended |
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|- |
|||
! scope="row"| Aluminium |
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| 100 |
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| 150 |
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| 300 |
|||
|- |
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! scope="row"| Brass |
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| 75 |
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| 125 |
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| 200 |
|||
|- |
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! scope="row"| Steel |
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| 25 |
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| 35 |
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| 65 |
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|- |
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! scope="row"| Stainless Steel |
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| 20 |
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| 25 |
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| 40 |
|||
|- |
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! scope="row"| Titanium alloys |
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| Not recommended |
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| Not recommended |
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| 15 |
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|- |
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! scope="row"| Tool Steels |
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| Not recommended |
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| 10 |
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| 30 |
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|} |
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'''NOTE : THESE ARE APPROXIMATE RECOMMENDATIONS - YOU WILL NEED TO RESEARCH ELSEWHERE AND GET EXPERIENCE IN ORDER TO PICK SPEEDS PROPERLY - IF THE TOOL MANUFACTURER'S RECOMMENDATIONS DIFFER FROM THIS TABLE, USE THE MANUFACTURER'S FIGURES INSTEAD''' |
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== Key == |
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{| class="wikitable" |
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! Colour !! Meaning |
|||
|- style="background-color:#ccccff;" |
|||
| Blue || Not (proven) a maximum, could do more |
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|- style="background-color:#ccffcc;" |
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| Green || A demonstrated maximum, any more will break tools |
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|- style="background-color:#ffcccc;" |
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| Red || Known to be excessive, will break tools |
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|} |
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== Aluminium == |
== Aluminium == |
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===Roughing=== |
===Roughing=== |
||
{| class="wikitable" |
|||
12mm 4-flute flat end mill, HSS, Uncoated : 100m/min, 10mm Depth of cut, 0.03 FTP (300mm/min), 4mm width of cut, Noisy and spindle only just copes, definitely a maximum |
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! Tool Size || Tool Typetype !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! WOC !! |
|||
FTP |
|||
(feed rate) |
|||
== H-13 Tool Steel == |
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! Comment |
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|- style="background-color:#ccffcc;" |
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|12mm || 4-flute flat end mill || HSS || Uncoated || 100m/min || 10mm || 4mm || |
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0.03 |
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(250mm/min) |
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||Noisy and spindle only just copes, definitely a maximum, use conventional milling only. Limited by spindle power, not tool endurance |
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|- style="background-color:#ccccff;" |
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|5mm || 4-flute flat end mill|| HSS|| Uncoated || |
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40m/min |
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(2500rpm) |
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|| 5mm || 1.5mm || |
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0.02 |
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(200mm/min) |
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|| Good finish, not a maximum could have done more |
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|- style="background-color:#ccccff;" |
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|3mm || 4-flute flat end mill|| HSS|| Uncoated || |
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28m/min |
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(3000rpm) |
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|| 1.5 mm || 1.4mm || |
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0.0075 |
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(90mm/min) |
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|| Good finish, not a maximum could have done more |
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|- style="background-color:#ccffcc;" |
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|2mm || 2-flute ball nose end mill || HSS || TiAlN coated || |
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19m/min |
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(3000rpm) |
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|| 1mm || 0.5mm || |
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0.02 |
|||
(120mm/min) |
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|| Works OK, 150mm/min is too much |
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|} |
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== Brass == |
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===Roughing=== |
===Roughing=== |
||
{| class="wikitable" |
|||
6mm 4-flute flat end mill, solid carbide, TiAlN coated: ''35m/min, 7mm depth of cut, 0.04mm feed per tooth, 0.5mm width of cut'' Width is at maximum, depth might be deeper |
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! Tool Size/type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! WOC !! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ccccff;" |
|||
|4mm 2-flute flat end mill || HSS || Uncoated || |
|||
38m/min |
|||
(3000rpm) |
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|| 1 mm || 1.8mm || |
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0.025 |
|||
(150mm/min) |
|||
||Nice surface finish, almost certainly could do more depth |
|||
|} |
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===Finishing=== |
|||
{| class="wikitable" |
|||
! Tool Size/type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! WOC !! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ffcccc;" |
|||
|1mm 3-flute flat end mill || Carbide || TiAlN coated || |
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9m/min |
|||
(3000rpm) |
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|| 1.2 mm || 0.95mm || |
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0.0022 |
|||
(20mm/min) |
|||
||Too much WOC, breaks cutters |
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|- style="background-color:#ccccff;" |
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|2mm 4-flute flat end mill || HSS || Uncoated || |
|||
19m/min |
|||
(3000rpm) |
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|| 3 mm || 0.8mm || |
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0.01 |
|||
(120mm/min) |
|||
||Nice surface finish, might be able to go a little faster but was making noise |
|||
|} |
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=== Engraving === |
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{| class="wikitable" |
|||
! Tool Size/type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! WOC !! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ffcccc;" |
|||
|60 degree 0.3mm tip engraver 1/8" shank || solid carbide || TiAlN coated || |
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25m/min (calculated) |
|||
(2500rpm) |
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|| N/A || 0.6mm || |
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0.02 |
|||
(50mm/min) |
|||
||Cutter sometimes breaks, probably should try higher rpm |
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|- style="background-color:#ccccff;" |
|||
|90 degree 0.3mm tip engraver 1/8" shank || solid carbide || TiAlN coated || |
|||
30m/min (calculated) |
|||
(3000rpm) |
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|| 0.25 || 0.5mm || |
|||
0.01 |
|||
(30mm/min) |
|||
||Seems to work, could maybe do deeper or faster? |
|||
|} |
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===Slotting=== |
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{| class="wikitable" |
|||
! Tool Size || Tool type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ccffcc;" |
|||
|4mm || 4-flute flat end mill || HSS || Uncoated || |
|||
31m/min |
|||
(2500rpm) |
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|| 1mm || |
|||
0.015 |
|||
(150mm/min) |
|||
|| Using ramp profile, might be able to do more but surface finish is not good |
|||
|- style="background-color:#ffcccc;" |
|||
|2mm || 4-flute flat end mill || HSS || Uncoated || |
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19m/min |
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(3000rpm) |
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|| 1.5mm || |
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0.01 |
|||
(120mm/min) |
|||
|| Snapped tool |
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|- style="background-color:#ffcccc;" |
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|2mm || 3-flute flat end mill || Solid carbide || Uncoated || |
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19m/min |
|||
(3000rpm) |
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|| 1.5mm || |
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0.015 |
|||
(90mm/min) |
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|| Snapped tool |
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|- style="background-color:#ccccff;" |
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| 2mm || 2-flute flat end mill || HSS || Uncoated || |
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19m/min |
|||
(3000rpm) |
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|| 1.0mm || |
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0.008 |
|||
(50mm/min) |
|||
|| So far so good, working up the feed rate |
|||
|- style="background-color:#ccccff;" |
|||
|3mm || 4-flute flat end mill || HSS || Uncoated || |
|||
28m/min |
|||
(3000rpm) |
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|| 1.5mm || |
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0.005 |
|||
(60mm/min) |
|||
|| FTP could be higher |
|||
|} |
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== Low-Carbon (Mild) Steel == |
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=== Roughing === |
|||
{| class="wikitable" |
|||
! Tool Size || Tool type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! WOC !! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ccccff;" |
|||
|4mm || 4-flute flat end mill || HSS || Uncoated || |
|||
20m/min |
|||
(1600rpm) |
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|| 5mm || 1.8mm || |
|||
0.02mm |
|||
(130mm/min) |
|||
|| Cut very well, probably can do more |
|||
|} |
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=== Drilling === |
|||
{| class="wikitable" |
|||
! Tool Size/type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ccccff;" |
|||
|4 mm 2-flute jobber drill|| Cobalt Steel || TiN || |
|||
20m/min |
|||
(1600rpm) |
|||
|| |
|||
0.04mm |
|||
(63mm/min) |
|||
|| Cut well, used pecking profile, probably could have done more feed |
|||
|} |
|||
== "Special" materials == |
|||
=== H-13 Tool Steel === |
|||
====Roughing==== |
|||
{| class="wikitable" |
|||
! Tool Size/type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! WOC !! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ccccff;" |
|||
|6mm 4-flute flat end mill || solid carbide || TiAlN coated || 35m/min || 7mm || 0.5mm || |
|||
0.04mm |
|||
||Width is at maximum, depth might be deeper |
|||
|- style="background-color:#ccccff;" |
|||
| 1mm 3-flute flat end mill || Solid Carbide || TiAlN coated || |
|||
9.4m/min |
|||
(3000rpm) |
|||
|| 0.5mm || 0.5mm || |
|||
0.0022mm |
|||
(20mm/min) |
|||
|| Might handle more but only one test was made |
|||
|} |
|||
====Finishing==== |
|||
{| class="wikitable" |
|||
! Tool Size/type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! DOC !! WOC !! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ffcccc;" |
|||
|20 degree 0.3mm tip engraver 1/8" shank || solid carbide || TiAlN coated || |
|||
30m/min (calculated) |
|||
(3000rpm) |
|||
|| 0.5 mm || 0.15mm || |
|||
0.0026 |
|||
(8mm/min) |
|||
||Too much, breaks the tip off |
|||
|} |
|||
====Drilling==== |
|||
{| class="wikitable" |
|||
! Tool Size/type !! Material !! Coating !! |
|||
Surface speed |
|||
(RPM) |
|||
! |
|||
FTP |
|||
(feed rate) |
|||
! Comment |
|||
|- style="background-color:#ccffcc;" |
|||
|6mm 2-flute jobber drill|| HSS || TiN || |
|||
14m/min |
|||
(730rpm) |
|||
6mm 2 flute ball nose end mill, Solid Carbide, Uncoated: |
|||
|| |
|||
0.02mm |
|||
(15mm/min) |
|||
===Drilling=== |
|||
|| Was in danger of stalling spindle, definitely the maximum size that can be drilled in this material |
|||
|} |
Latest revision as of 12:09, 4 April 2022
All recipes from personal experience and tested on the Boxford 260VMC, Categories of machining are Roughing, Finishing, Slotting, Engraving, Drilling
Recommended surface speeds[edit]
Material | HSS | Cobalt | Carbide |
---|---|---|---|
Plastic | 15 | 15 | Not recommended |
Aluminium | 100 | 150 | 300 |
Brass | 75 | 125 | 200 |
Steel | 25 | 35 | 65 |
Stainless Steel | 20 | 25 | 40 |
Titanium alloys | Not recommended | Not recommended | 15 |
Tool Steels | Not recommended | 10 | 30 |
NOTE : THESE ARE APPROXIMATE RECOMMENDATIONS - YOU WILL NEED TO RESEARCH ELSEWHERE AND GET EXPERIENCE IN ORDER TO PICK SPEEDS PROPERLY - IF THE TOOL MANUFACTURER'S RECOMMENDATIONS DIFFER FROM THIS TABLE, USE THE MANUFACTURER'S FIGURES INSTEAD
Key[edit]
Colour | Meaning |
---|---|
Blue | Not (proven) a maximum, could do more |
Green | A demonstrated maximum, any more will break tools |
Red | Known to be excessive, will break tools |
Aluminium[edit]
Roughing[edit]
Tool Size | Tool Typetype | Material | Coating |
Surface speed (RPM) |
DOC | WOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|---|
12mm | 4-flute flat end mill | HSS | Uncoated | 100m/min | 10mm | 4mm |
0.03 (250mm/min) |
Noisy and spindle only just copes, definitely a maximum, use conventional milling only. Limited by spindle power, not tool endurance |
5mm | 4-flute flat end mill | HSS | Uncoated |
40m/min (2500rpm) |
5mm | 1.5mm |
0.02 (200mm/min) |
Good finish, not a maximum could have done more |
3mm | 4-flute flat end mill | HSS | Uncoated |
28m/min (3000rpm) |
1.5 mm | 1.4mm |
0.0075 (90mm/min) |
Good finish, not a maximum could have done more |
2mm | 2-flute ball nose end mill | HSS | TiAlN coated |
19m/min (3000rpm) |
1mm | 0.5mm |
0.02 (120mm/min) |
Works OK, 150mm/min is too much |
Brass[edit]
Roughing[edit]
Tool Size/type | Material | Coating |
Surface speed (RPM) |
DOC | WOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|
4mm 2-flute flat end mill | HSS | Uncoated |
38m/min (3000rpm) |
1 mm | 1.8mm |
0.025 (150mm/min) |
Nice surface finish, almost certainly could do more depth |
Finishing[edit]
Tool Size/type | Material | Coating |
Surface speed (RPM) |
DOC | WOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|
1mm 3-flute flat end mill | Carbide | TiAlN coated |
9m/min (3000rpm) |
1.2 mm | 0.95mm |
0.0022 (20mm/min) |
Too much WOC, breaks cutters |
2mm 4-flute flat end mill | HSS | Uncoated |
19m/min (3000rpm) |
3 mm | 0.8mm |
0.01 (120mm/min) |
Nice surface finish, might be able to go a little faster but was making noise |
Engraving[edit]
Tool Size/type | Material | Coating |
Surface speed (RPM) |
DOC | WOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|
60 degree 0.3mm tip engraver 1/8" shank | solid carbide | TiAlN coated |
25m/min (calculated) (2500rpm) |
N/A | 0.6mm |
0.02 (50mm/min) |
Cutter sometimes breaks, probably should try higher rpm |
90 degree 0.3mm tip engraver 1/8" shank | solid carbide | TiAlN coated |
30m/min (calculated) (3000rpm) |
0.25 | 0.5mm |
0.01 (30mm/min) |
Seems to work, could maybe do deeper or faster? |
Slotting[edit]
Tool Size | Tool type | Material | Coating |
Surface speed (RPM) |
DOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|
4mm | 4-flute flat end mill | HSS | Uncoated |
31m/min (2500rpm) |
1mm |
0.015 (150mm/min) |
Using ramp profile, might be able to do more but surface finish is not good |
2mm | 4-flute flat end mill | HSS | Uncoated |
19m/min (3000rpm) |
1.5mm |
0.01 (120mm/min) |
Snapped tool |
2mm | 3-flute flat end mill | Solid carbide | Uncoated |
19m/min (3000rpm) |
1.5mm |
0.015 (90mm/min) |
Snapped tool |
2mm | 2-flute flat end mill | HSS | Uncoated |
19m/min (3000rpm) |
1.0mm |
0.008 (50mm/min) |
So far so good, working up the feed rate |
3mm | 4-flute flat end mill | HSS | Uncoated |
28m/min (3000rpm) |
1.5mm |
0.005 (60mm/min) |
FTP could be higher |
Low-Carbon (Mild) Steel[edit]
Roughing[edit]
Tool Size | Tool type | Material | Coating |
Surface speed (RPM) |
DOC | WOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|---|
4mm | 4-flute flat end mill | HSS | Uncoated |
20m/min (1600rpm) |
5mm | 1.8mm |
0.02mm (130mm/min) |
Cut very well, probably can do more |
Drilling[edit]
Tool Size/type | Material | Coating |
Surface speed (RPM) |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|
4 mm 2-flute jobber drill | Cobalt Steel | TiN |
20m/min (1600rpm) |
0.04mm (63mm/min) |
Cut well, used pecking profile, probably could have done more feed |
"Special" materials[edit]
H-13 Tool Steel[edit]
Roughing[edit]
Tool Size/type | Material | Coating |
Surface speed (RPM) |
DOC | WOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|
6mm 4-flute flat end mill | solid carbide | TiAlN coated | 35m/min | 7mm | 0.5mm |
0.04mm |
Width is at maximum, depth might be deeper |
1mm 3-flute flat end mill | Solid Carbide | TiAlN coated |
9.4m/min (3000rpm) |
0.5mm | 0.5mm |
0.0022mm (20mm/min) |
Might handle more but only one test was made |
Finishing[edit]
Tool Size/type | Material | Coating |
Surface speed (RPM) |
DOC | WOC |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|---|---|
20 degree 0.3mm tip engraver 1/8" shank | solid carbide | TiAlN coated |
30m/min (calculated) (3000rpm) |
0.5 mm | 0.15mm |
0.0026 (8mm/min) |
Too much, breaks the tip off |
Drilling[edit]
Tool Size/type | Material | Coating |
Surface speed (RPM) |
FTP (feed rate) |
Comment |
---|---|---|---|---|---|
6mm 2-flute jobber drill | HSS | TiN |
14m/min (730rpm) |
0.02mm (15mm/min) |
Was in danger of stalling spindle, definitely the maximum size that can be drilled in this material |