Hybrid View
-
18-07-2017 #1
On Thor I have a 4KW 24K RPM high speed spindle. The torque curve means that generally at lower RPM there is little grunt.
Ive read about some settings on the VFD where it may be possible to increase the performance, at a cost of heat and/or reliability.
For drilling, going to carbide drills, does this allow me the option to drill at 12K rpm?
For mild steel, most of the speeds and feeds are showing 3K RPM max, of course as I increase the speeds I can do more RPM but there is a point that I cant go faster and I am nowhere near the torque curve. Apart from gearing down, is there any other way to deal with mild steel and a Chinese spindle? Different end mills? Adaptive strategies?
Thanks
-
18-07-2017 #2
Mild steel is a bit "gummy" unless you use a leaded variety.
You could use interpolated milling rather than drilling for holes of limited depth?
Have you tried single flute cutters? I know it sounds mad but they are easy to sharpen and I use them on some difficult stainless steel and carbon steel jobs.
Are you using flood coolant?
- NickYou think that's too expensive? You're not a Model Engineer are you? :D
-
18-07-2017 #3
Have you tried a spiral drilling method using a standard endmill ?
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
-
18-07-2017 #4
-
18-07-2017 #5
Yes I think it is (spiral drill method is CamBam speak)
Last edited by EddyCurrent; 18-07-2017 at 03:42 PM.
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
-
18-07-2017 #6
-
18-07-2017 #7
-
18-07-2017 #8
-
19-07-2017 #9
-
19-07-2017 #10
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
RFQ: Large bed CNC Mild Steel (500 x 500 x 50)
By Jono in forum Projects, Jobs & RequestsReplies: 0Last Post: 03-04-2017, 05:05 PM -
HSM Advisor - High Speed Machining feed & speed calculator
By magicniner in forum CAD & CAM SoftwareReplies: 2Last Post: 20-01-2014, 12:57 PM -
eBay: 300W 12V-48V DC High speed air cooled spindle motor for engraving milling
By Swarfing in forum Items On eBay UKReplies: 0Last Post: 16-06-2013, 01:33 PM -
High speed spindle for Sieg X1
By ecat in forum Spindles & Drive MotorsReplies: 8Last Post: 29-03-2012, 08:56 AM -
High speed spindle
By leadinglights in forum Tool & Tooling TechnologyReplies: 0Last Post: 27-04-2010, 09:23 PM
Bookmarks