IanSathornCorp
Plastic
- Joined
- Nov 6, 2017
Hello there, just posting a question regarding start parameters from different tool manufacturers. I almost never use the start parameters because most of the time the feed is simply too high for any application I'm using. Does anyone have any possible wisdom about how to use the start parameters in conjunction with common sense? For example, roughing a pocket in 6061-T6 with a 3/8 3 flute, 5/8 stub length, 50 percent stepover, 1/4" depth of cut. Off the top of my head I would generally start around 65 inches per minute at 12,000 rpm in a new Haas vf-2. Rego-fix hydo holder. Using water based coolant.
Now, the parameters from the book say
.0075-.0112 chip per tooth for side milling. Axial = equal to or less than 1xD
Radial = equal to or less than .5xD
CPT 2-3% of diameter
So if I go middle of the road CPT its .0093
So if you do 12000x3x.0093 = 334 IPM
Hmmmm common sense wise you think that is going to work out well as a START parameter?
Please let me know what you think.
Thank you
Ian
Now, the parameters from the book say
.0075-.0112 chip per tooth for side milling. Axial = equal to or less than 1xD
Radial = equal to or less than .5xD
CPT 2-3% of diameter
So if I go middle of the road CPT its .0093
So if you do 12000x3x.0093 = 334 IPM
Hmmmm common sense wise you think that is going to work out well as a START parameter?
Please let me know what you think.
Thank you
Ian