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9/08/2010 What size stepper motor do I-need. If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
Increasing Torque For A High Speed Spindle Torque, not power, is the most important characteristic for determining the cutting performance of a spindle. Increasing spindle torque for a high speed machining center ultimately affects not only the choice of spindle but also the design of the machine.
1Torque values are shown in inch pounds for aluminum fittings. There may be times when the correct torque wrench may not be available. In these cases you can follow one of the alternate tightening methods listed at right. Please note that these methods are for aluminum performance fittings and adapters. See Bulletin JA14A for steel fittings.
RE: End Mill Jamming in Aluminum during CNC milling Attempts dicer (Automotive) 9 Aug 15 07:45 If the material is gumming up the flutes going faster does no good. You will need some coolant, even cutting oil is better than nothing. I started machining in the late 60's, believe me there are sometimes when you have to cut aluminum like it is ...
13/07/2011 If the torque declines, but the rpm increases inversely to the torque, then that means the same work is being done. This is why you have to back off on the feed or depth of cut as you get up above the sweet spot for your machine's VFD. If fully loaded in the cut at 4000 rpm, it simply cannot cut more at 6000, hence the need to back off.
Next, a layer of fine-grained aluminum oxide provides the effective thermal barrier needed for dry machining and high cutting speeds. A second sandwich layer of abrasion-resistant titanium carbonitride helps control flank and crater wear, while the top layer of titanium nitride provides built-up edge resistance and makes it easier to
The key to achieving the smoother finishes required by many of today’s aluminum heads is using the right combination of table feed and rpm when milling the head. This requires a variable speed table and/or multi-speed or variable speed milling head. Increasing the rpm of the cutting head and/or slowing down the feed rate produces a
Milling and drilling of composite materials for the aeronautics. News International-French. International ; French; 30 Jul 2011. In the present paper, we present the issues around the milling and drilling of carbon-fibre-reinforced composite panels, with a reminder of the material’s specific properties, the technical equipment required, the
10/04/2011 You will need to figure out how much torque it takes to rotate your leadscrews while cutting under load at the maximum feed rate and how much torque is required to start and stop the leadscrew (i.e. inertial force). Fortunately, you can infer this from manufacturer websites with their CNC kits and other people’s builds. You will
The cutting force system in 3D-turning consists of three forces: Fc is the largest force that accounts for 99% the power required, Ft requires very small power because feed rates are very small, and Fr the radial force contributes very small also because velocity in the radial direction is negligible.
A problem relating to the tightening of large bolts is that very high tightening torques are required. Although this can be partly overcome by the use of hydraulic torque wrenches (the reaction of the torque however can be a problem), the use of hydraulic tensioning devices is commonplace for bolts over 20mm in diameter. The method uses a small ...