However, in the case of a trochoidal
gear profile, enlarging the rotor tooth width lowers the charging efficiency of the volumes between the inner and outer rotors, and increases the susceptibility to cavitation.
The El Reno tornado moves northward, then becomes nearly stationary/looping near 1-40 for ~400 s from 2328 to 2335 UTC, and then moves eastward for several minutes until becoming nearly stationary or looping again while dissipating at 2345 UTC, suggestive that the larger circulation is itself moving in a trochoidal
fashion inside a larger mesocyclone.
Automatic path generation for trochoidal
and plunge milling are features on the more sophisticated controls, requiring only the entry of a few values on an "open groove" type setting.
Other Mastercam X2 features include automatic toolpathing, which imports designs and automatically applies predefined machining strategies to jobs; added selection tools to streamline everyday programming; a surface extend function, which can extend both trimmed and untrimmed surface edges; and trochoidal
motion in high speed tool paths, which assists machining of harder materials.
In recent years, machining strategies such as trochoidal
and morph cutting have been introduced in attempts to mitigate the negative impact of tool overload.
There is also a trochoidal
machining option, which avoids full-width cuts when the cutter encounters heavy engagement.
Mastercam Mill Version 9 software from CNC Software delivers high speed pocketing and increased machining options, including full trochoidal
machining (moving the tool in small circles that can nibble out the entire pocket so the tool is never buries), according to the company.
* Mastercam Mill--Version 9 is said to deliver high-speed pocketing and increased machining options such as: full "trochoidal
" machining, moving the tool in small circles that can "nibble" out the entire pocket so that the tool is never buried; Finish Project Toolpath, a function that is said to deliver a consistent finish that follows the natural curves of "unlimited" surfaces or solids; Toolpathing with Custom Plunge Roughing, a function that lets users machine in any pattern; Hybrid Machining, a new function said to change cutting strategies with model slope changes in a single toolpath; and Tool Containment, a new 5-axis resource that reportedly enables cutting of difficult internal areas.
That is, many operations are using trochoidal
milling approaches, which means that there is a constant maximum chip thickness and a short arc of contact, which results in high feed rates, minimal vibration, and long tool life.
 Soichi Ibaraki, , Iwao Yamaji, Atsushi Matsubara, On the removal of critical cutting regions by trochoidal
grooving, Precision Engineering, Vol.
An optimized trochoidal
path in NX 3 Machining ensures that the intended metal removal rate is maintained throughout the toolpath.