Kennametal has introduced its next generation 3D printed stator bore tool for the machining of aluminum engine housings for electric vehicles. This latest version of the tool features a newly designed arm structure, a larger center tube made of carbon fiber, and a further weight reduction of greater than 20 percent over the original design.
Manufacturers need to measure and quantify the causes of unproductive time so they can optimize their efficiency. Machine Monitoring from Seco provides them with the data-driven knowledge they need to not only manage production efficiency, but also increase both output volume and product quality.
Mitsubishi Heavy Industries, Ltd. (MHI) conducted a comparison test between the super skiving cutter and the pinion skiving cutter used in the conventional skiving process and the test results are reported here.
Manufacturing involute gears using form grinding or form milling wheels are beneficial to hobs in some
special cases, such as small scale production and, the obvious, manufacture of internal gears. To
manufacture involute gears correctly the form wheel must be purpose-designed, and in this paper the
geometry of the form wheel is determined through inverse calculation. A mathematical model is presented
where it is possible to determine the machined gear tooth surface in three dimensions, manufactured by this tool, taking the finite number of cutting edges into account. The model is validated by comparing calculated results with the observed results of a gear manufactured by an indexable insert milling cutter.
Recently, a new type of hob with carbide inserts has been introduced, providing higher cutting speeds, longer tool life and higher feed rates when compared to re-grindable, high-speed steel hobs. But with this kind of hob, new challenges occur due to positional errors of the cutting edges when mounted on the tool. These errors lead to manufacturing errors on the gear teeth which must be controlled. In this paper, the tooth quality of a gear manufactured by hobs with different quality classes is analyzed using a simulation model in combination with Monte Carlo methods.