Once you commit to developing the talented team members your business needs, how do you decide who to invest in? The “washout rate” at professional...

Unless it is your team being robbed, you probably hate having a live broadcast interrupted by a video review. We sometimes feel this way during a d...

In the world of custom manufacturing you have to deal with less-than-perfect parts. There is just not enough time or pieces to dial in the producti...

The objective of this work is to introduce a method for the calculation of the tooth root load carrying capacity for gears, under consideration of the influence of the defect size on the endurance fatigue strength of the tooth root. The theoretical basis of this method is presented in this paper as well as the validation in running tests of helical and beveloid gears with different material batches, regarding the size distribution of inclusions. The torque level for a 50 percent failure probability of the gears is evaluated on the test rig and then compared to the results of the simulation. The simulative method allows for a performance of the staircase method that is usually performed physically in the back-to-back tests for endurance strength, as the statistical influence of the material properties is considered in the calculation model. The comparison between simulation and tests shows a high level of accordance.

Reduced component weight and ever-increasing power density require a gear design on the border area of material capacity. In order to exploit the potential offered by modern construction materials, calculation methods for component strength must rely on a deeper understanding of fracture and material mechanics in contrast to empirical-analytical approaches.

My consulting practice covers a very wide range of products — from 4-inch circular pitch mill stands to 180-NDP handheld medical devices — I see th...

A friend of mine is the inspection department for a custom machine shop. He is also the process engineer and, occasionally, a machine operator. Rec...