How much can we trust our understanding of how things work? There was a special joint web ex meeting this week between two AGMA committees that got...

Continuing my rant on disruptive employees: a few posts ago I mentioned the ill will I engendered early in a new job by questioning the large perce...

The American Gear Manufacturers’ Association [AGMA] will celebrate its 100^th Anniversary in 2016. The party will begin with the Fall Tec...

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...

I would like some instructions for setting the degrees and minutes on a Liebherr or Barber Colman hob. Our machines use a Vernier scale to match the lead angle of the cutter to the part to form straight teeth. There is a dispute on how to do this task, and I wanted insight from another professional.

Generating gear grinding is one of the most important finishing processes for small and medium-sized gears, its process design often determined by practical knowledge. Therefore a manufacturing simulation with the capability to calculate key values for the process — such as the specific material removal rate — is developed here. Indeed, this paper presents first results of a model for a local analysis of the value. Additionally, an empirical formula — based on a multiple regression model for a global value describing the process — is provided.

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