If you are in the area and have 45 minutes of free time come by and watch. You will probably learn something. There will also be coffee and some sort of pastry.
If you are wondering what I am going to talk about it's all in the title. Basically, I have spent the past year and a half learning how to make finite element models and heat treat them. All sorts of crazy things happen when you heat up and cool down steel at different rates and add carbon to the mix. Before you know it you have a $50,000 gear that likes to turn into a potato chip. So I have worked on simulating the process and trying to have the exact distortion results in my simulations that have been measured on the gears.