Deep Hole Drilling for Heat Treated Components
Heat treated components are everywhere in deep hole drilling – transmission shafts, hydraulic cylinder rods, landing gear struts, and tooling components all go through the heat treater before or after the bore is machined. The question of whether to drill before or after heat treatment comes up on almost every job. The answer depends on the tolerance requirement, the material hardness, and the part geometry. I have done it both ways and learned the hard way what works. ...