After giant aerospace companies duke it out for lucrative defense and commercial airline contracts, the subcontracting games begin. Opportunities can be plentiful, but shops in unfamiliar territory can get themselves into trouble when bidding on projects. Machine shops new to aerospace machining should be aware of the risks, not just the rewards. Why it’s daunting…
Cutting tools with vibration control technology can substantially increase machining productivity on almost any machine tool or workpiece. Uncontrolled vibration creates multiple problems in metalcutting operations. Varying forces in the cutting process cause vibration and tool chatter that degrade part surface quality, quickly wear or break cutting tools and damage machine tool components. Passive/dynamic vibration…
Introduction This article reviews ring encoders and frameless resolvers, compares their merits, and presents an alternate approach. It’s especially suitable for engineers designing gimbals and electrical actuation systems for high-performance motion control. Ring encoders and frameless resolvers are generally the engineer’s first choice for accurate angle measurement of large diameter shafts. As soon as a shaft…