Deep Hole Drilling Trials and Tribulations

deep hole drilling

Deep hole drilling (DHD) is a stress measurement technique used in engineering materials and components to measure locked-in and applied stresses. The process measures residual stresses at a microscopic level with penetration of over 750 millimeters (30 in), without destroying the original component.

Advances in engineering technology have given common CNC machining centres gun drilling ability up to a certain depth-diameter ratio. Roundness and surface finish are among considerations. Common applications of deep hole drilling and machining processes include Continue reading

Flying Car Goes Back to the Future

DeLorean flying car

Img source: deloreanaerospace.com

Technology is at the point where talking about a flying car should come as no surprise. This can be attributed mainly to the new lightweight material, improved batteries, advanced computer technology and controls. According to reports, DeLorean Aerospace is in the process of developing a two-seater VTOL aircraft called the DR-7. This puts Paul DeLorean in a whole new category along with Airbus, Uber, Darpa and the likes of Larry Page.

The DeLorean is best remembered for the time-traveling sports car from Back to the Future films piloted by Doc Brown. Who would have thought his quote would Continue reading