Lycoming’s engine type certificate included approval of a specific carburetor manufactured by Marvel-Scebler. The carburetor consists of two halves (the float bowl and throttle body), which are connected by hex-head bolts and lock-tab washers. The FAA initially required that safety wire be used to prevent the bolts on the carburetors from loosening. However, Lycoming asked the FAA to remove the safety wire requirement and the FAA permitted it to do so.
Compared with spot welding, clinching, self-piercing rivets and conventional threaded fasteners, friction-drilling screws have many advantages. For starters, they are installed from one side of the assembly. Access to the opposite side of the assembly is not necessary. That’s a real advantage, since the C-frame tooling for clinching or riveting can be difficult to maneuver with a robot.
This is actually a lot more common than you might think. Lots of tech shows (whether it’s cell phones, computer parts, etc) bring "fake" models in. Sometimes it’s just the production case with weights in. Sometimes, when a device needs to be outputting video, what you see is just a movie being played as opposed to its actual output.
brazing is a decent option as well but yea t-slot + friction connectors ~= rigid, I end up drilling and tapping a lot of it
I am full blown tool junkie. I admit it. When Jason requested something about tools my day was complete. When I go to the hardware store, employees smile and hand me things. Things like a 30 dollar “military grade” flashlight. Not sure what a military grade flashlight does, but sometimes curiosity wins and the bank account loses. I could write 1,500 pages on this subject but I promised not to. So, in the spirit of sticking to my assignment, here are five items that make life in the tiny garage so much easier.
Friction-drilling screws cannot be installed with just any screwdriver. Because there are additional variables beyond torque and angle to measure and control—driver speed, axial force and fastener depth—friction-drilling screws require sophisticated driving technology and are typically installed with fully automatic equipment. The driver can be mounted to a linear actuator or, more typically, a six-axis robot.
The first Asian Advertising Congress was held in Tokyo in 1958. Since then, AdAsia has been held every alternate year in various Asian cities. In 1984, competing against Australia in Seoul, Pakistan won the bid to host the 16th AAC in 1988. Since most events in Pakistan are prone to postponements, AdAsia was moved ahead to 1989.
Having built many a prototype board in my day I can tell you I have utilized all manner of odds and ends including not only wood screws but wood as well – I don’t think it means the card is a fake, it may be an engineering prototype or a software development board or whatever. I personally don’t see anything in the photos that screams to me "FAKE" !
Don’t know what people are using for framing any more since most of that is pre-fab now. Back when my house was built they used nails.
Paktel was eventually bought out by China Telecom in 2007 and rebranded as Zong the year after. That rebrand was the beginning of a journey that, within a decade, would make Zong the conqueror of the 4G market in Pakistan. But that remains a story for another day.
When a medical device is profitable, popular, selling well, and meeting all regulatory requirements, it can be tempting to leave well enough alone and focus on new product development instead of improving existing lines through iterative changes.
Positively locates nails and screws with powerful “neodymium” magnets. The magnetic stud finder works like magic.
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