require to join 4130 rod into a 18-8 fitting. Basic strength requirement - like to avoid cracking.
Any comments & / or suggestions for filler rod. Looking at TIG process. Not a critical application - short term / corrosion susceptibility not a factor here..
Lately projects keep getting more difficult with a new twist each time.
I am required to install an antenna Reinforcement to a .032 Thick crown skin. Customer insists on having no external Doubler.
Since aircraft is CAR 23.573b regulated (DTA Analysis requirement)- the following options are...
specifically
PN 6952-x-xx-x / CSK Head
PN 6953-x-xx-x / Prot Head
Encountered these type on an aileron repair. Have no data & have not been able to locate any pertinent info.
Has anybody in our collective fields of experience dealt with these fasteners?
I have never installed one nor seen one...
Lately I have several FAR23 aircraft (Composite construction) (Post Amdt. 45/48) certification that I have to demonstrate compliance with FAR23.571 & FAR23.573 ..
We are not dealing with complicated situations - just a few holes to allow the mounting of Antennas - never the less the analysis has...
Who has the Reference spec for panel pins ATR-150-1875F; ATR-200-3125F;and ATR-250-4375F ... ??
All i can find is a decrepit brochure written by AAR COMPOSITES in pre-2002. Installation & strength allowable values ??
What a wonderful profession !
Involved with construction of Cabin VIP interior monuments (Galleys; Wardrobes; Lavs ..)
Recently learned that Joint (Pin & Insert as well) allowable values are not readily available & each STC endeavor requires another set of Coupons to be sent out for testing.
-...
Involved with a Rush job that requires installation of a 100+ feet of Longitudinal Floor rail + Brown track to secure custom seating & monuments. A typical procedure would be to duplicate the existing OEM rail installation adjacent to the proposed installation butt-line. The OEM rail...
Recently encountered a Boeing Design Manual Reference (BDM6830)... That provides the stress value on a frame given cabin differential pressure & various Frame / Stringer / Skin Material properties & Dimensions. Until - i can evaluate further - it seems an intriguing methodology to be used in DTA...
My recent peeve is when i change layers ..
I would prefer all the properties change to the same settings as the default layer setting ..
> presently when i change layers .. all that changes is the layer name with colour & other properties remaining the same as the selected line (color, scale ...
Don't u just hate it when Mathcad interjects into a worksheet/calculation and assigns a constant or universal units to some variable in the calculation. This thereby leads to me wasting time going thru every line and determining where the error is ..
- I would like the UNITS tab have a checkbox...
In dealing with a Shear / Moment Diagram .. came across this expression ..
V(x) := R - (x > a) * W
never seen a ">" or "<" operator in an equality expression like this ..
How does this work ? does it multiply W only if x > a ??
else V := R if a >= x ?
if (x > a) is true (=1) then V = R-W
else...
Recently performed a weld repair to a solid 4130 1/2" dia shaft. My initial direction was to Weld / fill the chafe damage on the side of the shaft & perform a post-weld heat treatment to restore to original condition. It was brought to my attention that this was not an acceptable process. Say...
Lately been inundated with requests for criteria / requirements / specifications for materials / procedures / and guidelines for installation of vinyl film to the exterior surfaces of aircraft such as Company decals / logos / advertising. Companies that deal with these products / services do not...
DS never fails to disappoint me when it comes to toolbars. After i arrange my custom toolbars & icons to my liking ..
either some DS update (or lately playing around the menu customization) - crashed the entire startup & had to reinstall the default toolbars
Things i know .. deleting...
Require a comparison of Kt values for a straight hole vs Fastener holes for NAS1097 / MS20426 Heads. Also does the Kt value change if the fastener is installed? I believe the interface between the bottom of the CSK and the straight bore is significant. Also Briles (+ Aerolok) types are an...
We are applying a .050" THK Ni-5%Al HVOF coating on a structural component & require to establish various design criteria & require the material properties for this "sintered" material. Would anyone have data sheets on HVOF applied Ni-5%Al material?
In particular we require ultimate / yield /...
We are revising our IN-House Engineering Documentation so that we can make use of Electronic signatures / graphic capabilities & move away from hand sketches. An attempt to move towards the 21st Century technology.
I would like to open up discussions of what works & what can be improved upon...
Situation:
Have a 7 Foot length of curved Sheet .063" THK - 6 Inch radius made from 6013-T6. (Aerodynamic leading edge) Require to remove a damaged section (ie: 5" Diameter)from anywhere on this surface. Propose to cut out & weld in flush filler of same material.
Problem:
-What will be the Post...
Wanted a recommendation for a software program where i can model electric lights, multi-contact relays, switches, and a limited mechanical system that opens / closed these switches.
This would facilitate the discovery of any conflicting or unexpected operations ie: shorts or 'locked'...
Can anyone suggest a procedure to flange a cutout hole in thin-sheet metal.
ie: 5" Dia. Hole with .25" lip at 45 degrees around the circumference of a round (or sometimes oval) cutout. (a.k.a. Lightening Holes)
Any suggestions would be useful ..
