Hello everyone. I hope someone can help me out.
I've got a customer drawing of a part that states in the notes:
1) Material, fabrication, and examination to be in accordance with ASME boiler and pressure vessel code section III division 1, subsection NF for a class 1 linear support.
2) material...
I've got an insulated 2 Part ev chamber. One part of the chamber holds many blocks of dry ice, the other part holds the test specimen to be cooled. 2 insulated ducts with fans push and pull air through the chambers circulating the cold air.
After a day of circulating the cold air the AIR...
Hey everyone, got a question regarding the shear strength of 316 Stainless Steel.
I have a design that utilizes a punch press of sorts. Basically it is a load limiting device that breaks at a certain load.
The loads are quite high and the parts are huge so the shearing "plates" have a radial...
Hello all,
I have a large diameter part that needs to be made from PEEK (Temperature, radiation environment) and our purchasing department came back with several quotes, one was for 6" diameter x 3" lg "pucks" of PAEK material. What I've been able to find out online is that PAEK was the...
Hello all,
I've got an application where a connection needs to be made to a component that is at 700°F. I'm looking for a barrier material that with a low conductivity that is also able to withstand the bearing loads applied. Basically a bracket made from 17-4PH stainless will be bolted to...
Can 7075-T7351 aluminum be forged? I haven't found any literature that specifically says that it can't. Does anybody have any experience with this? If it can not be forged is there a suitable temper in 7075 that can be? Thanks for your input.
Hello all. Just need someone who has the full ASME BPVC to help me out with some material info. Could you tell me what the Maximum allowable Stress Value (Sm) for 15-5PH stainless bar (S15500 (XM-12)) is? I do not have this part of the spec and just want to compare this material to another...
Hello all,
I'm looking for a good extensometer. There are many companies out there and all say the same thing "ours is the best". I figured I'd bring the question up in this forum with people who use these constantly. The material we are testing is NiTi. Standard .35" dia, 1.4" gage length...
Hello all,
I'm new to working with SMA's so bear with me. I've got this question out to SMA suppliers already and am awaiting their response, but i'm impatient... What's the largest bar stock OD that can be supplied in SMA? I'm looking for something in the 1" to 1-1/2" O.D. range...
Hello all,
I have a customer who requires a unique Identification barcode electroetched onto parts we make for them. This isn't a standard barcode though it's one of those 2D barcodes. We have the equipment and the know how to make the electroetch templates, we just need the software to...
Hello, I'll start with my general question and based on the response provide more information. Here's my situation, we have an older Okuma lathe. The indexer has faulted. The indexer is driven by hydraulics and the problem seems to lie when the cylinder is supposed to go to slow speed so that...
Hello all,
I've created a 3D simulation of a system I'm working on. I can easily output the main bodies rotation (all three axis) and translation (x,y,z). Getting my program to keep track of points on the body is a pain. I'm thinking that I can just write a matlab program that uses the points...
Hello all. The answer to this might be right in front of me, but how do I change the result coordinate system in workbench? Basically I have a torsion spring (of sorts) and am applying a moment to it. I've inserteda cylindrical system already. My problem is that I want to see the angular...
Hello all, I'm looking for a manufacturer who makes a Stainless Steel, 20mm bore plain speherical bearing with a swageing groove. I've done a simple google search but all the american companies that pop up don't offer this design and want to custon "design" this for me. My thought is that...
Hello all. I need to design a quick and Simple torsion spring tester.
About the spring to be tested:
-Deflection angle required = 105°
-Anticipated Torque required to rotate to 105° = 70 in-lbs
-Number of cycles needed = 100k
My idea (by no means am I thinking this is the best way, but...
Hello all. I'm looking for a manufacturer of pressurized welded metal bellows accumulators (WMBA). A few years back I had found a company on the internet that had a catalog of stock WMBA's with different fluid capacities and precharge pressures. I can not locate it online anymore. Does anyone...
Hello all. I recently switched over to V11 and one thing I'm noticing is that I have to use a probe to find the working loads from by bolt pretension loads. I'm slightly annoyed by having to set up a probe, but there's another issue i'm having. In the actuall bolt pretension load I'm applying...
Hello all. Here's my situation:
I've got a customer who manufactures seats for big rigs. The drivers of these rigs occasionally will see large shock events (~2-3 g's). The customer wants to install a system of accelerometers that continously records accelerometer readings from the seat...
Hello all. I'm a mechanical engineer with no experience using magnets and need some help. Here's what I'm trying to do:
Small scale TMD that needs to be tuned to a certain frequency (Tuned Mass Damper, basically just a mass on the end of a beam suspended in damping fluid, inert silicone)...
Hello all. I've been looking around for a formula for the radial expansion of a helical rectiangular cross section spring for quite some time now without success. I have an application where knowing the expansion is critical as I need to use as much OD as possible for stress reasons. I've...
