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Terrific, thank you. So a (12 x 25 x 1.5 x 1.15 =~ ) 520 MPH airstream might be in the ballpark?

So, if you don't mind my asking, what's the airflow you used?

Perhaps more information might help: The water quench tank contains approximately 2000 cubic feet of water. What would be the volume of air that could provide equivalent cooling?

IRstuff thanks for taking the trouble to run those numbers for me up there. Is there a reason you stopped? Once you know the power involved, will the heat transfer to the air not submit to a similar solution?

I've got racks of aluminum plates-- 1/4 inch thick, about 1500 lbs total-- solution treated to 870F that are then water quenched to achieve T6. Works pretty well if you don't mind distortion effects from the thermal shock. B-( I want to change this to an air quench, but there is a time factor...

anything rollupswx?

Sure thing. I've been fighting this for two days. ipt and idw file attachedhttp://files.engineering.com/getfile.aspx?folder=eba214f0-c8c1-48e4-abee-28ac66d1befb&file=40982050rE-_Grab_hook,_100k.zip

I have a part made up of several lofted surfaces, and now I need a dimensioned drawing, with sectional views showing the dimensions contained in the original loft sketches. One problem is that I cannot project the spline geometry of my lofts into drawing-view sketches, so there's nothing to tie...

This just in: The links are purchased as cold-rolled wire bent into a 'C' shape, mechanically closed and manually TIG welded with filler-metal as recommended by the welding outfitter. They are getting 'porosity,' and failures at the proof-load. The chain (which determines the proof load...

Thanks for the quick responses! This was my fear: that TIG was a bad call made by the folks from whom we bought this process. I know exactly jack about welding, I usually leave welding-spec calls to my fabricators, but in this case it's an in-house process that creates custom chain assemblies...

We have acquired a process that uses a dedicated TIG welding unit to butt(?)-weld 8620 steel chain links. We are experiencing early failure. Can anyone here school me on what a capable process for making good connecting links would look like?

ISZ, The pre-existing system hooks/locks a pair of chocks into the mesh, and the mesh is comfortably over-designed for that. I'm pretty free, within the envelope described and with allowances made for the system being light-weight and unlikely to damage the cargo. Two prototypes have been...

Ding! I never thought of that, Mike!! <starts new free-body sketch>

I'd have no job if reinventing the wheel was outlawed. <grins> Perversely, I'm restricted from *actually* re-inventing anything: I'm required to develop a restraint that uses the existing flimsy floor. It was designed for chocks only, not straps, from which I deduce that it was 'intended' to...

O.K. Why would that be preferred?

I'm working on a system to immobilize cars on flat-beds during transportation. The design envelope is very tight (chock must fit under the 'shadow' of a 24" outer-diameter tire; web-strap on tire circumference IS allowed; system must survive up to a 2-Gee impact repeatedly; connect to the floor...

kenvlach, are you employed in such a capacity that my company could briefly contract your services? NO travel would be required. -andy

oh, and the distorted blanks seem to lead to distorted parts after stamping. They did so on our snafu'ed '-W' condition blanks. There's still some hope that true W's would not do that. Here's hoping, andy

"-T0" means annealed, no heat treatment. "-T6" means solution treated at 870degF for 60+ minutes, drop-tank quenched (not spray) in water and artificially aged at around 250degF for 24 hours. "Natural Aging," begins immediately at room temp, but can be held for a few days if kept cold. We buy...

Don't change your horse (in mid-stream or otherwise). I'm a SW certified expert,' or was 2 years ago before I switched jobs. The new place was addicted to Autodesk, so we got Inv against my recommendation (Keep in mind, before I got my SW cert, I ran Adesk AdvanceModellingExtension for ACAD...