I think studdable snow tires as in the picture above //may// not have rubber quite as fancy as the stuff used in the outer 75% in studless tires.
Tire Rack says the three peak mountain snowflake 3PMSF symbol only indicates testing of acceleration on medium packed snow.
A grade ≥ 110% of an...
https://fortunetireusa.com/tire/tormenta-lmd-fsr103/
Tread-wise they look like a typical no-season tire to me.
- Got the fairly meaningless M+S rating ( just based on "open" tread area I think ).
- I think the "3-Peak Mountain Snowflake" (3PMS) rating requires passing some (Packed?) snow...
In my current industry with pressure vessels, high temperatures, long service lives, and an occasional "puff" ( explosion ) 10% elongation is the bare minimum.
Back when I was riding my fabrications like a pony through the woods I would not consider anything less than 20% elongation.
" I know...
Others have covered fancier machining methods manufacturing well.
"a little bumpy line" leaves me with several un-answered questions.
Who designed this part ?
Maybe a brain-storming design review session could help mitigate the manufacturing difficulties...
The "1 plus diameters of engagement" "rule" is mostly to allow developing the full strength of the fastener.
For high strength steel bolts in aluminum ( or worse ) threads the recommended/required engagement can be more than two diameters.
The working loads from a few 1000 psi hydraulic...
On Nov 11 OP (that's me!) wrote -
I'd like to confirm if there is a complete coating of silver solder on both of the fracture faces.
Is there an etchant that will differentiate between the steel/iron and silver solder?
I guess I should have said silver brazing filler metal.
-------------...
The brazing dudes feel they may have isolated the problem to a particular batch of commercial silver solder sheets.
The Tier One alloy supplier is now involved. They will be evaluating a couple of sheared hammers, pads, and the suspect batch of silver solder in their lab.
More news at 9:00.
The shop just brazed 170 assemblies . Only 2 failed.
Recall previously 27 of 34 failed, and at very low test pressure.
More news at 11:00.
thanks all.
Dan T
From Alro steel. Alro.com
"Cold Drawing
Cold drawing is the most common of the cold finishing methods. It starts with a hot rolled bar that has been
descaled and coated with a lubricant. The bar is then pulled through a precision die that is dimensionally smaller than
the hot rolled bar. Cold...
The foundry uses the E81T1-Ni1C flux core as their standard for cast steel.
Thanks for the wire recommendation. We are pursuing "lesser" weld materials.
We have some 6000 lb A27 Grade 60-30. 5-7" thick. They have some defects less than .5" deep that are excavated and then weld repaired with E81T1-Ni1C flux core MIG. 100°C to 200°C preheat. PWHT 600°C ±40 °C.
Machining the large bores has problems that the machine shop says act...
The silver braze is .010" thick sheet cut to size, dipped in flux, and then placed between the components prior to heating.
No reliance on capillary action drawing the silver into the joint.
There are three Ø3/16" drilled visible in the steel hammer faces.
I figured those holes were an attempt...
What is the design of the packing gland ?
Is it adjustable ?
I've seen adjustable packings tightened to the point the shaft wouldn't move, or the packing grabbed the shaft and spun, or smoke was billowing from the seal .
We've been induction heating some 15 lb parts to join them with silver solder for years.
There have been issues from time-to-time over the years, but for some time now the joints have been consistently strong.
Yesterday 34 assemblies were "shear tested", and 27 failed at surprisingly low...
By inspection I think those tight bends will cause cracking depending on the material and the orientation .
Transverse direction is more vulnerable to cracking in rolled plate.
The loading in service will determine if fatigue failure is a consideration, and that can have profound effects on the...
