I'm looking at sheet 4 of NASM1312-13 [REV 2] and it indicates the height of the fixture from the bottom of the fork to the top of the BLADE is to be "4 "S" MAX".
This makes for very thin test equipment. Is it possible this should be "4*[dia]D", "4"T"", or "4 "W" MAX"? anyone have any experience...
We currently passivate our cres item in accordance with the ASTM A967 and use a Citric Acid Method. NORMALLY, we passivate Cres 300 series and 17-4ph. Our passivation operator mistakenly put some Titanium items in the Passivation process- which we don't normally do.
1. They were immersed...
Need to stamp a cres bracket. Currently, plan is to use Cres 301 and material thickness is ~.030". Bracket will circle approx 200 degrees and cradle a ~1"od x 1" thick slug. SLUG will have a groove machined partially about its diameter midway across its thickness. A dimpled feature of the...
Situation: 17-7PH Condition A, (already formed) parts were supposed to be heat treated to TH1050. SHould have turned out ~R40C.
Were instead age hardened to H10150- ~R28.
No concrete hardness was dictated by the customer's spec.
We just did not want to use in Cond "A". (Re: thread 294988...
Application: Have a 17-7ph stamped bracket supplied in condtion "A" in accordance with AMS5528. Its final finish will be CAD plated TYPE II, class 2 per AMS-QQ-P-416. Bracket requires identification stamping on the flat portion. Q.?: IS HEAT TREATMENT prudent other than the ANNEALED condition...
We have 17-4ph PARTS (originally made from soution annealed (AMS 5643) stock) that were supposed to recieve "HEAT TREAT TO H1075 (31-38 RC) FOR 4HRS-4:15MIN". In actuality, they accidentally received "HEAT TREAT TO H900 (40-47)" The result was "ACTUAL RC= 46.4". Can we just re-heat these parts...
Have: 17-4ph 1/4 dia. pins, Age hardened to HRC40 Min.
Parts subsequently CAD plated type II, CLass2 IAW AMS-QQ-P-416. Hydrogen embrittlement relief carried out for a minimum of only 4 hrs IAW 3.4.1 of NAS1332 ILO 8hrs as spec'd by ...P416. Parts were HRC40 min prior to Age harden.
As...
We have a requirement to ZINC plate an item per QQ-Z-325, Type II, CLASS 3. (spec now cancelled). What TYPE, Class, etc. per ASTM B633 would replace it.
Currently making a product of 4130. Is a .312" dia. shaft and H'treated to Rc32-37. Useable length is ~9.25". An additional .81" extends into and gets button welded in a HANDLE. HANDLE starts out as a straight piece at .56" dia. X 1.25"lg, reducing to .375" dia. for approx 3.75". It is also made...
Given: Raw Material 17-4ph (AMS 5643- Solution Annealed).
Parts fabricated & then aged to H900 for 1hr. (Result Rc 42.3 - As expected. Only problem: Was supposed to be H1075 for 4 HRs!!! Can we just re-run thru [CORRECT]
aging process as is?
3.3.8 of NAS1332 requires that HANDLES be completely welded to the HEAD. 3.6.4 of same says "Brazing of components, when required, shall be in accordance with ...AWS C3.5.." AWS C3.5 "Specification for Induction Brazing" is listed in 2.1.4 Standards (of NAS1332).
Therefore, can HANDLES be...
Have a part made of 17-4ph. Will receive (2) [solid bar]
handles welded to it so that it will look like a "T" configuration. Plan to weld first, then heat treat, then grind. Passivation in Citric Acid is planned as the final operation. Normal rinse is plain old clean water - no sodium...
I need to shear test samples from a heat treat load.
Requirement is Inspection level S3, AQL 1.5 non-conforming.
If the customer's order is 2 parts, it seems I need to make (10). (2)to ship and (8) to shear test. - right?
What if the order is for (1)pin? There is no table listing for (1) piece...
1. Can 6AL-4V be heat treated to a minimum of 160,000 KSI?
2. If so, how can I calculate what its shear strength
should be for the following case:
Let's say I need to produce a 4" long shaft made from
such material 1/2" in diameter and with a 3/16" hole
drilled end-to-end along...
