Hi, I am looking at Aluminum 4032-T6 and 4032-T651. From what I understand, both processes are the same with the exception of stretching process for the T651. Since the material is stressed by 1-3%, would that affect the yield strength and/or ultimate strength of the material?
How do we know...
Hi,
I have an application where two aluminum plates (6061) are joint together by screws. One plate has a counterbore hole while the other plate has a threaded hole. I haven't decided on the screw size yet, but it will be between 1/4-20 and 1/2-13.
The plates will be subjected to 250C with...
I have a question about press fitting plastic part. On the drawing, the customer calls out for a fit per ANSI B4.1 FN2. The parts are both made from plastics (Vespel). Would it be appropriate to use the tolerance limits from table 11. ANSI Standard Force and Shrink Fits? The customer doesn't...
Hi,
Imagine if I had a plate of stainless steel 316L 1"W x 5"L x.25" thick. On top of the stainless steel plate was a small graphite sheet with the same size and only .04" thick.
I put them inside a furnace and applied pressure (8 psi) of both side to keep them together. I ran the furnace up...
This is a hypothetical example, but it is applicable to a lot of my company's parts. I would like to get a better clarification on this.
We use ASME Y14.9-2009. Attached is the drawing to give a better visual representation.
Basically, if I have a plate with a pocket that calls out .040...
Hi,
I am trying to take a thermal image of a glass plate inside vacuum. The back of the plate will be heated using a heater. A thermal camera, outside of vacuum, is used to take the picture of the glass plate through a small ZnSe windows.
The problem is that the glass plate surface is smooth...
I am having problems with press fitting tolerance. On a drawing, it is called out to press fit a dowel pin per ASME B4.1 FN 1, so I looked up the table for a .250 dowel pins. According to the table, my interference should be from .1 to .75 thousandth of an inch. Now, is this interference for...
Hi engineers,
I have a question regarding about specifying datum feature at RMB. What are the advantages of having a datum shift since we are not getting any more or less bonus tolerance? Wouldn't it complicate the inspection process since the part can now move (shift) around?
There is an...
Hi,
I have a question related to center of a circular feature with big tolerance. Please refer to my attachment for better clarification. If Datum B is chosen to be a Datum feature, and it has a tolerance of +/- .020. The 2.500 circle has a true position callout for a .004 diametrical...
Hi,
I used the Parker o-ring handbook for most of my o-ring groove design. I just have one question regarding different o-ring width.
What is the advantage of using a smaller or bigger o-ring? Imagine if the ID of the o-ring groove is 1 inches, is there a different if I use a 1/16, 1/8, 3/32...
After reading a lot about coaxiality and concentricity, I am still having trouble understanding them, and when to use one or the other.
From what I understand, concentricity seems to include coaxiality, and it is really difficult to measure. However, I still don't see what possible outcome that...
Hi all,
I have a piece of stainless steel 63 x 43 inches and 1/16 thick. It has a lot of .06 holes on it, similar to a vacuum table. One face is held down vacuum, and the other face is being heated to 150 C uniformly. After being heated, the heated face is distorted. I would like to find a way...
