Yes I see how the print is describing the part now. I guess because they showed the "gage" line as a solid line I thought that is where the taper terminated, but I see that is not the case. So in your reference picture, does the dimensions "D" to the gage line have a tolerance, or would it...
I have two parts that locate on conical tapers. Attached is the female taper, which they define by calling out the diameter at the narrowest location, followed by the angle. This part already exists and is not made by us. What would make the most sense in terms of where to call out the...
The usual convention shown for dimensioning holes located on a bolt circle is by assigning a basic dimension of the angle between the holes times the number of instances. My question is would it be valid to have the basic dimension be the relative center distance of the holes rather than using...
Let's say you have a cylindrical part. When looking down the axis of the part, along the circumference picture several round "ears" protruding. At the center of each ear is a hole (imagine this part as being a casting).
The problem is I'm not sure how to dimension the bolt circle of the...
Lets say you have a cylindrical part with two different pilot diameters on each end, and tapped holes on both faces of the part. What is the proper way to locate the holes on each face of the part? I can see a few scenarios:
1.) You have four datums total. The two surfaces which the holes...
I've noticed for several different manufacturers of AC motors, the fan design looks something like this:
https://www.galco.com/buy/Baldor/36FN3000A01SP?source=googleshopping&utm_source=adwords&utm_campaign=&gclid=EAIaIQobChMIyeqA84Oh5AIVAQOGCh0jDASdEAQYBiABEgJ57fD_BwE...
I've searched several other threads that seem to agree A380 is considered a ductile material, in which case it would obey failure theory under MSS or DE criterion. If that is the case then its shear strength should be .577Sy or .05Sy. However, when I look up properties for A380, several...
My guess would be the head of the bolt would dig into the aluminum as the bearing stress begin to exceed the yield strength. although at some point I would think the aluminum would reach some elastic limit where it could not be pushed in any further, at which point the stress in the internal...
If I had a steel bolt being threaded into a tapped hole of a softer material, aluminum for example, how would I go about calculating the maximum allowable torque on the fastener assuming I have enough thread engagement? In this scenario, the only failure I can see is the internal threads in the...
Can the CF call out be used to describe the dimensions of features along the circumference of a circle? For example, an evenly spaced pattern of "tabs" that share the same O.D. In the Y14.5 standard it says its used to "identify a group of two or more features of size where there is a...
Sorry, I guess I don't understand, but wouldn't zero perpendicularity at MMC be adding an even more stringent requirement (at least for part of the tolerance band)?
I looked around and couldn't seem to find anything in the Y14.5 standard that gives any sort of guideline on applying perpendicularity to very thin features. I would think at some point it would become non-sensical to do so because it would become impractical to try and measure it. But how...
What I meant by that was, if the ring is not "perfectly" flat to begin with in its 'whatever has been produced' state, I'd expect any variation there to be insignificant, such that when its being pressed against the flat surface it would only bend a relatively small amount.
Which leads me back...
Most likely in the free state, the only restraining forces would be the interference between the I.D. of the tube and the O.D. of the tabs on the ring, which isn't enough to deform it enough to affect its function.
Here is a photo of a similar part.https://files.engineering.com/getfile.aspx?folder=ef9101fc-95b4-4778-b9bc-37dbf55e13a0&file=IMG_20190409_124352413.jpg
I have a part that is .036" thick, which essentially looks like a ring with tabs around the circumference of the O.D. (part is about 2.3" diameter on O.D., 1.75" I.D.). The tabs are angled slightly to give a lead-in because the part fits inside a tube with a slight interference. The flat ring...
Customer used this pump for several months, then one day says it wouldn't prime. The internal bypass for this pump has an adjustable set screw that seats a ball/spring combination. They took out the fittings in the bypass, jammed in a grease zerk and cracked the housing (probably because the...
Assume a set up in the attached PDF, where you have two twin loads acting on a beam that is welded to two hook ends which are simply supported and not constrained. How would you approach calculating the bending moment at the joint where the beam is connected to the hooks? In my opinion, you...
So essentially you are saying to make the assumption the forces act perpendicular to the HSS like this? And then use the spread to find the forces using M/1.16 = F?
If that is what you are suggesting that is how I initially approached the problem, but then I thought about an eccentrically...
