We receive PSD curves for our vibration specification requirements. The curves are given for each axis (X,Y,Z). I have always set up a linear dynamic study for each axis (one study for X, one for Y and one for Z) and ran a study for each axis. I then look at the stress for each axis to make sure...
I am designing a part with a 13/16 thread. I originally called out 13/16-32 UN 2B. The mating part was difficult to assemble because of geometry and was hard to engage because the thread size was so fine, and any small foreign object debri would make it bind. I decided to change the thread to...
Is there a standard for the color of dimensions on drawings? I have always used black for my dimensions, but recently we have been looking at using blue dimensions. I was curious if there is a standard practice for this, nothing in Y14.5 2009 that I could find.
I have a part that is made of steel that I want to press fit into a part that is made of anodized aluminum. The shape of the press is shown in the attached image and the dimensions are roughly 0.5" x 1.5". My question is on how to tolerance each part. Should I simply use the machinery's handbook...
I think this is right but I am hoping to get some input. I have two parts (part1 and part2)that mate to eachother via a pin and hole (datum B) and a diamond pin and hole (datum C). Each part is aluminum and I am using tightly toleranced bushings for the holes in part1, and a tight toleranced pin...
I saw a callout for how 3 diamond pins can be used to center two parts relative to each other Link (also attached screen shot). I am trying to wrap my head around how using this 3 diamond pin design is any better/more accurate than simply using a pin and slot design.
My application is...
We use fully annealed C10100 copper tubing as a pinch off tube for hermetic sealing applications. The tubes we are receiving have already been soldered into a housing, and then a mechanical abrasive is used to rub off the oxides created during soldering. On the tubes that we are receiving, we...
Does anyone have a good reference for acceptable torque values for retaining rings?
For fasteners it is pretty straight forward to calculate the stress on the screw for a given torque, and there is a lot of information online about it also. An example is on this site:
Link Some of our...
My coworker recently made a drawing that has a section view. The parent view for the section view however, he put off to the side of the page, so that it was not visible and that if you printed the drawing or saved a pdf it would not show up (see attachment). The reasoning behind this was to...
I have two mating parts, Part A and Part B. Lets for example look at the #1 tapped features (circled red part A). To calculate out the diametrical positional tolerance, I took the thru hole of Part B (.081) subtracted the OD of the #1 screw (.073) and divided by 2 -> (.081 - .073)/2 = .004. I...
I have an assembly model in SW. I have a couple of configurations for this assembly. When i change the assembly configuration, is there a way to have the individual part configurations change also? I want a part configuration to be linked to the assy configuration. All i have been able to do is...
I know there is a lot of discussion about holes for datums, i think i read them all, still a little confused. I have this part (see pic) that has 4 thru holes that bolts go through and meet up with tapped features on a different part. is the way i have it correctly dimensioned (only talking...
I was sitting in a review and someone mentioned that certain alloys are unable to be electroless nickel plated. I did some research and was unable to find anything about alloys not being able to be plated. Does anyone know if/why there are alloys incapable of being electroless nickel plated? Thanks
I am drawing up a component that will be made of titanium. The component is part of a housing that will be under vacuum and during machining I do not want any microcracks formed which could jeopardize the hermeticity of the device. In the notes I want to say something along the lines of "machine...
I was wondering if anyone sees any issues with extruding over features to eliminate them. There comes times when you are deep in a model, and you are unable to delete a certain feature (nor modify it) because it is the parent feature for several other things that you have in your model. Thus...
I am trying to figure out if there is a way to apply a preload to a part in solidworks that is a bolt. We already modeled all of our fasteners to replicate minor diameter to see what the max stress is, but now I want to apply a preload to the bolts. I see that there are bolted connections you...
I am running solidworks simulation on an assembly. When I opened simulation it automatically assumed bonded contacts for all of the mates that I had, and it created a global bonded contact for everything. When I started going through the individual contact sets, because I needed to...
I have an assembly (built with several sub-assemblies) with roughly 100 parts in it. Does anyone know if there is a way to get a print out of all of the masses and materials of the piece parts in the assembly? I started going one by one but I figured there had to be a better way, a macro or...
I was wondering if machinists get any real benefit from being able to scale from a drawing, i.e if I call out "SCALE 2:1" on a detail view or in the title block will that help anyone at all. The printer I use does not print out all the correct sheet sizes, so I was tempted to just put "DO NOT...
Hi, I am trying to understand the affect of using a hole pattern with MMC description as a datum feature reference. In the drawing I have a 4 hole pattern of .096"+.005/-.000 holes used as a datum feature, with a MMC tolerance. Then in the lower section of the part I have 2 other thru holes of...
