Years ago, We had k500monel that had yield strengths in the 130ksi range. I am discovering that most k500 that is available is 95ksi-110ksi. Im thinking we must have had a mill run of the higher strength material where I used to work. Does anyone know if monel k500 with yield strengths around...
Ive been designing stainless, inconel and steel housings for years up to 15-000 to 30,000 psi external pressure @ 350F or more degrees. I have always used the API 5C Yield strength collapse formula and this formula has always been spot on. I havent worked with titanium other than a few small...
Im thinking of having a part made since the EDM shop is backed up. Is there any reason that I couldnt use this part on a downhole tool with temps of 350F at 15k psi? Its not a pressure vessel. I know the temp should be fine. I am concerned about the corrosion if there are microscopic voids in...
I always like to test everything if possible. I have a design where I want a pin to shear once a given amount of torque is applied to the shaft. I want the .125 pin to shear when the torque is 120in-lb. I will have to find the correct material to use for the pin because I had to pick a size for...
I just installed 2014 SP4. I noticed when I save a drg to a pdf, the line thicknesses are the same even though I have thin lines set to .006 and normal set to .015. The section lines are coming out thicker (thick set to .017). Anyone encountered this?
I posted this in the Industrial section, but didn't get any hits. My problem has deepened somewhat since yesterday. I need to machine a .50-8 acme (class C centralizing) into a part. The standard acme 8p insert can only machine a .8" min od. Has anyone machine something acme this size that would...
I am designing a drive screw and nut for a new tool. I am familiar with standard acme threads, but after researching lead screws, they use a class C or centralizing acme. From reading the handbook, it seems that the major dia's are different than the class G acme. I cant find inserts for a class...
Ive always used the standard mesh until I had a course on sim premium awhile back and was told to use curvature on most parts. Well, I tried both on a few sims and ended up with very different results. Actually a difference of around 3 times. I have parts reaching a 300ksi von mises when using...
Ive been thru just about every other material and coating threads to prevent galling etc.... I want to use titanium for both mating parts for weight reasons, but not sure if I can get there. I have never had the need to screw titanium onto titanium, so I didnt know if there is a preferred...
Realview is grayed out and only "perspective" is available under the heads up menu. Realview works fine with other models and assemblies, just not in a certain assembly. Any ideas? thanks...I have not updated it is sp0 2013.
I have seen the simplified formulas of bolt clamping which is similar to what I am trying to figure, but wanted to know if this is correct. If want to find out how much force is generated on the end of the .375-16 bolt being screwed into a tapped hole when metal hits metal (the end of the .375...
I am want to know if there are any good books or other instructions online that one would recommend for motion studies.I am just realizing how powerful motion studies can be as far as kinematics and resultant forces given motors, forces and springs. I am taking a course next month in...
I need a replacement material for a downhole tool. I need a non magnetic material that cannot become magnetized. Our 17-4 is becoming magnetic due to the coils near them. Can inconel 718 become magnetized over time given the electrical circumstances around it? I need it to be 150ksi which means...
I have designed a tool assy. I had to pack and go everything to our projects folder. The problem this creates is that all of the pcb's and other non newly designed parts have now lost their link. You cannot replace components with the same name. Is there a easy way to specify where these...
The equation I normally use to calculate pressure rating for tubing tends to become unreliable when getting below .50". Over 1" thru 5, and it is spot on. I need a .250 od stainless tube that will withstand 15,000 psi. If I use .125 for an id, my equation states I need a yield stength of 40ksi...
I have a long cylinder type part that has 4 or 5 of the same 10-32 bolt patterns. Is there a way to show several section lines of the same letter without creating multiple sections or having to draw in leaders and freehand section lines?
All,
I am printing the assy dwg for a tool. paper is 11x80" since im printing full scale. The tool is a long cylindrical shape. When I print to the hp4500 with the black and with (hidden lines removed) option, it prints ok. If I want color (shaded with edges) that shows the hatch on all parts...
This is probably fundamental, or I hope. I just upgraded to 2013 SP4. On my drawings, my colors on the drawing are coming out black. For example, I have the a DIM layer that is blue. Whe I dim something, it will come out black even though Im in the DIM layer. Or, when I go to change a line (dim...
I finally created a rack and pinion in a sub assy, but it does not work in the top assy. I set the sub assy to flexible. Does anyone know if this should work, or must the rack and pinion be created in the top assy only?
thanks
Im using small springs approx .188 x .025wire x 1". I have the choice of 302 or 316 stainless. I believe that 316 has slightly better corrosion resistance, but what about temperature? In an operating temperature of 300-350F, which grade is better about retaining its memory and force? Will 302...
