hole including countersink

[sander]

When I am inserting a threaded hole Wildfire3 automatically includes the countersunk option.

Why is that ? Can I disable that, because standard my threaded holes are not countersunk.....

Thanks in advance.

 

[dr_gallup]

Is there an echo in here?

 

[jelston]

When I am inserting a threaded hole Wildfire3 automatically includes the countersunk option.

Why is that ? Can I disable that, because standard my threaded holes are not countersunk.....

Thanks in advance.

ain't it the dumbest thang!

 

[dross]

Actually, to properly thread a hole, the hole needs to be countersunk first, otherwise, the first thread will pull out of the hole and the screw will be difficult to start.


That said, it's common machine shop practice to csink the hole, it's not required to be on the drawing...


Proe does some weird things.

 

[jelston]

What you are speaking of is not a true 82 degree (or 90 degree) countersink, probably closer todeburring. Pro/E adds actual countersinks, by default.

 

[dross]

A normal part of threading a hole is to include a 60 degreee countersink. This provides a lead-in for the screw as well as preventing the first thread from pulling out. I was a machinist for years, I know what I speak of.

 

[jelston]

Okay, I'm not about to go back and forth for another week






Edited by: jelston

 

[arroyopr]

A normal part of threading a hole is to include a 60 degreee countersink. This provides a lead-in for the screw as well as preventing the first thread from pulling out. I was a machinist for years, I know what I speak of.

I was a machinist as well and counter sink is optional, what we do is add a chamfer the top of the hole.

 

[jelston]

I was a machinist as well and counter sink is optional, what we do is add a chamfer the top of the hole.

Thank you.

 

[dross]

Okay, tell me the difference between a countersink and chamfering the edge of a hole?


The only difference I know is in how they are dimensioned. A countersink is dimensioned as a diameter by angle, a chamfer is length by angle.


The result is the same.

 

[jelston]

Technically, what's the difference between countersinking and deburring, the result is the same.

 

[dross]

Your point is?





No matter what you call it, it is a good idea to do it prior to threading a hole. ProE includes it by default.

 

[dmiller327]

The question that remains un-addressed is: Do you want it on your drawing? And if not, how to set Pro to not include it. I'm still on 2001 so it only a matter of a check box.


I choose not to include it on my drawings. Just like I don't include a chamfer or round where I require sharp edges to be broken. Adding a lead in countersink is standard practice in our shop and explicitly illustrating it on a drawing would only add un-necessary clutter to it.

 

[Guest]

The difference is the perpose for which they are used. Countersinks are used so that the head of a fastener is flush or below a part surface. A chamfer is used to remove a sharp edge. Therefore, unless the surface is used to seat a fastener, techically, it is called a chamfer.

 

[jelston]

Go figure... I can countersink a threaded hole and i can't countersink a thru hole. You go Pro/E!!!

 

[Guest]

You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".

 

[jeff4136]

Sander,
What I find helpful ...
_Select an existing hole Feature that's configured as you want.
_Copy, Paste Special (I have a mapkey for the sequence)

 

[jelston]

You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".

This comment actually reminded me that i have already had a thread like this and I came to the conclusion that it was possible to countersink a clearance hole in WF 3.0. So, i looked into some more.... I would bet money on this. The countersink option is default in a threaded hole which makes no sense to me but the threaded option is grayed out. I think the threaded option was supposed to be default and the countersink option grayed out (maybe, maybe not; don't wanna argue this anymore).

 

[Guest]

You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".

This comment actually reminded me that i have already had a thread like this and I came to the conclusion that it was possible to countersink a clearance hole in WF 3.0. So, i looked into some more.... I would bet money on this. The countersink option is default in a threaded hole which makes no sense to me but the threaded option is grayed out. I think the threaded option was supposed to be default and the countersink option grayed out (maybe, maybe not; don't wanna argue this anymore).

I only mentioned it because I wasn't sure which version of ProE you use and I have only used Wildfire 2. So I'm not sure how previous versions of ProE handle this.


I also think the argument is due to the fact that people have different backgrounds and are arguing points from those backgrounds. After looking a little more at what dross was saying I think I understand why dross calls it countersink. From my perspective, what dross described earlier is a machining operation, he countersinks the hole so he can tap threads or add helicoils, therefore he calls the feature a countersink. However, from my background, even though you performed a countersink machining operation and from the situation described, I would not call the feature created a countersink.

 

[jelston]

You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".

This comment actually reminded me that i have already had a thread like this and I came to the conclusion that it was possible to countersink a clearance hole in WF 3.0. So, i looked into some more.... I would bet money on this. The countersink option is default in a threaded hole which makes no sense to me but the threaded option is grayed out. I think the threaded option was supposed to be default and the countersink option grayed out (maybe, maybe not; don't wanna argue this anymore).

I only mentioned it because I wasn't sure which version of ProE you use and I have only used Wildfire 2. So I'm not sure how previous versions of ProE handle this.


I also think the argument is due to the fact that people have different backgrounds and are arguing points from those backgrounds. After looking a little more at what dross was saying I think I understand why dross calls it countersink. From my perspective, what dross described earlier is a machining operation, he countersinks the hole so he can tap threads or add helicoils, therefore he calls the feature a countersink. However, from my background, even though you performed a countersink machining operation and from the situation described, I would not call the feature created a countersink.

I just wanted to see whata triple quote looks like