Generating Chamfer
Generating Chamfer
(OP)
We are punching an elliptical hole through a conical surface in a part approx .250" thick. I am trying to design a tool to "coin" an angular face around this hole. The tool is approx .250" larger than the hole all around. I have not been able to generate the chamfer surface. I could do a chamfer on the hole in the part but I need to be theopposite of this to be the tool.
I have been trying to do the chamfer on a .250 thick wall shape of length and inside dimensions of the hole. I am trying to get a chamfer follow the curved edge at the inside of the shaped piece.
I am not sure if I have presented this clearly or not.
I could send a file if possible.
Thanks
I have been trying to do the chamfer on a .250 thick wall shape of length and inside dimensions of the hole. I am trying to get a chamfer follow the curved edge at the inside of the shaped piece.
I am not sure if I have presented this clearly or not.
I could send a file if possible.
Thanks






RE: Generating Chamfer
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RE: Generating Chamfer
See FAQ559-1177 for posting files.
RE: Generating Chamfer
It is necessary that chamfer does not change path of inside line.
http://w
RE: Generating Chamfer
RE: Generating Chamfer
ht
RE: Generating Chamfer
SW06 SP5.0
Flores
RE: Generating Chamfer
After punching, and with the same tool we want to be able to form a 45deg chamfer around the edge of this hole. The part I uploaded is the chamfer forming part of the punch. We are unable to machine the punch/form tool because I have not been able to Model it.
I hope this makes a little more sense.
TIA
RE: Generating Chamfer
regular_dimple_punch
In SW sheet metal, you would use the emboss tool
emboss
to get this
dimple_punch
You do not want to create the sheet metal part, but instead you want to make the PUNCH/TOOL to create the elliptical shaped dimple punch. Is this correct?
If Chamfer Cylinder.SLDPRT is supposed to be the punch, then you might want to look at the first link above as a design gude.
Are you punching 1/4" thick aluminum or hot-roll-steel? If it's steel, then a lot of tonnage will be required to punch that much surface area. You might want to consider a secondary operation, 1 for punching, the second using this tool you want to make.
SW06 SP5.0
Flores
RE: Generating Chamfer
After piercing a hole of irregular shape,(ours is shaped somewhat like the uploaded part)we need to coin(displace metal) a chamfer around this irregular shape using a tool which has a shape the same, but just slightly smaller(.06") around the shape to make sure it reaches inside the ID.
We are piercing thru .230-.280 mild steel thru a surface that is on the inside on a cone.
My problem is that when I extrude the shape of my punch plus .25 around to increase the size to use this land for the coin area, then sweep cut the surface to get desired contour, when I use a regular chamfer command the chamfer width varies inward differently around the shape.
I tried to sketch a shape with a 45deg side and sweep-cut the shape but I can not get it to go.
I sorry for the long sentences but I didn't know where to stop.
RE: Generating Chamfer
I would make the punch body square or rectanglar, with a corner knocked off to act as a poka yoke feature for locating in the punch holder correctly.
ht
Regards,
Anna Wood
SW06 SP4.1 x64, WinXP x64
Dell Precision 380, Pentium D940, 4 Gigs RAM, FX3450
www.auerprecision.com
RE: Generating Chamfer
Then we can work to model a punch and die insert for you from that.
I think your example may be to generic for what you are really trying to accomplish. You mention you are coining on a curved surface in an irregular shaped hole.
Regards,
Anna Wood
SW06 SP4.1 x64, WinXP x64
Dell Precision 380, Pentium D940, 4 Gigs RAM, FX3450
www.auerprecision.com
RE: Generating Chamfer
While in the assembly for the tool, select the surface/faces of your part and do a zero distance offset of those surfaces while editing your punch model. Use those surfaces to build your punch from.
Regards,
Anna Wood
SW06 SP4.1 x64, WinXP x64
Dell Precision 380, Pentium D940, 4 Gigs RAM, FX3450
www.auerprecision.com
RE: Generating Chamfer
h
RE: Generating Chamfer
YES!
This is exactly what we are trying to do. Now how do we transfer this to a coin/punch to make this happen. We were able to get to this point but not able to model the coin/punch for this.
To AnnaWood,
Please see CorBlimeyLimey link for the answer to your question.
Thanks to all for answering. It looks like there is an answer in the near future.
Thanks
RE: Generating Chamfer
An alternative is to offset the surfaces required for the Coining Tool and then use those (Extend, Trim, etc) to create a non-merged solid body. That body can then be saved as a separate but associative part.
h
NOTE: This file has two configs. One showing the finished part, the other showing the offset surfaces.
RE: Generating Chamfer
CorBlimeyLimey, thanks for creating the model. Much clearer on what 11991 is trying to do.
Yep, I would use the surfaces already created in the part to create the tools. This is a common technique, especailly for those tool designers that are designing tools for parts with complex drawn features.
Here is an example for you. Should give you an idea of the technique you can use.
ht
Regards,
Anna Wood
SW06 SP4.1 x64, WinXP x64
Dell Precision 380, Pentium D940, 4 Gigs RAM, FX3450
www.auerprecision.com
RE: Generating Chamfer
I seem to be OK thru adding Plane1 and Extrude Cut for Punched Hole.
Is there a reason to use:
Why did you Revolve-Thin2
then Surface Offset .125
then Surface Offset .010
instead of a Part Contour?
After gettin Part/Hole drawn, what's next?
How do you end up with Punch when all else is finished?
Sorry for so many questions.
RE: Generating Chamfer
"Why did you Revolve-Thin2"
Why not? There are several ways to produce most solid shapes. That was the first one that came to mind and involved the least amount of work to produce a flat cone.
"then Surface Offset .125"
That offset was for later use in creating geometry for creating the chamfer.
"then Surface Offset .010"
I didn't create that one. Maybe AnnaWood will explain.
"instead of a Part Contour?"
I don't know what you are asking here.
"After gettin Part/Hole drawn, what's next?
How do you end up with Punch when all else is finished?"
After creating the punch as a multi-body, RMB select it (from the "Solid Bodies" section of the FM tree) and "Insert into New Part".
RE: Generating Chamfer
You need the surface so you can enclose the surfaces water tight, thin you can do your knit into a solid to create your punch.
Regards,
Anna Wood
SW06 SP4.1 x64, WinXP x64
Dell Precision 380, Pentium D940, 4 Gigs RAM, FX3450
www.auerprecision.com
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