As a beginner on CatiaV5, for a mechanical project, I would like to model the embossing of an aluminum sheet in order to obtain a diamond shape in relief.
To do this, simply create two cylinders with the same axis of rotation and then draw on the upper cylinder the male embossing (extruded diamond shape with, say, a height of 2 mm) and on the lower cylinder the female embossing (diamond shape but negative, or hollowed out by 2 mm), while repeating these patterns on the entire circumference of the two cylinders spaced at a constant distance.
The attached photo will help you understand better.
I don't have a problem creating the upper and lower cylinder (let's say 300mm diameter), where it gets complicated is to extrude the patterns (here diamonds) on the entire circumference of the upper cylinder.
I did some research, and I was able to create the sketch of the diamonds on a plane offset from the axis of the cylinder and then go to the generative shape design menu to "develop" the sketch on the circumference of the cylinder, but I can't then do an extrusion of this developed sketch....
Do you have any idea how I should proceed to get the top cylinder with my extruded patterns in the first place?
Thank you in advance for your help and wish you a very happy holiday season
You can't use the developed in part design and if you stay in generative shape design you can extrude but in a single direction (not normal to the cylinder).
I would use the press to make a cut of the surface of the cylinder (extraction) and then in part design a thick surface of this cut.
I get the 4 basic shapes (add or remove mode depending on punch or die) then it will be enough to repeat horizontal and cylindrical.
To note, depending on your project, either the circumference of the cylinder adapts to the repetition of the pattern (standard pattern) or it is the space between the patterns that must adapt (standard cylinder).
Hello Franck, A big thank you for your answer and best wishes to you as well.
When I have access to catia again at the end of the week, I will look at the subject again and I will look carefully at your car part file to try to understand all the steps.
I will not hesitate to repost a message in this conversation if I still need your help.
Hello Franck, I tried to open your file this morning but to no avail. My Catia version is v5R16 Would you please have the possibility to save the file in the v5R16 version?
Under CATIA there is indeed "Tools/Utility" (DownwardCompatibility) which allows you to register a CATPart in an earlier version (only the main body) but this utility does not save the build history, it's like saving in Step.
I'm trying to describe the step-by-step process during the day.
EDIT: It would be nice to add the user parameter "Material thickness" to control wherever necessary.
I structured the graph in this way in order to:
Edit the pattern in a single sketch.
To be able to add to the "Patterns (Punch and or Dies)" bodies functions e.g. stripped rays, which will automatically count into the Circular and Linear repeats.
Thank you very much Franck for the very detailed documents. The explanations seem very clear. I'm going to dive into it in the middle of the week and I won't hesitate to send you a little message if I get stuck at a step. Thank you again for your help. Etienne
Good evening Franck, Part2 v2.zip (94.3 KB) I ask for your help again on this subject. To practice, I tried to redo this design by following your very well described steps from your PDF file. But I get stuck at step 12, in fact, I can't get my cylindrical repetition of the punch patterns at all, I can't select "Extrusion-cylinder-punch" as a reference element... I don't really understand your remark "Define at each step the object of work on the right body" and probably my problem is here... I attach my file part. Once again, thank you in advance for your explanations. Etienne.
Hello sorry for the delay I finished a training course The PB comes from the selection I should have indicated in the .doc that you should select the surface in the graphic area not in the graph
