Good afternoon, my question may seem a bit stupid. In sheet metal, when we flat pattern and appears in bendings up or down, what do you mean? I'm trying bending one sheet and we are in trouble where exactly bending the sheet. thanks
You have to give more info Maria. I will spend lot of time trying to help out (that is what I do). (my friends will also) Do you have a file maybe some screen shots?
I'm so sorry. I attach the drawing in question. The material are aluminium and the thickness is 8mm, the radius we are using in the bending machine is 0.8 mm, and the k-factor is 0.5.
My ultimate goal is the image attached, I model this sheet in sheet metal, thickness 8 mm, the radius of bending machine ar 0.8 mm and AW-5754-H111 is the material. I flat pattern. However at the end of bending the sheet the values are different. Why this happens? First I thought it might be a sheet position when the bending so my first question. Thanks =)
John can lead you in the right direction. Maria I have been involved in Sheet metal for over 45 years. Bernie Daraz has a great calculator for that . I have not seen him involved with your question but he probably will be. If you need a tolerance closer than .005 (I'm American and don't do mm) But do this..
or use sheet metal guy.com. It really is fairly simple I do not use K-factor just bend deduction. I like to keep things in 3 decimal places. Bernies calculator has 3 k factors (I also have mine) but for Alum you can use this unless you need extremely high precision. And I mean extremely. No one could possibly notice.
Holey smoke. I just clicked on your picture. Add up the od's then use the calculator to figure out the over all length. I will do this but I may have to leave the post.
One suggestion that I have would be to change the color on your bend lines - this should help you in understanding the direction - normally it is the direction that the bend line needs to move, when laying flat, does the bend line need to come towards you or away from you..
See below .......
Thank you so much, already changed the colors. But my question is really another.
acc to attached pic select the inner virtual sharp an then material outside . the result obviously become similar to your goal. the position of line that appear as line of bending is relate by manufacturing process . dont worry a bout it
John... What the heck is going on? I attended a webinar for the 2016 roll out today But now can't recognize my UI. I do admit it is kind of cool but it is going to take a while to get use to. I mean this is really screwy. I did't download anything. It still says 2015 sp2.1, but I honestly can't recognize anything. but I did get a bunch of interesting features.
This is ridiculously fast. It is the first time I opened SW today. It will probably take me a couple of weeks to get used to his. I mean ridiculously fast.
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