Exploring Sheet Metal Bending
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- เผยแพร่เมื่อ 6 ก.พ. 2025
- @EmbraceMaking
• How To Build a Finger ...
In this video, I go over what I have been learning about sheet metal bending.
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Instagram Link: / craigsmachineshop
Please direct all correspondence to:
Craig's Machine Shop
2753 E. Broadway Rd Ste. 101-PMB416
Mesa, Az 85204-1570 - แนวปฏิบัติและการใช้ชีวิต
Good luck with the build, thanks for tagging me! If you plan on using a series of those inexpensive finger and die sets to make up your 24” span, find a way to align them once... maybe weld them together or something. I don’t use mine overly often so I don’t mind aligning mine occasionally, but I bolted mine to the tube that supports them... I don’t have a CNC machine so the holes were hand drilled with some play in them so I could get things aligned and then tightened down. Unfortunately after a few bends, the press has enough force to overcome the tiny bolts and move them a little. Eventually the fingers and dies fall out of alignment and I have to re-align. I make my bolts finger tight to align, then I use the longer fingers and span them between the holders so I know adjacent holders will be in line. Then I lower the fingers into the dies and tighten my bolts back down. This is obviously too cumbersome if you are using this for any sort of production... but my video was basically just showing how you can build one with barely any tools ie. welder.
Thanks, sure thing! I think I may end up making 1/2" thick punches and machine the upper punch holder out of solid square steel. Then machine the lower die out of the same square steel.
Man, sheet metal bending is a totally different discipline. All the big projects I've been involved in over the years used the huge 10' press brakes. Of course the operators have access to hundreds of different tools. I don't know how you scale that down because the problems you solve on both sizes are exactly the same. It's all about clearance and that takes a tall opening and long tools. There are a lot of commercially available dies and every once in awhile you'll see some pop up on the used market. They usually go for pocket change because there are very few people looking for them.
10 foot, that would be nice to have. Just watched a video of a guy teaching the basics of using a 10 foot Cincinnati. Pretty old machine but nice. Yeah, I would like to design it so it's very versatile. Maybe tall enough for some 8" punches and setup to accept American tooling. I guess I should go air bending since that is the most common? I see a lot of bottoming dies/punches on Ebay though.
Have you looked into a Magnabend box and pan brake? They are very compact and fairly affordable. We used it for aircraft seat sheet metal shrouds. Works really well and fast to setup. Harbor freight sells a small 3 in 1 press break with a slip roll and shear that might work for you.
Thanks. Pretty slick machine. Any idea how well they work for production work? It looks like you have to place a plate inside the box each time. Yeah, the 3 in 1s look pretty cool also.
wow big help on my way to buy a vice brake
Which metal used for bending operation
Mild sheet
Carbon steel
High carbon steel
Mild steel. 1018 cold rolled I believe.
good work
The Harbor Freight is 30" for under $500 and has fingers (sections of various sizes that can be removed).
3000 series aluminum is “formable” material. I typically use 3003 aluminum. 6061 with tight radius will crack/break. Hope this helps.
Thanks, I have normally been using 5000 series. I will give 3000 a try.
Craig's Machine Shop 5000 series is also formable as you states! Good stuff!
Hello Craig, interesting video as always. The reason for this comment is that I have watched your videos on "pallets" several times each, thinking of making some myself in the future. I was looking at SWS web site for the fixture plate and noticed that he now has "blank pallets" for sale. 8x12 one inch thick that work on the fixture plate. John also now has "diamond pins" which thread into the fixture plate. Check them out if you haven't already.
Wow, thanks! I didn't realize how many products he has now.
a cheap box and pan brake would do a lot more than a tiny vise brake which is pretty limited. you can get an inexpensive 24" brake for under $300 for lighter gauge material
Thanks. Yeah, I recently made a 26" 20 ton hydraulic press brake.
I'm trying to make up brackets to mount my car wing to the trunk of my car. Finding it difficult to figure out what metal would probably be good for the job but still bednable enough where I can make them myself.
I felt 1/8" thick was a good thickness until i saw 1/8" and thought maybe 1/16" would do the job, but what metals are purchasable that will allow me to bend them without shattering or cracking but still hold up in strength to keep my wing on my trunk?
Maybe try a local metal supply. They can show you the different gauges of steel. 16 gauge is pretty flimsy for a spoiler/wing. 1/8" is 11 gauge. You might look at 14 gauge or 12 gauge.
how do i bend a 90 degree Z stringer profile?. Say datum from left side, do i put the smaller piece under the knife for each clamp?
Yeah, just make sure to flip it over so the bends go in the opposite direction or you will end up with a C.
the movable jaw was separating from the vise because you pushing all that force on the upper part of the jaw
Oh, I guess not the best vice to use for that.
Hey Craig, do you know the type of that alluminium
6061
@@craigsmachineshop2040 Thanks for your reply Craig and thank you also for sharing such a great video. Interesting, 6061 isn't usually bending so great and tends to crack, do you know what temper that one is. Also can you tell me the thickness of it please.
Sorry, I was thinking about another video. I think it was 5K series. Not sure the exact number.
Kewl!
Hey Craig, you might wanna check this out th-cam.com/video/OD_B9SB4Mnw/w-d-xo.html Ciao, Marco
Dose the tormach not have enough travel to make the die?
I have 14" in X and 7.5" in Y. I'm not really sure how to fixture it using a flat endmill. I was thinking I might have to get a 3/4" mill drill or something? The tooling company quoted a 75-degree sash punch and a 75-degree 3/8" opening die.
@@craigsmachineshop2040youd have to either step the angle of with ball endmill or get a custom tool ground with a 75 degree included angle. If you decide to source it out let me know and I'd be glad to quote it to you, I got 4 foot of x travel so the 2 foot long die wouldn't be a issue
@@Daniel-vq9zb Yeah, that would take quite a while with smaller and smaller ball endmills. Thanks, yeah I am working on the design now. An old time company that still makes bottoming dies (coining) quoted me $875 for 2 feet of 30/60 punch/dies. Riteway.
@@craigsmachineshop2040 lol yeah it would take awhile I'd probaly rough most of it with a 1/8. Totally use to long runs though lol I just ran a part that was 29hrs of drilling 1/32 holes. I'd say that sounds pretty reasonable especially including material
@@Daniel-vq9zb Wow, that's a lot of holes. I hope you had a good playlist going. lol
Hey GREG, I have the finger press version of that press, check out their flat top attachment, I don’t have it but I tried to put together the same basic idea with some scrap I had, it did seem to work. I’ve been struggling getting tight radius as well, might work for your prototyping. I’d you would like, send me your email via private message and I will shot your a video of it working on 16 gauge.
Hey Eric. From my understanding, the bend radius is all about the v opening. 16 gauge would need to be a 1/2" v opening. Its material thickness x 8.
Not sure how to PM on TH-cam. You can use info@lightpolecovers.com.
Sorry I’ve been tried up with things for the last week, I will try to send you a few ideas and things I’ve tried. Not sure it will be helpful, but you never know . Thanks again
hello from iraq with you amazing
It's an industry practice to offer the machine at a decent price, the triple the cost with the accessories to make it usable. Think lathe and mill. Annoying cash vacuum cleaner. ✌ 😃
Sounds like my all-in-one inkjet printer. 🤣