Computer numerically controlled (CNC) bending is a sheet metal folding process that is carried out by CNC press brakes. These machines can bend sheet metal from just a few mm in length to sections many metres long on the largest industrial machines. At SAMS Fabrications we are able to CNC fold up to 4m long. Our CNC press brake has a fixed bottom bed with the V block tooling clamped in place and a top beam which travels under force with the upper tools which are hydraulically clamped this is known as down forming. We have a down forming CNC press (Edwards Pearson PR4).
The CNC press brake is programmed offline by computer software and the data then transferred to the machine controls. Our software is used to program the press to accept the sheet metal component flat blank at a given distance which is defined by the programmable back stop to determine the point where the bend will be formed. The depth that the top tool blade enters into the V block has been programmed with allocated tonnage for the correct force applied allocated which will define the angle achieved of the final bend, the further the V blade enters the V block the tighter angle the final V bend will be. The final component can be a combination of different bend lengths and angles generated by the CNC program positioning the sheet metal component blank at defined positions and programmed angles. Our press brake also has an automatic hydraulic compensation system known as crowning to ensure the correct angle is produced along the full length of the sheet.
The maximum length of the sheet metal component that can be folded is defined by the length of the CNC press brake bed and also the thickness of material is a key element along with other factors such as the material tensile strength and the amount of tonnage available from the machine to form the sheet metal. The larger the bottom V block opening the greater the sheet metal gauge can that can be bent for the same tonnage. But, as the V block opening is increased so does the internal radius of the bend on the sheet metal work and the minimum fold length is also increased.
We have a wide and varied selection of case studies and examples of work in our gallery which illustrate these design ideas and enable you to fully benefit from the versatility of CNC bending, please take a look to learn more or give us a call if you want to discuss further your particular sheet metal work design needs.
Just a thank you note, I feel a lot safer using my wheelchair now. You don't know how happy I am to get out of the house now.
We've just received the machine case. We would like to thank you & the team for a fantastic first class engineering job you have done for us. We have a meeting with ABB on Monday & will be boasting of the excellent service you have provided use with & recommending/calling on your skills again soon. Many thanks, Stewart Blake.
The brackets look great! Thanks.
The custom made s/steel brackets arrived today. They are great, Just what I needed. You said that if I could draw it you could make it and you delivered that promise. Good job. Thanks
Thank you for the breakfast bar, The look of the 'floating' granite worktop is achieved. Best wishes, Thang!
Got it today, Looks fantastic. Thanks you, Kindest Regards Chris.
We received the Cake Stand with the Plate yesterday. We are very happy with the product. Thank you very much for working with us on this project.
I received the window frame prototype today, and very nice it is too.
Thank you for the Kitchen Unit Blank Panel & Hob Rear Panel, received after lunch yesterday. Both panels were exact as required.
I've received the table we've ordered and would like to inform you that I am very please with it. It looks amazing and exactly what I ordered! I will not hesitate to recommend your company to anyone and I hope to order from your company again.
To all the staff at Sams Fabrications I would like to send you a big thank you for the extra effort you put in to getting our product to us in such a timely manner.
Just a quick email to say our three shower rails have arrived today. They are perfect for our project. Many thanks for your very efficient service and help in making these.
Great job on the kitchen unit and none of the guys can believe the center support for the steel rod was made with polished out welds! It's just too good. Thanks again for turning it around so quickly.
This is just a note to thank you for fabricating the risers for me. They have arrived in excellent condition and are excellent all around. They have now been satisfactorily fitted to the staircase.
Just a quick note to thank you for an awesome job on my gate shoes, The shoes were millimeter perfect and all the holes in just the right position. I appreciate this was a small job for you, so I am very grateful for you doing it at short notice and at a price that was very reasonable.
Hi Gay, Just to say thank for the brass surround, I thought it looked very nice. Thanks for cleaning the wax off.
Hi Gary Thank you, the quality of workmanship is excellent, both myself and the site manager are very impressed. The architects are due on-site on thursday, and I'm sure will echo our comments.
Hi Gary Got the tool tray - really good fabrication - many thanks – we were really impressed with the finish / welds etc.
Hi Gary That was quick – what a terrific service! Thanks,
Hi Gary We are very happy with the brackets we have received, could we ask for another quote (change in qty), we are looking at 400 units (or 200 pairs), if we could get a price for that it would be great.
Hi Gary. Thanks, received all goods. Really appreciate the fantastic service. I have forward your detail in the office for any future requirements.
Hi Gary, I would like to say well done to all of you on the frame and skirting piece you fabricated for us.
Gary, We received the parts yesterday and everything was great with them, very pleased.
Arrived safely, lovely work, many thanks
Hi Gary / Paul I have attached a drawing of another piece of equipment, could you have a look at it and quote for me. P.S the work on the drip tray was excellent. Thanks and Best Regards
