The perfect dialogue between flexibility and productivity
MarkSTAHL is a German company based in Jahndorf, Saxony, operating worldwide in the production of tubular parts for a wide variety of industries including marine, medical, aerospace, mining, furniture, industrial and non-industrial vehicle manufacturing.
The parts made by MarkSTAHL are often used for innovative applications, so the company is called to deal with issues arising from small and diverse batches with cut, pierced and bent tubes of any diameter or section.
In the production of cut and bent tubes, guaranteeing the exact shape of the finished part is difficult because the plastic deformation of the material in the bending process is biased by the position of holes, trims and other cutting geometries.
MarkSTAHL needed to acquire a production process that was able to link the various machining operations and establish a real dialogue between the machines to automatically correct the deformation effect of the bending operation.
A production process that maximizes productivity while ensuring maximum flexibility, eliminating waste and trial and error.
The technology to create this type of process already exists and is called All-In-One. It was developed by BLM GROUP and consists of the integration of laser cutting and tube bending systems.
With All-In-One, the deformation and elongation of tubes during bending is already taken into account by the software and compensated for in the laser cutting process, producing the part right from the start without waste of time and material for testing and correction.
There are three BLM GROUP systems, all perfectly interconnected with All-In-One technology today at MarkSTAHL:
The process is extremely lean. The LT8.20 and LT5 laser cut the parts, making the necessary corrections to take account of the subsequent bending process. Then, via the loader, the tubes are automatically transferred to the tube bender.
The E-TURN 52 recognizes the position of the holes and orients the tube accordingly. Then, it carried out the subsequent bending operations automatically, compensating for the springback of the material.
All this means that the part is right from the start with no more rejects, or trial and error.
How the All-in-one
How the All-in-one
calculates the elongation of the
material and communicates
it to the Lasertube.
the Lasertube system
corrects the position of the
cutting geometries along
the tube and processes it.
to the tube bending machine,
which also compensates for
the springback of the tube.
The result is the laser-cut and
bent tube right from the start.