Deep drawing is a compression -tension forming process according g to DIN 8582. The procedure with the greatest range of application s is deep drawing with rigid tooling, involving draw punches, a blank holder and a female die. The e blank is generally pulled over the draw punch into the die, the blank holder prevents any wrinkling taking place in the flange. In pure deep drawing, the thickness of the sheet metal remains unchanged since an increase in the surface area does not occur, as it occurs in a stretch drawing process.
The material flow in the drawing process can be controlled, as required, by adjusting the pressure of the blank holder in between pure stretch drawing, in which no sheet metal can flow out of the flange area into the draw die, and deep drawing, in which there is a wrinkle-free and unrestricted material flow .
In deep drawing, as a first step, a cup is produced from the flat blank. In all deep drawing processes, the pressing force is applied over the draw punch onto the bottom surface of the drawn part. It is further transferred from there to the perimeter in the deformation zone, between the die and the blank holder.
The work piece is subjected to radial tension forces and tangential compression forces
When drawing with a blank holder, the press must also transfer the blank holding force on to the die. This is achieved either from above via a blank holder slide or from underneath via a draw cushion.
In double-action, drawing operations the press has two slides acting from above: the drawing slide with the draw punch and the blank holder slide with the blank holder . The blank holding slide transfers the blank holding force via the blank holder onto the blank and the draw die. The die and the ejector are located in the lower die on the press bed. During forming, the blank holder brings the sheet metal into contact against the die, the punch descends from above into the die and shapes the part while the sheet metal can flow without any wrinkling out of the blank holding area. In this case, the drawing process is carried out with a fixed blank holder and moving punch. In double-action drawing operations, the drawing slide can only apply a pressing force.
Deep Draw Hydraulic Press Solutions
Micro Team Has Indigenously Designed and Developed Micro Brand Double Acting Deep Draw Hydraulic Press from a Range of 20 tons to 10,000 Tons, which is Used for the various Applications such as Aluminum Cans , Steel Utensils , LPG Cylinders , Fire Extinguisher etc. . The Machine Frame is Rigid Fabricated and Precisely Machined , Conforming to the Geometrical Tolerances as per JIS b 6403 : 1973 ‘Test code for performance and accuracy for hydraulic presses’ issued by Japanese Industrial Standard Committee (JIS). In addition, meeting Safety Norms as per CE / OSHA Requirement . with Proper GIB Guiding Arrangement which assure the Accuracy of the Movement of Machine Beds .
Micro Deep Draw Hydraulic Press comes with Semi Automatic and Automatic Versions with Conventional Hydraulic System and with Servo Hydraulic System , with servo Hydraulic System we are Giving 40 – 50 Percent of Power Saving as Compared to Convention Hydraulic Systems .
We can also Integrate Robots with the Machine fro Pick and Place of the Components . Ancillary Equipment’s such as Tool Lubrication Devices , Conveyors can also be integrated on Customer Request .
Other Features such as Pressure & Flow Control , Ejection Device , Lubrication System , Safety Guards , Foot Switch and Peripheral Equipment’s are Standard Scope of Supply .
For any customization required by customer in the standard series of Machines . please collaborate with our Sales – Technical Team 0091-9717474831 or Email :- sales@microhydrotechnic.co.in . we will be glad to do Design & Manufacture a Hydraulic Press as Per your Requirements.
