The key role of Deep Drawing Hydraulic Press in metal forming: solving complex process problems

In the field of metal forming, the deep drawing process is widely used in automobile manufacturing, aerospace, home appliance hardware and other industries because of its ability to produce complex geometric shapes and high-precision parts. However, traditional equipment often faces process problems such as wrinkling, fracture, and uneven thickness when dealing with high-strength materials, ultra-deep drawing ratios or special-shaped parts. As a benchmark enterprise in the field of domestic Deep Drawing Hydraulic Press machinery manufacturing, Dongguan Shengshi Weiye Machinery Technology Co., Ltd. provides the industry with efficient, stable and intelligent solutions with its independently developed Deep Drawing Hydraulic Press series.

 

Hydraulic Press plays a vital role in the field of metal forming, especially in solving complex process problems. It has irreplaceable advantages. The following is a detailed analysis of its key functions and technical features:

I. Core advantages of Deep Drawing Hydraulic Press

Ultra-high tonnage and precise pressure control

a. The hydraulic system can achieve a stable pressure output of 2000-10000 tons or even higher, which is suitable for deep drawing parts with a depth-to-diameter ratio greater than 1.5 (such as automobile fuel tanks and missile shells).

b. Proportional servo valve technology realizes precise pressure regulation in sections (error ±0.5MPa), avoiding material rupture caused by sudden pressure changes in traditional mechanical presses.

Complex geometry forming capabilities

a. Through the multi-slide linkage system (such as 4+1 slide design), the side wall flange, bottom groove and other feature forming can be completed synchronously to reduce secondary processing.

Adaptive material processing

a. Equipped with real-time strain monitoring (laser ranging + force sensor), dynamically adjust the blank holder force (BHF), and solve the rebound control problem of high-strength steel (HSLA), aluminum alloy and other materials.

2. Actual cases of Hydraulic Press Machine solving industry pain points

Take a certain automobile fuel tank manufacturer as an example. The original process yield rate of its stainless steel (thickness 2.5mm) deep drawing products was only 65%. After introducing Shengshi Weiye Deep Drawing Hydraulic Press, a breakthrough was achieved through the following innovative designs:

 

Four-corner pressure adjustment system: independently adjust the pressure distribution to eliminate material accumulation during the forming process of asymmetric parts;

 

Temperature control module: integrated constant temperature hydraulic oil circulation to avoid thermal deformation caused by long-term work;

 

Real-time monitoring interface: display the forming force-displacement curve to facilitate process optimization and tracing.

 

The final customer yield rate increased to 93%, and the production efficiency increased by 40%.

 

Four-column hydraulic press-3000-ton double-acting stretching hydraulic press. Among the four-column hydraulic press structures, the four-beam four-column hydraulic press is a more commonly used one, which can be used for metal sheet stretching and powder pressing. The 3000-ton four-beam four-column hydraulic press is a larger model. As a 3000-ton double-acting stretching hydraulic press, it has an extra crossbeam compared to the three-beam four-column hydraulic press. The main structural feature of the double-acting stretching hydraulic press is that there are two movable crossbeams inside and outside. The stretching movable beam is installed inside and the edge pressing movable beam is installed outside, which is more convenient for pressing product molding, has good product pressing effect, and is efficient. The four-column hydraulic press-3000-ton double-acting stretching hydraulic press is particularly suitable for large-scale head stretching, deep drawing of metal thick plates, and stretching of automobile cover parts.

When the four-column hydraulic press-3000-ton double-acting stretching hydraulic press is performing double-acting stretching, the stretching movable beam and the edge pressing movable beam can be quickly lowered together, and when approaching the workpiece, it is changed to a slow descent. When the edge pressing movable beam presses the workpiece around, the edge pressing movable beam no longer descends and becomes a pressure-maintaining state. At this time, the stretching movable beam continues to descend for stretching. After the stretching process of the 3000-ton double-acting stretching hydraulic press is completed, the stretching movable beam can achieve pressure maintenance delay, pressure relief and rapid return, and the edge pressing movable beam also relieves pressure and returns accordingly, and then the hydraulic pad and ejector push the workpiece out.