The key role of hydraulic presses in metal forming

2025,07,05

The key role and technical advantages of hydraulic presses in metal forming

Metal forming is one of the core processes of the manufacturing industry, and hydraulic presses play an irreplaceable role in key processes such as stamping, forging, and extrusion due to their large tonnage output, controllable pressure, and wide adaptability. The following is an analysis of the main applications of hydraulic presses in the field of metal forming and their core advantages.

I. Core applications of hydraulic presses in metal forming

1. Hydraulic press metal sheet stamping

Automobile covers (doors, hoods)

Hydraulic presses provide **200-5000 tons** of pressure to achieve one-time forming of complex curved surfaces and avoid the problem of tensile rupture in mechanical stamping

Applicable to lightweight materials such as aluminum alloys and high-strength steel.

Household appliance housings (washing machine panels, refrigerator doors)

Hydraulic presses can efficiently produce high-precision sheet metal parts with better surface finish than mechanical stamping with molds.

2. Hydraulic press metal forging (free forging/die forging)

Large forgings (crankshafts, turbine discs)

Hydraulic presses (over 5,000 tons) can achieve slow pressure, ensure the integrity of metal streamlines, and improve mechanical properties.

Used in the aerospace field for titanium alloy and high-temperature alloy forgings.

Precision die forging (gears, connecting rods)

Through the closed die forging process, hydraulic presses can form near-net-shape parts, reducing the amount of subsequent processing.

3. Hydraulic press metal extrusion (profiles/tubes)

Aluminum alloy profiles (doors and windows, rail vehicles)

Hydraulic extruders (over 10,000 tons) extrude aluminum bars through dies to form complex cross-section profiles, which is much more efficient than mechanical extrusion.

Copper tubes/zirconium tubes for nuclear power

Hydraulic presses provide constant back pressure to ensure uniform wall thickness of the tube and no surface defects.

4. Hydraulic press deep drawing (cylindrical parts/special-shaped parts)

Stainless steel cups, battery shells

Multi-stage pressure control of hydraulic presses can optimize material flow and avoid bottom cracking (a defect of traditional mechanical presses).

Aviation fuel tank

Ultra-high pressure hydraulic press (with heating system) realizes complex curved surface stretching of titanium alloy.

5. Hydraulic press powder metallurgy forming

Carbide tools, bearings

Hydraulic press (isostatic pressing) presses metal powder into a high-density embryo, which is close to the theoretical density after sintering.

3D printing post-processing (HIP hot isostatic pressing)

Eliminate internal pores in additive manufacturing and improve the fatigue life of parts.

Author:

Ms. Hu

E-mail:

dgliheng168@163.com

Phone/WhatsApp:

+86 13509684273