Introduction to hydraulic press stretching process

Hydraulic press stretching process is a cold processing method that uses the stable pressure provided by the hydraulic press to form metal sheets into the desired shape through the die. The following is an introduction to the process:

1. Process principle

1.1 Function of the hydraulic press: The hydraulic system generates uniform and adjustable high pressure (usually tens to hundreds of tons), drives the slider to slowly move downward, and causes the sheet to plastically deform in the die.

1.2 Stretching process: The edge of the sheet is fixed by the blank holder, and the punch moves downward, forcing the material to flow into the die to form a hollow part (such as a cup, cylinder, etc.).

2. Key steps

2.1 Material preparation: Cut metal sheets (such as steel, aluminum, stainless steel), clean and lubricate the surface.

2.2 Die installation: Install the punch, die and blank holder, and adjust the blank holder force to prevent wrinkling.

2.3 Stretching: The hydraulic press slider moves downward, and stretching is performed in single or multiple times.

2.4 Demolding: The ejection mechanism removes the workpiece and performs trimming or secondary processing if necessary.

3. Main application areas

3.1 Automobile: fuel tank, car door, engine hood.

3.2 Home appliances: stainless steel sink, washing machine inner drum.

3.3 Industry: pressure vessel, metal utensils.

The hydraulic press stretching process occupies an important position in metal processing due to its high forming accuracy and adaptability, especially suitable for small batch and high precision production scenarios. If you need high-quality hydraulic press manufacturing, please feel free to tell us (Please scan the following WhatsApp QR code), we will provide you with personalized, customized professional solutions and serve you wholeheartedly.