How does a metal die press work?

Table of Contents

1. Introduction
2. Mechanism of a Metal Die Press
3. Metal Die Press Process
4. Parameters and Numerical Analysis
5. SUNMETAL Company Solutions
6. References

Introduction

A metal die press is a crucial machine in manufacturing industries, fundamentally used for shaping metal workpieces. It employs a die—or mold—where metal sheets are formed into desired shapes through pressure.

Mechanism of a Metal Die Press

Metal die presses are designed to apply high pressure to a metal sheet using a tool and die. This press typically involves components such as the bolster plate, ram, bed, and die set. Its mechanism is primarily categorized into mechanical, hydraulic, and pneumatic systems.

Mechanical Press

Mechanical presses operate using a motor driven flywheel. A clutch system transmits the rotary motion of the motor to a linear movement of the ram, allowing the tool to exert compressive force on the material.

Hydraulic Press

Hydraulic presses use fluid pressure to generate a controlled force, providing greater flexibility and control in operations. These are preferred for tasks requiring consistent pressure over time.

Pneumatic Press

Pneumatic presses, though similar to hydraulic ones, use compressed air to exert force. They are less powerful but faster and easier to set up.

Metal Die Press Process

1. Blanking: Cutting the workpiece from the raw material.
2. Bending: Allowing the material to assume the contour of the die.
3. Forming: Shaping the material according to the die’s configuration.
4. Drawing: Creating a cup or hollow shape with material stretching.

Parameters and Numerical Analysis

The efficiency of a metal die press is influenced by several parameters. Key parameters include:

• Pressure Capacity: Ranges from 10 to 50,000 tons, depending on the type of press.
• Stroke Length: Varies from 10 to 600 mm based on specific applications.
• Cycle Time: Typically varies from 1 to 15 seconds, affecting production speed.
• Material Thickness: Can range from 0.1 mm to 20 mm, with adjustments for material type.

SUNMETAL Company Solutions

SUNMETAL provides tailored solutions to enhance die press operations. Their offerings include:

• Custom Designed Dies: Ensures precision for specific industry requirements.
• Automation Integration: Incorporates advanced automation for increased efficiency.
• Maintenance Services: Offers periodic inspections and maintenance for optimal performance.
• Training Programs: Provides instructional workshops for operator proficiency.

References

1. Metal Forming Handbook, edited by Schuler, Springer, 1998.
2. Manufacturing Processes for Engineering Materials, Serope Kalpakjian, Steven Schmid, Prentice Hall, 2013.
3. SUNMETAL Company Profile, internal documentation, 2022.