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Calculate deep drawing force online with our free, accurate, and easy-to-use Deep Drawing Force Calculator. Supports metric units and safety factor input.
Deep drawing is one of the most common forming operations in sheet metal manufacturing. It involves transforming a flat sheet of metal into a three-dimensional cup or hollow shape using a punch and die. To perform this operation efficiently and avoid material failure, calculating the exact force required is crucial. That’s why we’ve developed the Deep Drawing Force Calculator a fast, accurate, and user-friendly online tool to help engineers, manufacturers, and students find the correct drawing force effortlessly.
Whether you're working on an industrial project or designing a part for academic purposes, our tool gives you a hassle-free way to get precise results using metric or imperial units.
Deep drawing is a metal forming process where a metal blank is radially drawn into a forming die by the mechanical action of a punch. It's widely used in manufacturing automotive parts, kitchen utensils, cans, and other deep hollow products. In this process, maintaining the correct drawing force is essential to avoid common issues like wrinkling or tearing of the sheet.
To determine the force needed for deep drawing, a standard and widely used formula is applied:
F = π × (d + t) × t × UTS
Where:
This formula provides a solid estimate of the maximum force required for the deep drawing operation. You can also factor in a safety margin by multiplying the result with a safety factor, typically between 1.5 and 2.
For example, if the punch diameter is 50 mm, sheet thickness is 1.5 mm, and UTS is 300 MPa:
F = π × (50 + 1.5) × 1.5 × 300
F ≈ 76,205.3 Newtons or ≈ 76.2 kN
This calculation helps prevent overloading the press and ensures a smooth, defect-free drawing operation.
Apart from the drawing force, two more calculations are often required in deep drawing:
The drawing ratio indicates the difficulty of the drawing process and is calculated using:
Drawing Ratio = D / d
Where:
A safe drawing ratio is usually less than 2.0. If the ratio is higher, a multi-stage drawing process might be required.
To find the required blank diameter (D) for a specific cup size, use:
D = √(d² + 4 × d × h)
Where:
This helps ensure there's enough material to form the desired part without excessive stretching or tearing.
Using our tool is simple:
The calculator instantly displays the results, so you can make real-time adjustments and estimations for your sheet metal project.
The Deep Drawing Force Calculator is more than just a tool it’s a companion for sheet metal engineers, fabricators, and design students. With its intuitive interface and accurate formula integration, you no longer need to rely on outdated spreadsheets or guesswork. Whether you're calculating for one-off prototypes or full-scale production, this calculator saves you time and prevents costly errors.
Additionally, this calculator works with both metric and imperial units, supports standard gauge conversions, and lets you factor in safety margins. For anyone involved in drawing operation in sheet metal, it’s a must-have.
Deep drawing is used to manufacture hollow metal components like beverage cans, kitchen sinks, automotive body parts, and battery cases.
Yes, the calculator supports units like inches and psi, and automatically converts them into standard metric values internally.
A safety factor between 1.5 to 2.0 is commonly used, depending on material behavior and equipment reliability.
Common materials include aluminum, stainless steel, mild steel, copper, and brass. Each material has its own UTS, which can be input manually.
Yes, because it's automated, accurate, faster, and you don’t need to manually handle unit conversions or formulas. It’s like having deep draw calculation software right in your browser.