Skip to content 
Welcome to this comprehensive guide on deep drawing, a process integral to the world of metal forming. At its core, deep drawn metal stamping is a method used to shape metal sheets into complex geometries. The deep draw stamping process involves applying pressure to a flat sheet of ductile metal, forcing it into a die cavity to create a three-dimensional object. This deep draw forming process can create a myriad of shapes, ranging from simple cylindrical shapes to more intricate geometries.
Deep drawing holds a significant place in various industries due to its efficiency and versatility. As deep draw stamping companies like Chengli Hardware and others continue to evolve, their in-house tooling and stamping capabilities have led to the production of high-quality deep drawn steel and other deep drawn metal components. Industries such as automotive, medical, energy, and aerospace widely use this technique to produce intricate stamping parts and components. In the following sections, we will delve deeper into this fascinating process and its wide array of applications.
Deep Draw Stamping Working Process
1. Evaluation of Design
The journey of deep drawing begins with an evaluation of the design. Using CAD or CAM software, engineers create a precise model of the final product. This critical first step ensures that the deep draw forming process will result in the desired stamping part.
2. Selection of Press
The press chosen depends on the complexity of the part, its size, and the type of material used. For instance, steel deep drawing might require a different press than sheet metal deep drawing.
3. Digital 3D Prototyping
With 3D CAD models, engineers can visualize the final product and make necessary adjustments to the design. This ensures a seamless transition to the production phase and minimizes potential issues.
4. Setting up the Equipment
Once the press is selected and the prototype approved, the actual setup of the equipment begins. This includes the installation of the chosen die into the press. It’s important to note that the setup for deep drawn steel or other specific metal stamping parts may require specific configurations to achieve the desired results.
5. The Actual Deep Drawing Procedure
The actual deep drawing process involves pushing a sheet of ductile metal (the blank) into a die by a punch, which forms it into the desired shape. The deep draw forming process can be repeated in a series of operations (re-draws) to create complex, intricate shapes.
This basic procedure provides the foundation for various deep draw stamping techniques, each specialized for different materials, such as steel deep drawing and sheet metal deep drawing, as well as different product designs. The result is a seamless, robust, and high-quality deep drawn metal product, whether it’s a deep drawn box, an intricate automotive component, or a custom-designed metal part.
Modifying Deep Drawn Stampings
1. Formation of Beads, Ribs, and Flanges
After the deep draw stamping process, additional features such as beads, ribs, and flanges can be added to enhance the strength and functionality of the stamping parts. This is particularly useful in deep drawn steel components that require added rigidity.
2. Bulge Creation
Bulges can be created on deep drawn metal parts for various purposes, such as accommodating other components in assemblies. This is a common practice in industries such as automotive and electronics where deep drawing techniques are employed.
3. Coining Procedure
Coining, a precision stamping procedure, is used to establish closer tolerances and smoother surfaces on deep drawn stampings. This method, often used in deep drawn steel parts, refines the part’s features and enhances its overall quality.
4. Curling Process
In the curling process, the edge of the deep drawn metal part is rolled or bent. This technique can be used to remove sharp edges, to create a lip for a lid, or to add extra structural rigidity to a deep drawn box or similar product.
5. Making Dimples
Dimples can be made in deep drawn stampings to add features such as recesses for screws or rivets. These functional additions can aid in the assembly of the final product, making deep draw forming a versatile process.
6. Embossing Techniques
Embossing, which entails creating raised or sunken designs in deep drawn metal, is a common technique used for both functional and aesthetic purposes. It can create features such as lettering, logos, or other decorative elements on stamping parts.
7. Extruding Approach
Extrusion is a process in which a section of the deep drawn metal is pushed out to create a protrusion. This can be useful for creating certain functional features in a deep drawn box, or other types of deep draw stamping products.
8. Hole Creation
Holes of various sizes and shapes can be created in deep drawn stampings as per the design requirements. This step is critical in the creation of a variety of deep drawing products, ranging from automotive parts to kitchen utensils.
9. Ironing Method
Ironing is a process used in deep draw forming to thin out the walls of the deep drawn metal parts to achieve uniform thickness. It’s a common step in deep drawing sheet metal or deep drawn steel, especially when creating products like beverage cans or shells.
10. Marking Process
Markings such as serial numbers, part numbers, or logos can be added to the deep drawn stampings for identification or branding purposes. This process is especially beneficial in industries like automotive and aerospace where part traceability is crucial.
11. Necking Technique
Necking, or reducing the diameter of certain portions of deep drawn metal parts, can create components with complex shapes and geometries. This is often used in the production of parts like light bulb sockets or fire extinguisher nozzles.
12. Making Notches
Notches can be created in deep drawn metal parts for assembly purposes or to accommodate other components. This procedure is frequently employed in the manufacture of intricate metal stamping parts, illustrating the flexibility of deep draw stamping companies.
13. Threading Procedure
Threading is commonly performed on deep drawn stampings to accommodate fasteners such as screws. It is a critical aspect of part stamping that contributes to the assembly of the final product.
14. Trimming Operation
Trimming ensures that excess material is removed from the deep drawn metal parts, enhancing the overall finish. This step helps in creating precision stamping parts with accurate dimensions, reinforcing the many advantages of deep drawing.
Advantages Of Deep Drawn Stamping
A. Superiority Over Other Metal Forming Methods
Deep draw stamping distinguishes itself from other metal forming techniques through its ability to create complex and intricate designs with a high degree of precision. It also excels in the manufacture of parts with a depth greater than their diameter, an advantage not readily available in other forming processes.
B. Rapid Manufacturing for Mass Production
When it comes to mass production, deep drawn stamping shines through its speed and efficiency. By employing deep draw stamping companies, businesses can enjoy high-speed production lines capable of producing a large number of metal stamping parts in a short time frame.
C. Seamless Design and Applications for Airtight Needs
The deep draw forming process produces components with seamless constructions, making it the ideal choice for applications requiring airtight and watertight components. Applications range from gas tanks and kitchen sinks to various types of cans and containers.
D. Precise, Consistent Production Resulting in Robust Components
Deep drawing ensures the production of parts with exceptional consistency and high precision. The components created using deep draw stamping are not only accurate to the design specifications but also exhibit superior strength and durability due to the work-hardening effect induced during the process.
Applications Of Deep Drawn Stamping
A. Solutions Offered by Deep Drawn Stamping Across Industries
The applications of deep drawn stamping are diverse and span across various industries. The automotive industry, for instance, leverages this technique for manufacturing parts like fuel tanks, mufflers, and engine components. The aerospace industry uses deep drawn stamping for creating aircraft components that need to withstand extreme conditions.
B. Case Studies: Battery Casings, Components for Medical Devices, Metallic Diaphragms
One example of a product created through deep draw stamping is battery casings. These products require airtight seals to prevent leakage, making deep draw stamping the perfect process for their production.
Components for medical devices, such as pacemaker casings or surgical instrument parts, also utilize deep drawing. The seamless construction and high precision achievable with this technique are vital for ensuring patient safety and device functionality.
Another common application is in the creation of metallic diaphragms for pumps and regulators. These components must be able to flex without failure over many cycles, making deep drawn steel or other deep drawn metal an ideal material choice.
Crucial Factors in Deep Drawn Stamping
A. Minimization of Material Waste
A significant advantage of deep drawing is the minimization of material waste. The deep draw forming process utilizes nearly all of the starting material, reducing waste and making it a cost-effective choice for manufacturing metal stamping parts.
B. Precision of Measurements
The deep draw stamping process requires precise measurements to ensure the proper formation of deep drawn stampings. A slight miscalculation can lead to defects in the finished product, emphasizing the need for careful planning and execution in deep draw stamping companies.
C. Attention to Drafts and Tapers
In deep draw stamping, the draft and taper of the design play critical roles in the final product’s success. The draft, or the degree of slope in the sidewalls of the part, needs to be carefully considered. Incorrect draft angles may cause issues during the deep draw forming process, like tearing or wrinkling.
D. Consideration for Different Material Thicknesses
The thickness of the material is another crucial factor in deep draw stamping. Different materials may require different thicknesses to withstand the deep drawing process. It’s important for deep draw stamping companies to understand the unique requirements of each material – from steel deep drawing to sheet metal deep drawing – to ensure successful and efficient production.
Conclusion
In conclusion, deep drawing is a powerful and versatile technique used in various industries to manufacture high-quality, precision metal stamping parts. It’s the preferred choice for many deep draw stamping companies due to its ability to produce durable and complex shapes with minimal waste.
At Chengli Hardware, we pride ourselves on our deep understanding and mastery of deep drawn stamping. We work closely with our clients to provide customized manufacturing solutions that meet their specific needs.
Discover more about our services and capabilities here. Let us help you achieve your goals and succeed in your industry with our high-quality deep drawing products and services.
FAQ
What materials are suitable for deep draw stamping?
A variety of materials can be used in deep draw stamping, including deep drawn steel, aluminum, brass, bronze, and stainless steel. The chosen material depends on the requirements of the final product.
What is the difference between deep drawing and stamping?
Metal Stamping: is a general term for a broad category of manufacturing processes that involve using machinery equipped with dies to create shapes from sheet metal. Stamping processes can include bending, blanking, embossing, coining, flanging, and more. The stamped parts are typically flat and shallow with depth less than their diameter.
Deep Drawing: is a specific type of metal stamping that involves forming a flat piece of sheet metal into a deep, hollow shape. This process is performed using a punch, which forces the metal into a forming die. The resulting part often has a depth greater than its diameter, which distinguishes deep drawn items from standard stamped items.
In summary, deep drawing is a type of stamping.
