Punch And Die
Sundi delivers custom, high-precision punch and die solutions with reliability and quality control. Our in-house capabilities ensure your parts meet exact specifications, from small batches to large volumes. Sundi’s tools are built for efficiency and durability, enhancing your manufacturing performance.
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Punch
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Forming Die
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Forging Die
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Spline Forming Die
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Pin/Core Pin
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Drawing Die
What is Punch and Die
"If you're unfamiliar with punch and die, think of it like a charger plug fitting into a socket. The punch (plug) aligns precisely with the die (socket) to shape or cut materials."
In metal stamping, punches and dies are widely used to shape or cut materials. Depending on end-product needs, some applications require extreme precision, while others do not. In the electronics and semiconductor industries, for instance, precision can reach tolerances as tight as ±0.001mm.
Punch and Die components are essential tools in manufacturing processes, particularly in sheet metal fabrication. They are used in punch presses to cut holes or shape metal through shearing. The punch is a hard metal rod with a shaped tip that matches the desired cutout. The die, in contrast, is a flat metal piece with a hole corresponding to the punch’s tip. When the punch presses into the die, the material in between is cut or shaped accordingly.
Our advanced facility allows us to work with a wide range of materials, from various steels to tungsten, in both square and round components. Our commitment to precision ensures the highest quality for every project.
Punch and Die Advantages
To ensure high repeatability and efficiency in mass production, maintaining the quality of components is essential. Here’s how our punch and die solutions can enhance your production:
- Improve tooling life by 50-100% from the trim punch and die
- Higher resistance for certain precision metal stamping operations
- Reduce the maintenance of metal stamping
- Less downtime when the spare parts need to be replaced
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Explore Our Key Punch and Die Products
Punch and die components come in various shapes and sizes, tailored to create a wide range of hole sizes and shapes.
Material Selection for Punch and Die
We carefully select materials with high hardness, wear resistance, and toughness to enhance the durability and precision of our punch and die tools, ensuring reliable performance in demanding applications.
Material |
Characteristics |
Hardness Range |
Manufacturing Precision | |
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| High-Speed Steel(M2,1.3343,EM2,SKH51) | Excellent wear resistance, high toughness, suitable for high-speed operations | 58-64 HRC | ±0.005mm - ±0.01mm |
| Tungsten Carbide ( brands from EVERLOY,FYJILLOY,CERATIZIT,KENNA) | Extremely high hardness, superior wear resistance, but more brittle than HSS | 85-94 HRA | ±0.002mm - ±0.005mm |
| Tool Steel (A2, D2, DC53) | Good balance of wear resistance and toughness, widely used in stamping tools | A2: 58-62 HRC, D2: 55-62 HRC, DC5356-59HRC | ±0.005mm - ±0.01mm |
| Powdered Metals (ASP23, ASP30) | High uniformity, excellent material properties, suitable for complex shapes | ASP23: 60-65 HRC, ASP30: 63-67 HRC | ±0.005mm - ±0.01mm |
| High Carbon High Chromium Steel (D3, D6) | High wear resistance and hardness, suitable for detailed work | D3: 62-64 HRC, D6: 58-62 HRC | ±0.005mm - ±0.01mm |
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Coating Options for Punch and Die
In punch and die applications, various coatings are applied to improve durability, reduce wear, and optimize tool performance, ensuring longer tool life and efficient production.
Coating Type |
Color |
Thickness (µm) |
Applications | |
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| Titanium Nitride (TiN) | Gold | 1-4 | General-purpose coating, increases surface hardness, reduces wear, and improves tool life. |
| Titanium Carbonitride (TiCN) | Violet-gray | 2-4 | Higher hardness than TiN, suitable for high-speed and high-temperature applications. |
| Chromium Nitride (CrN) | Silver-gray | 1-5 | Excellent for corrosion resistance, good for forming and punching tools especially in HSS. |
| Aluminum Titanium Nitride (AlTiN) | Black to dark gray | 1-4 | High thermal stability, ideal for high-speed machining, dry or semi-dry machining of steel. |
| Diamond-like Carbon (DLC) | Black | 1-3 | Low friction, high hardness, suitable for non-ferrous metal stamping, and plastic molding tools. |
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With decades of expertise in precision design and fabrication, Sundi Tools offers initial on-site consultations to meet your project needs. Contact our sales team for a prompt response.
Punch and Die Application
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Application
Hole Punching,Deep Drawing
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Working Material
Cooper,Iron,Aluminum,SUS
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Surface Finish of workpiece
No Burrs
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Tolerance of the Stamping Parts
+/-0.01 mm
- The metal punch can be custom-made and machined according to clients' requirements.
- The workpieces have no burrs on the end face, flat head chamfering, parallel and vertical cut surfaces, bright appearance.
- Strictly control the punches' quality and inspected them before shipment.
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Application
Bending, cutting
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Working Material
Cooper,Iron,Aluminum,SUS
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Surface Finish of workpiece
No Burrs
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Max punching speed
Times/2500min
- The metal punches are the replacement parts of the progressive stamping tooling, which can process parts with a larger size range and more complex shapes.
- The size and accuracy of the metal punch will guarantee the quality of the stamping parts, and extend the mold life.
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Application
Semiconductor Industry
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Stamping Material
Brass with Tin Plating
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Thickness
0.1-0.2mm
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Speed
>500 tims /Min
- The cut punch coated with DLC coating will have longer working life and properties such as stable quality, good adhesion to the matrix, good wear resistance, low friction coefficient and good corrosion resistance.
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PUNCH AND DIE FAQ
Punch and die sets are used in metalworking and forming processes to shape or cut materials into specific designs, commonly in stamping, punching, and forming applications.
Punch and die sets are often made from high-grade tool steel or carbide, providing the necessary wear resistance, toughness, and durability required for repetitive industrial applications.
Regular maintenance, proper lubrication, and using high-quality materials with excellent wear and temperature resistance can help extend the lifespan of punch and die components.
Common types include blanking dies, bending dies, drawing dies, and coining dies, each designed for specific forming or cutting tasks in the manufacturing process.