Industry News

Wenling Dajing Mold Co., Ltd. Home / News / Industry News / The performance of the progressive die is closely related to the materials used.

The performance of the progressive die is closely related to the materials used.

2024.05.15
Industry News

During stamping processing, progressive dies are often used. If you want to play the role of progressive dies, you need to master its basic knowledge. Especially when selecting, you should choose a progressive die with good performance. Many factors will affect the performance of the progressive die. Today we will focus on explaining the close relationship between the performance of the progressive die and the materials used.

1. Hardness.

Hardness is one of the important indicators for testing the performance of progressive dies. Generally, the hardness cannot be too low. If you want to obtain high hardness, you need to select appropriate steel and undergo heat treatment processes such as quenching and tempering. To ensure that its hardness remains above 60HRC, the carbon content in the material cannot be too low.

2. Impact performance.

When the material used in the progressive die produces a certain resistance to cracks under impact load, this property is also called toughness. Toughness is the main basis for judging whether the progressive die is easy to break. Generally speaking, the carbon content in steel is low and the toughness is good, but after heat treatment, the hardness will become higher.

3. Bending resistance.

The bending resistance is also the bending strength. Generally speaking, the progressive die should be selected with high bending strength. Usually steel materials have strong bending strength, and the strength of high carbon and low alloy steel is slightly worse.

The material of the progressive die is often closely related to the material used. However, it does not mean that the more expensive the material, the better the progressive die produced. It mainly depends on whether the material is suitable.

From the above introduction, we know that to ensure the quality of progressive molds, manufacturers should work hard on production materials.

In addition to understanding the importance of material selection, it is crucial to delve deeper into the components and characteristics that contribute to the overall performance of progressive dies in stamping processing. By focusing on these aspects, manufacturers can achieve a higher quality of progressive dies and, consequently, better outcomes in their production processes.

Key Progressive Die Components

1. Die Block and Punches: The die block and punches are critical components in progressive dies. The die block holds the material in place, while the punches perform the cutting and forming operations. The material used for these components must possess high hardness and toughness to withstand the repetitive stress and impact during stamping processing.

2. Strippers and Pilots: Strippers remove the workpiece from the die after each operation, while pilots ensure the accurate positioning of the material during each step of the stamping process. These components require high wear resistance and precise manufacturing to maintain the accuracy and efficiency of the die.

3. Guide Posts and Bushings: Guideposts and bushings ensure the alignment of the die components throughout the stamping process. Proper alignment is crucial for maintaining the quality and consistency of the stamped parts. Materials for these components should have ideal wear resistance and low friction properties.

4. Shims and Spacers: Shims and spacers are used to adjust the die components and achieve the desired clearance and alignment. These components must be made from materials that can withstand compression and maintain their shape and thickness over time.

Material Selection for Progressive Die Components

Selecting the appropriate materials for progressive die components involves considering several factors, including hardness, toughness, and wear resistance. The choice of material impacts the die's performance and lifespan, making it essential to strike a balance between cost and quality.

- High Carbon Steel: High carbon steel is commonly used for die components due to its ideal hardness and wear resistance after heat treatment. However, it may have lower toughness, making it more prone to cracking under high-impact loads.

- Tool Steel: Tool steels, such as D2 and A2, offer a good balance of hardness, toughness, and wear resistance. These materials are often used for punches and die blocks, where durability and performance are critical.

- Carbide: Carbide is another material used for progressive die components, particularly for punches and dies that require high wear resistance. Although more expensive, carbide components can significantly extend the die's lifespan and reduce maintenance costs.

- Alloy Steel: Alloy steels with added elements like chromium, molybdenum, and vanadium can enhance the toughness and wear resistance of the die components. These materials are suitable for parts that experience high impact and stress during stamping processing.

Ensuring the quality of progressive dies in stamping processing requires a comprehensive understanding of the materials and components involved. By selecting materials that provide the right balance of hardness, toughness, and wear resistance, manufacturers can enhance the performance and longevity of their progressive dies. Attention to detail in the design and material selection of die components, such as die blocks, punches, strippers, and guide posts, is essential for achieving efficient and reliable production outcomes. While cost is a factor, the suitability of the material for the specific application should always be the primary consideration.