Square Hole Punching Mold

 

The Square Hole Punching Mold are important tools for punching metal materials and are widely used in power equipment manufacturing, sheet metal processing, architectural decoration and other industries. Their excellent performance directly affects processing accuracy, production efficiency and finished product quality, and they are indispensable mold products in modern industrial production.

 

Features

Excellent durability
The Square Hole Punching Mold are made of high-quality mold steel materials (such as SKD11 or Cr12MoV), which are known for their high hardness and excellent toughness. Through vacuum heat treatment process, the surface hardness of the mold can reach HRC58-62, and it has excellent impact resistance and wear resistance. Compared with ordinary carbon steel molds, the service life of this product is extended by 30%-50%.

 

High-precision processing
The core components of our molds are manufactured by CNC machining and wire cutting technology to ensure the perfect alignment of the punch pin and the lower die, and the punching error is controlled within ±0.1mm. Such precision can effectively avoid the problem of punching position offset or uneven hole diameter, and ensure that the size of the processed parts meets industrial standards.

 

Excellent applicability
Our molds are suitable for a variety of metal materials, including low carbon steel, stainless steel, aluminum alloy and copper, and their design supports processing thickness ranging from 1mm to 10mm. In order to ensure the processing quality of different materials, the hardness of the mold punch pin and the lower die is strictly matched, which can not only handle high-hardness metals, but also keep the hole wall smooth in soft metal processing.

 

Manufacturing Process

Raw material selection
The first step in manufacturing Square Hole Punching Mold is to select high-quality mold steel, such as SKD11 or Cr12MoV. These materials are known for their high hardness, excellent toughness and wear resistance. The mold steel is strictly tested and requires a carbon content between 1.4%-1.6% to ensure that it has good mechanical properties and heat treatment adaptability during subsequent processing.

 

Roughing and precision forming
After cutting and forging, the mold material enters the roughing stage. This stage mainly uses CNC milling machines, lathes and other equipment to perform preliminary size processing, laying the foundation for subsequent fine processing. The precision forming stage uses wire cutting or CNC processing technology to ensure that the geometric size error of the punch and the lower die is controlled within ±0.01mm, thereby meeting the needs of high-precision stamping.

 

Heat treatment and hardness improvement
In order to improve the wear resistance and service life of the mold, a heat treatment process must be carried out during the manufacturing process. The mold is vacuum quenched and low-temperature tempered to make its surface hardness reach HRC58-62 while maintaining internal toughness. This process not only improves the impact resistance of the mold, but also avoids the risk of cracking or deformation under high-frequency stamping.

 

Surface treatment and protection
After the heat treatment, the mold surface is finely ground and polished to ensure that its surface roughness is less than Ra0.2. Subsequently, the mold surface is nitrided to improve its corrosion resistance and oxidation resistance. The thickness of the nitriding layer is usually controlled between 0.1-0.2mm, which not only prolongs the life of the mold, but also enhances its stability in harsh environments.

 

Assembly and debugging
Parts such as the punch pin, guide sleeve and lower die must be strictly assembled. The assembly process requires high-precision alignment to ensure that the gap error between the punch pin and the lower die is within ±0.05mm. After assembly, the mold must pass multiple no-load and load tests to ensure that its stamping performance is stable, the punching is burr-free and the edges are smooth.

 

Finished product inspection and quality control
After manufacturing, the mold must undergo strict quality inspection, including hardness inspection, size inspection and punching effect test. During the punching test, the mold needs to complete at least 5,000 punching operations to verify its durability and consistency. Qualified molds will be accompanied by a complete quality inspection report, including hardness data, dimensional accuracy, surface treatment effect, etc.

 

JPMX-303ESK / JPMX-503ESK / JPMX-803ESK

JPMX-303CSK / JPMX-303SK

JPMX-303DM / JPMX-303CM

 

 

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