Lifetime Carbide Punch and Die Set
Carbide is an important component of the tool and die industry. It provides excellent wear resistance and longevity, reducing the need for frequent replacements.
The choice of carbide grade depends on a number of factors, including grain size and cobalt content. The following are some of the most important considerations: surface quality, corrosion resistance and toughness.
Hardness
Hardness is one of the key parameters for a lifetime punch and die set. lifetime carbide punch and die set It needs to withstand the high pressures and repetitive impacts of metal stamping. It is also important to make sure that the material has enough toughness to prevent the edge from chipping. Carbide is an excellent choice because it can withstand the high impact forces and has good corrosion resistance.
The quality of the carbide material depends on its microstructure and grain size. A coarse-grained, cobalt-based carbide is the best choice for forming applications because it is more durable than a fine-grained, tungsten-based material. Carbide also has excellent wear resistance. It can withstand high temperature and pressure and can be used in cold stamping.
During the stamping process, the punches collide with the workpieces. This results in abrasive wear and plastic deformation of the punch’s calotte. This damage leads to a reduced tool lifespan. To reduce this damage, the punches should be reground after each operation. Moreover, the surface of the punch can be coated with a TiCN coating to protect it from the abrasive wear.
To identify the cause of the wear of the punches, quantitative EDS analysis was performed. The result showed that the tungsten content of the material significantly influences the calotte’s performance. The analysis also demonstrated that the cobalt matrix fraction is a strong indicator of the calotte’s performance.
Wear Resistance
Compared to traditional punches, lifetime carbide ones are much more durable. They can withstand the high pressures of metal stamping without deterioration. They also have a longer lifespan than standard punches and are more accurate, which is why they’re used in connectors and terminals.
One of the main reasons for this is the material itself. Carbide is a hard metal that can only be produced with very expensive machining equipment. The process involves combining tungsten and cerium in a carbide alloy, which is then sintering together to form a solid piece. The resulting material has the same properties as gold and is extremely heat-resistant. It doesn’t soften or wear at a temperature of around 1330 deg, which is why it’s often called a cemented carbide.
The TD coating process on these punches increases their wear resistance even further. It also makes the punches much more durable than their uncoated counterparts, and they can withstand 500,000 punching shots without losing their integrity. The improved wear resistance lifetime carbide punch and die set custom also means that the punches can be reground many times before they need to be scrapped.
However, it’s important to note that the coating cannot overcome the limitations of a poor quality tool steel. The base punch must have both toughness and wear resistance, or the PVD coating will fail. That’s why it’s essential to use a high-quality tool steel, such as SKD11 or HAP40.
Precision
The process of punching a hole into the work piece with a punch and die requires precision. This is because the holes must be precise and uniform to ensure that the material cuts easily. Punches made from hard materials like tungsten carbide are able to achieve this precision. However, the punches must be made from a high quality metal so that they can last a long time and not wear out.
There are many different types of punches available for various jobs. These include piercing punches, shaving punches, forming punches and burnishers per print. They are usually custom-made to fit specific designs and requirements. They can be produced in a variety of shapes including cylindrical and square-shaped.
Another type of punch is a carbide factory crimp die. This die offers a more uniform pressure curve than other reloading dies and produces a firm crimp that prevents bullet deformation. It can also be adjusted to separate seating and crimping for maximum accuracy.
The tungsten carbide insert used in this reloading die resists the heat generated by the burning of powder, resulting in less wear and better performance. It is precision-ground to a special contour that eliminates belt marks and does not need lubrication. It is also designed to withstand the stress of decapping military cases. The die is also burnished, reducing case sticking and improving its finish.
Longevity
Carbide punches are used in stamping dies for cutting, shaping, and forming sheet metal. They are made from tungsten carbide, which is a hard metal with excellent wear resistance and durability. These tools are often used in metal stamping, where they need to withstand high pressures and frequent impact forces. They can also be used in other industries, such as manufacturing electrical connectors and terminal blocks.
Tungsten carbide punches are usually used with die inserts together, as a whole punch and die set. Die inserts may be a simple stamping die, or a progressive or transfer die. Sometimes they can include a stripper insert as well. These components are often fabricated with PMHSS or HSS, but they can be made from other materials as well.
The longevity of a lifetime carbide punch and die set depends on many factors, including the type and application of lubrication, heat, and resurfacing and sharpening techniques. It is also important to ensure the die is properly maintained, such as using a proper shimming method and checking the shut height. Other factors, such as the frame rigidity and the amount of vibration, can also affect the life of a die.
A lifetime carbide punch and die set is a good choice for industrial applications that require a long-lasting, durable tool. They can withstand high-pressure applications and provide superior performance compared to other tool materials. They are a cost-effective alternative to steel dies, which can be costly and difficult to repair and maintain.
