Attachment of cemented carbides TD-102

Cemented carbides are a popular material used in various industries due to their outstanding wear resistance and toughness properties. They're typically made from tungsten carbide (WC) and cobalt (Co) and are used in applications that require high-quality abrasion resistance, such as in cutting and drilling tools.

One of the essential steps in the fabrication of cemented carbides TD-102 is the attachment of the carbide inserts to the tooling components. Adequate attachment ensures that the tool will perform to its full potential and reach its expected lifespan.

There are a few common techniques used for attaching cemented carbides: brazing, diffusion bonding, and mechanical clamping. In this article, we will focus on the brazing technique, which is the most commonly used method for cemented carbide attachment.

Brazing is the process of joining two components with the use of a metal filler that is melted and flowed into a joint between the parts. The brazing process involves three main stages: pre-cleaning, placing the cemented carbide inserts, and heating.

In the first stage, the parts to be brazed, including the cemented carbide inserts and tooling components, must be meticulously cleaned to remove any contaminations. The pre-cleaning stage is crucial because even the slightest impurity can cause the joint to fail.

In the second stage, the cemented carbide inserts are placed onto the tooling components. The inserts must be correctly positioned and secured to prevent any misalignment or movement during the brazing process. There are a few different types of fixtures that can be used to hold the cemented carbide inserts in place, including clamps and jigs.

In the third stage, the parts are heated to the brazing temperature, typically between 1050°C and 1150°C, depending on the type of brazing filler material used. The brazing filler metal melts and flows into the joint by capillary action, forming a metallurgical bond between the cemented carbide and the tooling component.

A proper brazing process requires a balanced combination of temperature, time, and pressure. Too little pressure or too little time can cause voids or incomplete bonding, whereas too much pressure can create cracks or deformation of the cemented carbide insert.

In conclusion, attachment of cemented carbides TD-102 is a precise and delicate process that requires attention to detail and experience. The brazing process is the most commonly used method, and a thorough understanding of the technique is necessary for successful cemented carbide attachment. The right tooling, fixtures, and correct brazing parameters are essential for high-quality cemented carbide joints that can withstand the demands of industrial applications.