Repairing DTH Drill Bits
Replacing Carbide buttons

Repairing DTH Drill Bits: Replacing Carbide buttons

In the field of DTH (Down-the-Hole) drilling, the durability and performance of drill bits is crucial for ensuring optimal drilling efficiency. However, despite using high-quality materials, DTH drill bits undergo wear and tear every time used, particularly on the carbide buttons. These buttons are a key component in rock penetration and drilling efficiency. When they become worn, performance will decline, leading to increased energy consumption, higher operational costs, and slower drilling rates. Fortunately, these drill bits can be repaired through a specialized procedure permitting the replacement of carbide buttons. This being one of the most common and effective solutions.

Why Replace Carbide Buttons?

Carbide buttons are tough inserts embedded in the drill bit's face to help it penetrate rock formations. They offer exceptional resistance to wear, but over time and with continuous use, they become worn, cracked, or broken, compromising the bit's ability to efficiently drill through rock. Once carbide buttons lose their edge, the bit's performance is significantly reduced, leading to slower drilling speeds, increased energy consumption, and potential damage to the surrounding equipment.

Advantages

Increasing Performance

Replacing carbide buttons is an effective and efficient way to restore the performance of your DTH drill bits.

Extended lifespan

By replacing worn or damaged buttons, you can significantly extend the lifespan of your bits, improve drilling performance and reducing operation costs.

Trusted specialist

Georocfor provides expert repair services for DTH drill bits, ensuring that your tools continue to deliver high-quality performance at a fraction of the cost of new equipment.

Key steps

Initial Inspection

The first step is a thorough inspection of the drill bit to assess the overall condition of the carbide buttons. This inspection helps determine if replacement is necessary and whether other repairs are needed.

Removal of Worn Buttons

Once the need for replacement is confirmed, the worn or damaged carbide buttons are carefully removed from the bit. This is typically done using an electric arc erosion machine.

Surface Preparation

After the worn buttons are removed, the surface of the drill bit is cleaned and prepared. This may involve fine machining to ensure the new carbide buttons fit properly and provide a secure bond.

Inserting New Carbide Buttons

New carbide buttons are then inserted into the prepared spaces.