In the development and utilization of mineral resources, button bits have become indispensable tools due to their exceptional drilling capabilities and durability. They serve as swords penetrating the rock, aiding in the search for valuable resources underground. However, to maximize the effectiveness of this “sword,” the processing of solid tooth holes is crucial. The quality of this processing directly affects the grip of the carbide button, impacting the drill bit‘s lifespan and drilling efficiency, making it a pivotal standard for assessing manufacturing quality in drilling tools. This article will delve into the processing technology of solid tooth holes in button bits, exploring how to enhance production efficiency while ensuring precision and achieving the ultimate blend of effectiveness and accuracy.
Importance of Fixed Carbide Buttons Processing
The fixed carbide button is a critical connection between the drill bit body and the carbide button. The precision and surface quality of the fixed carbide button directly influences the button fixation’s effectiveness and the overall performance of the drill bit. Insufficient precision can lead to loose or detached button, adversely affecting drilling efficiency and longevity. Therefore, the processing technology of fixed carbide buttons is a core aspect of button-bit manufacturing.
Methods of Processing Fixed Carbide Buttons
There are three primary methods for processing fixed carbide buttons: cold pressing, hot inserting, and welding. Each method offers distinct advantages and disadvantages, with varying requirements for precision.
Cold pressing: this method involves securely fixing the carbide buttons into the button-hole through cold pressing. It requires high precision to ensure a smooth hole wall and consistent diameter for a tight and secure fit.
Hot inserting: in this method, the drill bit body is heated to a definite temperature before inserting the carbide button into the fixed carbide button. It demands precise hole diameter and depth to ensure proper embedding and fixation.
Welding: it connects the carbide button to the drill bit body. This method has lower precision requirements, but strict quality control is essential for effective button fixation.
Processing Techniques and Equipment for Fixed Carbide Buttons
Different processing methods require specific techniques and equipment to meet the precision demands of fixed carbide buttons.
Conventional Drilling Machines
- Advantages: it is simple and cost-effective, making it suitable for small-batch production and trials.
- Disadvantages: it has lower precision and rougher hole walls, making it unsuitable for high-precision methods.
- Applications: it is used for welding methods, hole processing, and initial trials.
Combined Machine Tools
- Advantages: it is high precision, suitable for hot inserting and cold pressing, with high production efficiency.
- Disadvantages: include a complex structure, high cost, and limitations to small drill bits and single-product manufacturing.
- Applications: it is used primarily for batch production of small drill bits requiring high-precision holes.
CNC Drilling Machines
- Advantages: it has high precision, automated processing, low labor intensity, and adaptability for complex shapes.
- Disadvantages: it has higher equipment costs and the need for skilled operators.
- Applications: it is used for processing fixed carbide buttons in various drill types, especially where high precision and efficiency are needed.
Advantages of CNC Drilling Machines for Fixed Carbide Buttons Processing
CNC drilling machines offer significant advantages in processing carbide buttons in button bits.
- High precision: advanced control systems and precise drive mechanisms ensure high precision in processing, meeting design requirements for hole dimensions.
- High efficiency: automated processing allows for continuous and stable operations, significantly boosting production efficiency and reducing costs.
- Strong adaptability: with robust programming and simulation capabilities, CNC machines can flexibly adjust to different processing needs, handling simple and complex shapes automatically.
- Low Labor Intensity: automation reduces the physical strain on operators and lowers safety risks due to stable processing conditions.
Conclusion
The processing of fixed carbide buttons in button bits is a technology-intensive task that demands high precision and efficiency. A comparison of conventional, combined, and CNC drilling methods reveals a trend toward increased efficiency and accuracy in processing techniques. CNC drilling machines, known for their exceptional performance and adaptability, have become the preferred choice for processing fixed carbide buttons. They meet strict precision requirements across various button fixation methods and improve production efficiency and product quality. As technology continues to advance, we can expect further enhancements in processing techniques, which will significantly boost the mineral extraction and rock drilling industries.
