Custom PVD Coating Tungsten Carbide Head for Deep Hole Gun Drill

Product Specification

Custom PVD Coating Tungsten Carbide Head for Deep Hole Gun Drill

Product Introduction

Key Features

Tungsten Carbide Core

• The tungsten carbide core of the drill head is the foundation of its cutting power. Tungsten carbide is renowned for its remarkable hardness, which allows it to effortlessly cut through tough materials such as hardened steels, stainless steels, and various alloys. It exhibits excellent wear resistance, ensuring a long service life. This durability significantly reduces the frequency of tool replacements, minimizing production downtime and associated costs. The carbide's high heat resistance is also crucial. During the drilling process, a significant amount of heat is generated. Tungsten carbide can effectively dissipate this heat, preventing the drill head from overheating and maintaining the integrity of the cutting edge. The specific grade of tungsten carbide used is carefully selected based on the characteristics of the target material, optimizing the drill head's performance for each application.
• The microstructure of the tungsten carbide is engineered to provide a balance between hardness and toughness, enabling the drill head to withstand the rigors of deep hole drilling without chipping or breaking.

PVD Coating

• The PVD coating applied to the tungsten carbide head offers several significant advantages. PVD coatings can enhance the surface hardness of the drill head, further improving its wear resistance. This is especially beneficial when drilling abrasive materials. The coating also provides a low-friction surface, reducing the cutting forces required and minimizing heat generation. Different PVD coatings can be selected based on the specific drilling application. For example, a TiN (Titanium Nitride) coating is known for its golden color and excellent general-purpose wear resistance. It can be used for a wide range of materials. TiAlN (Titanium Aluminum Nitride) coatings, on the other hand, offer enhanced high-temperature stability and are suitable for drilling materials at elevated temperatures, such as in aerospace applications. The thickness and composition of the PVD coating can be precisely controlled to optimize the performance of the drill head.
• The PVD coating process is highly precise and environmentally friendly, ensuring a consistent and reliable coating quality.

Deep Hole Gun Drill Design

• The drill head is designed specifically for deep hole gun drill applications. It features a long and slender profile with a central coolant hole. The coolant, which can be a cutting oil or a water-soluble emulsion, is pumped at high pressure through this hole and directed to the cutting edges. The coolant serves multiple essential functions. It cools the drill head and the workpiece, preventing overheating and maintaining the integrity of the tungsten carbide and the PVD coating. It also lubricates the cutting process, reducing friction and facilitating chip evacuation. The unique flute design of the gun drill head is optimized to work in conjunction with the coolant system. The flutes are shaped to guide the chips along with the coolant stream, ensuring efficient removal of chips from the hole. This helps prevent chip clogging, which is a common challenge in deep hole drilling and can lead to tool breakage and poor hole quality. The long length and rigidity of the gun drill head enable it to create deep holes with high straightness and dimensional accuracy.
• The gun drill head design is engineered to maintain stability and minimize vibration during drilling, further enhancing the quality of the drilled holes and prolonging the life of the tool.

Customizability

• We offer a high degree of customizability for our PVD coating tungsten carbide head. The diameter of the drill head can be precisely adjusted to meet specific hole size requirements, typically ranging from a few millimeters to several centimeters. The length of the drill head can also be customized to accommodate different depth needs, with options available from relatively short to extremely long lengths. Different flute geometries and PVD coating types can be selected based on the target material and drilling conditions. For example, a more aggressive flute geometry may be used for softer materials, while a more refined geometry is suitable for harder and more brittle materials. The shank design of the drill head can be tailored to fit different machine tool spindles, ensuring proper and secure attachment. This customization allows the drill head to be optimized for a wide range of applications, from small-scale precision machining to large-scale industrial manufacturing.
• The ability to customize the drill head based on specific requirements makes it a versatile tool for various industries, including aerospace, automotive, machinery manufacturing, and more.

Specification Details

• Material	Tungsten Carbide
  Model	Customized
  Size	As customers required
  Place of origin	China, Guangdong
  Feature	Longer Working Life
  Color	Customized Color

Application Scenarios

• In the aerospace industry, used for drilling deep holes in turbine engine components, such as discs, shafts, and casings, for cooling channels, fuel supply systems, and structural integrity. The high precision and durability of the drill head are essential for these critical applications.
• The automotive industry benefits from these drill heads in manufacturing engine blocks, cylinder heads, and transmission parts. They can drill deep holes for coolant passages, piston sleeves, and other critical components, improving the overall performance and reliability of the automotive systems.
• In the machinery manufacturing sector, ideal for drilling deep holes in spindles, gears, housings, and other precision components. The customizability of the drill head allows for the creation of holes with the exact specifications required for proper assembly and function, enhancing the performance of the machinery.
• Can also be applied in the oil and gas industry for drilling holes in drill bits, downhole tools, and pipes, as well as in the manufacturing of firearms and other defense-related equipment.

Installation and Maintenance

• Installation: The drill head is installed in a CNC machine or a dedicated deep hole drilling machine following the manufacturer's instructions. The shank is properly inserted into the spindle and secured using the appropriate clamping mechanism. The coolant supply system is connected to the drill head's coolant hole, ensuring a proper flow of cutting fluid at the required pressure.
• Maintenance: Regular inspection of the drill head is necessary. Check for signs of wear on the PVD coating, such as peeling or scratching, and on the tungsten carbide, such as chipping or dulling. Inspect the coolant hole for any blockages and clean it if required. The drill head should be stored in a clean and dry environment to prevent corrosion. Lubricate the shank and other moving parts as recommended by the manufacturer. If the drill head shows significant wear or damage, it should be replaced or reconditioned to maintain optimal performance. Periodic calibration of the machine and the drill head may also be required to ensure continued precision and accuracy.

Conclusion